WiFi Router UPS -DIY | Router UPS with 5 hours Backup | DIY community
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- เผยแพร่เมื่อ 1 พ.ค. 2021
- How to make UPS for WiFi Router UPS, DIY Wifi router UPS is demonstrated in this video. All the components used in this project are commonly available and costs very less.
Below is the list of items used and their purchase links:
3S BMS board: amzn.to/3ecEUeY
XL6009 module: amzn.to/3nDGqde
DC jack: amzn.to/3e8POCv
DC Socket: amzn.to/3e8POCv
Switch: amzn.to/3xFA5mj
Enclosure box: amzn.to/3xDIarD
#routerups
#upsforwifirouter
#routerbackup
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Thank you and Stay Safe!
Disclaimer: This has be done with some electronics knowledge or under experienced supervision. Making any wrong may lead to damages for your router. - วิทยาศาสตร์และเทคโนโลยี
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Make your own UPS and enjoy uninterrupted connectivity :-)
How it will coast 500rs Bro ??
The Only Batteries cost 900..
Please give a cheaper solution available Online in 540 🙂
Hi, Try for getting an old laptop Battery which will cost you 60rs Where you get 4 to 6 good and original cells. Test each cells and use only good cells to form a battery. This will be the cheaper solution. Hope this helps!
It depends on what product you use. If you are looking for a cheaper solution then visit a cycle spare part shop and you will find in all ranges. You can do from 400rs.
@@DIYCommunity bro mujhe ek karke do please
What us the use xl 6009 dc to dc step up
very nice idea of creating though waste/unused products.
Thnk u. Its been a long time Im looking for this . Very useful and diagram is very clear.
You are welcome
Well dome my guy really good video.
Here is South Africa we struggle with frequent power outages and this will really help. Gonna build it payday
Thanks for your comment. Yes this will really help in that situation. All the best my friend!
Pretty cool! Thanks!!
You are welcome!
Update: I've made the UPS according to this this specs. HOWEVER, I NOTED THE BMS DOES NOT FULLY CHARGE THE BATTERIES EVEN WHEN THE INPUT VOLTAGE IS SET AT 12.7V. I've tested this multiple times with 2 routers. Router 1: a 12V 0.5A which lasted 2.5 hours with 6 1800mAh cells - (2 sets of 3 cells connected in series)(this was with the battery's first charge/manifacture's charge) after the batteries were fully drained, recharges the pack through the BMS with a power adapter. The charge lasted only 45 min. The 3 cells were at different voltages after the BMS cut off the supply to the router. Initially charged it with a 12V 1A supply and thought the input current was not sufficient, therefore charged it with 12V 2A supply. Still got around 45 min or less. So to double check, I've charged the same batteries with a 18650 battery charger. Inserted the batteries to the UPS and tried it with a 12V 1A router. The UPS lasted 3 hours and 34 min. This was just with 3 18650 1800mAh cells. I've concluded that it's better to use individual BMS's to charge each cell to get the full potential. Hope this will help anyone who is planning to build this UPS
Was facing similar kind of issue.. finally found that there was no proper contact even after soldering. Checked with multimeter. Happens sometimes in case of li ion battery soldering
I faced the same issue too, if we use the same adapter 12v 2 A, the voltage dropped 0.6v at input due to input diode, hence it is 11.4 v to bms, bms needs voltage range atleast 12.6v so that each battery charged with 4.2v which is optimal. Bms has property to shut down output power when battery voltage decreases to 9v. Hence we get less backup due to battery voltage range 9v to 11.4v. hence it is necessary to have 12.6v alteast to input of bms. If we remove input diode then again there is issue that input led light and indicator light of adapter become ON even there is no input power supply because battery is used by them in abscence of diode. Solutions is to have 13v customised input adapter to power the ups with input diode of 3 A if your router works at 2A. I tried i got best results in back up, atleast 2.5 hrs with 2 A router with three 18650 batteries.
@@pankajubhale4161 any solution found to replace diode near input section?
@@pankajubhale4161 how to make 13 volt supply?
You kiddin me?
You cant get 3 hours of backup just with 3, 1800maH batteries in series, the voltage will increase to around 12V, but the capacity will remain 1800maH..
If You're using just one 12V 1A Router, that's 12watts per hour,
You should expect to get no more than 45 mnts (in fact around 30mnts)
How did you get 3+ hours!
The diode with drop 0.6v from adapter so adapter will actually supply 11.4v to router. The boost converter is set to 12v so it will always draw from boost module and not adapter. To use adapter module voltage must be 11.3v or less which may cause problem sometimes in router function. You need a relay switch over circuit to remove diodes
Edit: I made it using 4 Li ion battery (2600 mah) it gives me 6 hrs of backup for my Airtel 5g xtreme router
Now I used 8 batteries and backup is almost 11 hours.. (enough for my work from home😌)
Yes
Hey! Can you share the circuit diagram.
@@trishalmandrik1295 sorry I don't have diagram.. i designed with trial and error. You may find many voltage based switching circuit diagram on internet. I suggest you to use opamp ani 11v zener for reference.
@@shubhamsawant5129 please make circuit diagram and send me on instagram.. i need your work
@@shubhamsawant5129 and which relay switch u have used?
Great Job 👏👏👏
Good job bro!
I have made it.. working perfectly.. Thanks bro
Thanks for confirming !
your Router Voltage and Ampere?
or kitny hours tak work karta hy same ups?
Bro is it still working ?.....If yes, then how reliable is it
@@yashchinchore4211 still working fine
How many hours do you keep working
The boost converter is not needed in this circuit design. A 12v router has a working voltage range of 10.5v to 14v.
The fluctuation can easily be managed by a 16v 4700uF capacitor
i was also wonderin what is the use of the boost conv until you confirmed what im initially thinking.
Boost converter is used for constant voltage & constant current
@@papaikarmakar84 wouldnt a simple voltage regulator IC work? Like 7809 or 7812 ?
@@saurabhdusane2165 voltage regulator ics are used when you need to drop down the voltage. It can not work as voltage booster. But yes if there is voltage fluctuation then it comes into play.
@stop following me exactly 💯
Wow supeb video , i will give it a try .
Very nice UPS Sir😊
Rajesh you my friend are my buddy now. Thank you for that great video. Well documented, composed, edited, captioned. This is something I’ve looked for some time. Looks like s fun project for a novice like me. I haven’t read the description section yet but if your total cost isn’t there could you share what that would look like? Weighing the cost/time vs buying a ups. Time is precious of course.
Will it be safe for other small devices like Google home mini?
Hi OracleLife, Thanks for your lovely comments! This UPS will cost you rs500/- with old laptop batteries. If you are going with new the. Add rs400/- + battery cost.
UPS selling at e-commerce website ranges from rs1400/-.
Yes you can use it fir google mine, Alexa or home security camera by setting up the output voltage as described on it. Hope this helps!
please mnake a 9v + 12v ups
The one which we see in video is for 12v. Use a step down converter at output and set the voltage from 5v to 12v according to your need.
@diy community
The main flaw in this circuit is charging the battery after a discharge cycle. Because 3s lithium battery has a full charge voltage of 12.6v but router adapter has a close circuit voltage of 11.8v or below if that's a low amp adapter. That can never charge your battery fully and the battery will have half of its rated capacity while it backs up power..
I watched many people post video about router ups but very few of them address this issue in their design.
Hi, I have replied for many comments saying that this will not charge the battery to full. And replace power supply by 12.6 to 12.8v to charge the battery to its full. Anyways thanks for your comments. Appreciated!
Just modify charger by changing feedback of TL431 in charger to 12.8-13. that will do.
@@Amit24981any tutorial video?
Facing the same issue. I wish I had read comments before implementing 😢
@@shailesh0813 can you supply a 12.6v input?
Worked perfectly thanks a lot brother
Welcome brother. Thanks for confirming.
saman kahan se mila vro
05:00 That diode at the the bottom right corner keep provide power from batteries even you turn off the black switch or 12 volt adaptor supply. Because that diode directly connected from bms positive and getting negetive from Buck converter.
I have to unplug the 12 output cable to turn off my router any solution??
Such a informative and great video you made, it is now very to make this wonderful UPS, I have also the same NOKIA router, just a small question, is Power gets disconnected single time whenever electricity goes OFF...?
Hi, This will give an uninterrupted supply. So it does not disconnect while main power is off or when power resumes back.
@@DIYCommunity Hey. Kindly get in touch with me. My c0nt@ct details are in my bio. This is urgent. I seek to hire you to build a online ups 12v 12.5A 150w DC-DC for me. 2days backup. Also, need more 2 ups, 12v 2a 2 days backup. 0ms changeover. Etc.
@@DIYCommunity budget 10000, I can go above that too, I need this urgently. Kindly get back to me.
Hi, I recommend you to go for a 200w inverter connected to a 12v 40ah inverter battery. The cost would come around 8k. You can connect any load upto 200w and that gives more backup. If you have space install a 100watt solar panel for charging the battery. There you use some renewable source also.
@@DIYCommunity alright
Why do you need XL6009 module? 3S BMS board already has 12V output.
Thanks for asking my friend. When ups is running (no electricity) for longer time the voltage reduces slowly. To avoid this I have used a boost converter which always maintains the output voltage.
Thanks brother
Nice, but you only need to use DC-DC converters when using a different voltage at in/out or even several outputs at different voltages or when the voltage does not match the voltage of the battery. Basically only a 3S battery pack with a BMS hooked up in parallel to the power supply would do it in this case (12V). The BMS you used is not balancing afaik, I would recommend to use a BMS with integrated balancer.
i am using this video refrence from 1 year .its going butter smooth with no issue.
BROTHER I MADE IT AND ITS WORKS WELL WITH JIO FIBER 2.5AMP THANK YOU...BUT BMS P+ TO OUTPUT JACK DIODE IS WRONG CONNECTED IN SCHEMATIC IT SHOULD BE CONNECTED DIRECT TO IN JACK INSTEAD OF P+
bcs current flow from p+ to out jack without sitch on
Hi, Thanks for trying this out. And yes the bypass line needs to be connected before the diode and direct to input jack. I have replied this to one of viewer earlier and now I will pin this message so that everyone who tries will avoid doing this mistake.
@@DIYCommunity why don't you add the revised circuit diagram, not everyone is electronic expert. I have made your project according to the circuit diagram you have included in the video and my project is not successful. My mini UPS retains power only for less than 5 minutes though the batteries have not run down. I am not sure what is the issue. Though not an expert, I too suspected the bypass and the diode. Could you please add a link to the correct diagram please. that would be very helpful. Please.
Hi, The changes i explained for few members is to isolate the battery line with backup line. And even without this is should work in same way.
If you are using this ups for a 12v router and getting a lesser backup then you can remove the boost converter and try running it directly with battery bms. By doing this we can detect any problems with boost converter or bms.
In Most cases if the boost converter is not capable of delivering a constant current then BMS gets into sleep mode. I assume your setup is also having similar issue.
Try the above changes and let me know.
how much it costs ready made available cheap
Excellent 😊👌
Hi, I want to use an external charger like Imax b6 instead of the BMS board. What do you suggest to use as a bypass when router adapter kicks in?
working fine for me. nice video 😎😎😎
apka router kitny voltage and ampere ka hy?
Explained well exlenat video bro😘♥️
Usefull contact like it ✅💙
hola consulta, necesito conectar 2 router de 12v que tendria que modificar para ponerle 2 salidas. sirve para usarlo siempre conectado y cuando se corte la luz usa las baterias
Great
Nice
Nice 😊🤘
I am finding it difficult to understand the purpose of the switch. If the switch is in the off position, the UPS battery will be powering the router, all the time, if it is in the on postition then the router will be powered by the input from the UPS power supply. Surely the whole point of the UPS is to keep the router working incase of a power outage. Therefore why not do away with the switch. Your thoughts please.
Good hit 🇮🇳👍👍 Kuki
i am using tplink 940 9 vatt what do u prefer which battery please guide me and 1 thing tell me 1 sell in which vott required
Thanks for the video. The ckt. works well but the bypass line is draining the battery even when the switch is off.
Hi, Thanks. You can connect the bypass line before the diode in input side. This will avoid connecting to the battery.
Good
The problem with this method is.. Battery is only charged to 70-80%.. Because 12 adaptor outputs about 11.7-11.9 v at most so 11.7/3 =3.9v per cell... But li ion can be charged to 4.2v per cell.. So.. Yeah.. I am using 2s 3p configuration with relay.. But sometimes there is rebooting even if caps are used..
How do i get 9v 0.6a or 1a pls tell me and also 12v...
Should i use voltage regulator ic ??or another booster
By adding a bypass on the ups how would it then switch over to use the battery if the power goes out. You see here in South Africa we have a thing called loadshedding ,its where the Government switches our electricity off for a few hours a day and this happens 2 to 3 times a day sometimes more depending what stage we are on.
Hi, This works as an inline ups. Battery charging and powering up your device will happen on same time. In absense of main power the voltage from battery takes up the priority and starts powering your router. Based on power rating of router and battery capacity the backup time varies.
Hello.
I just wanted to ask that would it would if i excatly follow your video steps cause in comments there are many things I am not able to understand like bms .
my wifi is 2Amp and 12 V . and power bank is 5V and 2.4 amps
Please reply I have ordered the thing you suggested
Thanks
Hi i have a question, i am out of the other items, can i not put the boost converter and the leds? I just want like a battery pack switch to it when power is out. Thanks
Hi, yes you can do that. Ensure you battery pack output voltage is same as router voltage specs.
You don't need heavy duty backup for Router. For a router UPS a backup of 5-10 min should be sufficient . This can be achieved by 1/2 battery.
Hi it depends on palce where you stay. If you are staying in an apartment and have a DG backup then yes 10min will be sufficient. For people who don't have any backup and when they have scheduled power cuts will need more backup. Hope you agree!
Good one
can you make one and send me ?
Hi, I haven't started selling them yet.
Hi brother, it is working perfectly fine for me except I noticed the circuit to be working even when i turned off the switch. I feel this affect the router as the bypass voltage from the batteries will be reducing without the bms module. I have now removed the bypass diode due to this problem. Is that okay?
Hi, you can use the ups without bypass line. It is optional to have this.
If you wish to have bypass line which gives direct power from adapter and not from battery tap the +ve wire before the input diode and not from the bms. Hope this helps !
Hello, very good this UPS !. I'm going to build one, but I need to power the 12V 1.5A router and a 12V 1A fiber optic POE. What modifications should I make to your circuit to adapt it and power my two devices? Thanks a lot!
Hi, boost converter used in this circuit can handle upto 3A, so only modification you need is to add an extra socket to connect your fibre optic POE. No major changes required.
@@DIYCommunity can I use lm2496 module with this circuit? ❤
Hi, lm2596 is a stepdown convertor. You can use it when you router requires voltage less than 12v. ie, 9v or 5v.
@@DIYCommunity my router is 12v 1.5amp battery gives 14to17 volts output
Is it possible to add more baterries so they provide the 12v needed, perhaps using a different charge controller? Does the booster itself consume any current to work?
You can add more batteries in parallel and choose a BMS/charge controller according which suits lithium ion battery.
What is significnc of 3S 10A and 3S 20A. which one is better & why ?
the adaptor input is connected also to the battery base on the diagram.why is that if the ups switch is off, theres no power on the router even though the adaptor is paralleled to the battery?
Hi, the negative is common on whole circuit. And there is a bypass line provided which will power your router independent of ups switch.
is we use 4007 diode the voltage drops and BMS does not gets proper current, its working great but just a small query.
Hi, Yes i understood and I suggest you to use a schottky diode for lesser voltage and current drop. Let me know if you have any other queries.
Saw your video on coverting single speed to geared....I have dynacraft krusher fat tire mountain bike..Will that method work with my bike?
Hi, If your bike frame is made of steel then yes you can possiblity install gears. As I have shown in this video the gap has to be increased to fit the gears and ensure the tyre is centered after that. Try looking for a 5 or 6 speed freewheel only. All the best !
Hi
It was excellent for me,
Can u plz tell me that can we use 9v or 5 adapter for this mini ups input for charging the batteries or we have to use proper 12v adapter?
Hi, For proper charging you need to use 12.6v adaptor. If you prefer to use a 9v or a 5v input you have to use a constant current step up converter. This can be a solution but costlier too when compared to a 12v adaptor.
Ok thanks, i search alot about making mini ups, but ur video was unique and easy, i made my own ups by ur video, would u plz send me ur whats app no ?
Glad to know. You can connect with me over telegram "DIY Community".
Thanks for the great video keep up the good DIY's. Do you have any idea why my LED next to my out port switches off when I plug the adapter in that goes to the router.I'm refering to the one of the female jacks thats on each side of the cable that plugs into the router from ups.Please advise .
Thanks for your comments. Kindly check the wiring again. If battery is very low and when connected to mains and same time router also plugged in you may see led blinking. This is because battery is drawing more current to charge it to an optimum level. But if led goes off I guess something on connections to be checked.
Kak ... Saya ijin tanya ... Modul step up nya itu sudah ada fitur UVLO gak ? Karena kalau ga ada UVLO ( undervoltage lockout ) saat inputan dibawah 3.3 Volt ,.. outputnya bisa melonjak ke 40 Volt ... Kan bahaya kak untuk peralatan
I need any output of 5V - 1Amp. Also it will be great if I can use 5V input. This I need for wireless camera(realme).
@Rajesh what modifications shall I make?
Another question: in case ups gets fully discharged due to long power cut, will it require manual intervention to resume power supply to camera/router?
You can use 1S BMS and connect cells on parallel. Use a step up boost converter to convert BMS output to 5v. And 1S Bms can be charged 5v adaptor (just use a 1N4007 diode in input).
For your second question. No there will not be any manual efforts needed at any case.
Can we use relay for automatically cutoff charging
XL6009 will reduce the back-up time. I hope we can avoid using it. What do you think. What will happen if we dont use XL6009. Is it neccessary ? what about diodes, do we need to use diode in the input of 12 V adapter and also in the input of the XL6009 pcb ? Why is it required ? Pl reply
i guess there is a mistake in diagram image....... from bms positive there is a wire directly connected to out port with 4007 diode ......please check and let me kno is it correct or mistake
Brother I did it all perfectly but when I test the battery voltage by P+ and P- in the BMS board it shows nothing. But separately all batteries show the voltage of each and added battery.
Can I know the reason
Hi, there may be 2 reasons.
1. BMS goes into sleep mode when there is a fault detected. Try feeding a 12v in P+ and P- to wake it up.
2. Check connections or Faulty BMS
Let me know after trying this
Hello friend, I've made UPS for 12V Gpon using your design but with little modification.. I've added an voltmeter to monitor battery pack health and 2nd output using a step down buck convertor for 9V Tplink Wifi router. Thanks.
Thanks for trying this and confirming back. Appreciated !
@@DIYCommunity what is the size of the plastic casing (LxWxH) from where did you brought it ? And does your white plastic Casing called as some shop keeps needs to tell them, is your Inventor still working for your Router ?
Hi, the box i used is called camera junction box brought from a local electrical shop. It's is of size 4x4 inch.
My ups is still running perfectly and i haven't faced any downtime in past 1.5 years.
@@Royd20 if you have problems finding the box like me then you can use a 2/2.5 inch PVC pipe to make your custom box. You can find many tutorials on TH-cam to make box from pipe.(it needs your time and effort though)
Great effort 👌
I have two questions on this video
1. As u know there is a landline output so can I connect my landline to the router while using the mini ups? (NOTE: hardly I receive one or two calls in my landline per week means there is no much usage)
2. We know that when power goes it automatically works on UPS's battery but when power is back does it still work on battery? My concern is battery might be over charged as we use this ups 24*7 hence battery life will come down
Plz clear my doubt plz
Hi, here are my answers
1. Yes you can connect landline to router as it does not consume more extra power. The router drives the landline and we just power the router with same voltage.
2. This is a inline ups. Charging and discharging is managed by BMS connected to it.
I am using it on tata play router with a landline connected. Almost 2 years now and never see my router is off.
@@DIYCommunity tnx dear
Now I will connect my landline and let the router be On 24/7 via ups
Once again thank a lot
And yes it's really an excellent presentation in the video
Great effort you have put to complete this video
If possible to use existing battery & bms to lifep04 cells. Back up will be double?
(With 4 cells )
Hi, Backup depends purely on capacity (mah) of cells used.
And If you are planning to use LiPo4 cells choose a BMS which supports these.
Sir battry bms buster bas 3 chij se router chalegaana???
Sir ji maine bhi same isi tarah se banaya hai, lekin charging input par jo diode laga hai wo to turant hi heat hone lag raha hai. Jada value ka diode lagane par bhi bahut tej heat hone lag raha hai.
Just a doubt, is the step up converter really needed?I'm asking because the voltage from bms is already 12v.
Hi, I have use if to give a constant voltage when router is running from battery. While discharging the voltage will go below 12 volt. Test your router if it can work at lower voltages without any problem then you can avoid the converter. Also I have shown in video to show people with 9v router can adjust to their need. Hope this helps.
Hi, can I connect a 12v 7ah battery instead of the 18650 set ? Can I directly connect it to the XL6009 ? No need of a BMS right ?
Hi, Yes you can avoid using BMS. Instead you need to make a charging and cutoff circuit for your lead acid battery to work. Connect a boost converter in output is battery and vary the voltage according to your router.
Nice work, I am curious here, how does it maintain the flow of current when power source goes from ON to OFF?
It switches from direct power to battery but there is absolutely no switch over delay?
Is it handled by BMS unit?
Hi, the BMS is connected parallel to the router and power supply. Power supply charges the battery and same time it supply power to the router. As soon there is a power cut the BMS will continue to supply required power and the voltage change or fluctuation if any is taken care by the boost converter.
@@DIYCommunity imo, it is better if you add relay so that boost converter isn't in the circuit 24/7. they will fail prematurely because of low quality Chinese components used in them.
@@lordjaashin A relay cannot be used because the delay it has causes the router to turn off for a few milliseconds
@@victorlopez2620 no router does not turns off if it loses power for a milli seconds. almost all routers come with capacitors to smooth any irregularity in power delivery rail
sir kya aap power bank circuit aur xl6009 bosster use karke circuit bana sakte ho?? line se v chale aur line katne k baad powerbank se automatic on hona chahiye
Hi Shisheer, There is already a video on the same in my channel. Kindly check and Thanks for your interest.
Hi very good video.
But i have a question can i use 20A bms for this???
Hi Yes you can.
does 12v source sufficient to charge the battery through BMS? Shouldn't it need higher voltage to charge the lithium battery rather than just 12v? (don't you need another xl6009 from 12v input to BMS with xl6009 out voltage set to ..say 13.5 v?)
Hi, the input should be 12.6v to charge the battery full.
Yes we can have a XL6009 module in the input as well when the battery capacity is less than 3A. When battery amp is more then we have to choose a converter which can handle that current.
@@DIYCommunitywhere to put xl6009 in the input before or after the diode?
where to put xl6009 in the input before or after the diode?
Hi, if you are planning to use a converter in input section to fed 12.6v to battery, use it before diode. And ensure using a converter that handles your battery current or else it may heat up.
@@DIYCommunity i am using xl6009 at 12.7 or 12.8 v
I have some doubts, in my area there are power cuts many times for 15 to 30 min but not more than hour, is it sufficient to use 3 18650 old cells of 2500mah capacity. My router uses 12v 1.5A.
After the power cut is there any gap(delay) to switch in battery mode?
And the last one is that i think it is using battery power all the time even in charging time also means it is charging from one side and discharging from another side.
Hi, with Three 2500mah batteries in series can give upto 2hrs of backup. The above said can be achieved only with original batteries.
As you said if there are frequent power cut the batteries may not charge full to survive for another power cut.
With this circuit the will not be any gap in switching and no fluctuations during power cut.
My suggestion is if you are planning for a longer backup then plan for making 2S or 3S battery pack with original & good capacity cells.
Hi, if your router is of 12v. Try once to connect the bms output directly without boost converter.
The problem you are facing is that your BMS is going to sleep mode. And reason might be one or more faulty batteries or load is very less.
@Lyrical Beat Box🎵 📢 brother tell me your router name. mine is working fine with 6 cells of 2000 mah capacity without any booster (12v !amp) getting 3 to 4 hrs backup.
Mine is a Nokia router. The problem you see with boost converter could be because of non original or a faulty one. You can use the setup without boost converter for now but I recommend buying a good one and integrate it is a better solution for long term usage.
I think there is a mistake in this circute.. one of the output diode anode directly conected to bms P+.. mean the diode alow the volt to output which result the output never off even the swich is off until the bms get the discharge voltage. Better the output diode anode connect to input diode anode.
Hi, you deserve a heart from me, Yes the connection for bypass is suppose to be from input line before the diode.
@@DIYCommunity yeh.. and thanks to u, anyway i've made this and tested successfully
That's great to know. Stay safe and stay connected!
Hi Bro Nice Video.
I want to ask that i have xl6009 step up boost converter. What should I use if i want to use it on sometime 12v router and sometimes 9v? can i use any other converter recommend me some names
Hi, Thanks. You can use XL6009 for 12v and use XL4015 for 9v conversion. You can connect both to some battery bms output.
When the switch is 'on' in the ups, though the current is also 'on' in our house, does the router works on AC power supply or the DC 12v battery ?
Hi, There is a bypass line provided and its independent of UPS switch. When Switch is kept ON your router still get supply for your Adapter. and the supply is balanced by battery power when there is a fluctuation or a power cut. The battery charges even without turning ON the switch. Hope this helps!
But if the switch is on permanently, will there be a loss of current in it from the battery? And will the ups provide 12v 2amp rating?
No there won't be any losses. Your router get enought power from the bypass line.
@@DIYCommunity And sorry to disturb you ,will it provide 12v 2amp power?
It directly passes the output from your adapter connected. If your current is more than 1A use 1N5408 diode in bypass line which has a current carrying capacity of 3A.
what is the purpose of putting the diode from p plus of the BMS to the output terminal?
Hi, as I used same type of dc socket for input and output diodes are used to protect reverse current if the charger is plugged wrongly to output socket.
bought ups from amazon.i disassembled it to add more batteries. one thing i noticed is it doesn’t have any bms module. so is it necessary to add bms module? does bms module have effect on charging time?
currently getting 12hour backup with added batteries but charging time is high. need to reduce it
Hi, is that UPS made of lithium ion battery ? did you see any other pcb circuit? Because without a BMS circuit charging lithium battery is dangerous. BMS balances all the cells and it protect from over change and low discharge. I recommend you to add a BMS. To improve charging use a higher ampere charger than what you use currently. Again charge using BMS only.
i didnt know nokia make wifi routers it must be a super strong router
Yes they make routers, what I have is provided by TATA play fibrenet.
Very nice.
My router is 9V 0.8A and not 12V and I have 3 18650 Li batteries, can I follow your tutorial (except set voltage booster to 12V) with same components, or I must replace some stuffs? And router adapter is 9V, will it work with the 3S 10A normally pcb or I need 12v adapter ? Thank you
Hi, you can adjust output voltage to 9v and avoid bypass line mentioned in the circuit.
I prefer using a 2S BMS as you have a 9v adapter. By using a diode the voltage will reduce to 8.6v which will be a perfect charging voltage for your 2s bms.
@@DIYCommunity thank you for your reply.
I managed to have a 12V adapter 1A for an old broken router and 4 batteries. I will follow your tutorial, but can you show me the diagram of 4 batteries with the 3S bms module please? Thank you
Hi, with 3s bms you need 3 batteries only which will give you 12v. With 4 batteries the voltage will be 16v and you need 4s bms and also a 17v charger/adapter.
@@DIYCommunity and if I put the 4th battery in parallel?
If you want to add batteries in parallel it should be 3 in parallel. Adding one will not help and it may damage other batteries connected in series.
Buen día. Tengo una duda y cuando se cargue la batería como sabré?
Hi Thanks and good day to you too. There is no battery full charge indication if needed you can use a lithium ion battery level indicator to it. As BMS is connected to battery it takes care of charging and discharging, did not had a need for battery level indicator.
I Can't get this 680 Ohm can I use other instead of 680 Ohm? If so, which one to use?
Hi, you can use 1K ohm resistor instead.
Bro can I use 0v and 12.5v point in my bms board for output rather than using the output point...
Bcoz I have noticed my bms doesn't provide voltage from output point once it reach to 8v it stop working
Did you checked by connecting it
Hi Bro! Very Helpful Video❤️
I want to ask that I have 12v 1A router and Charger both. Should i use 20A bms or 10A? and if i use 20A bms that what will be loss or benefit.? I have six 2.5v 18650cells.
Second According to my charger recommend me a series of diodes like 5408 etc which will be perfect?
Thanks❤️❤️
Hi, you can go with a 10A BMS. Though using a 20A will not harm anything, just will be oversized and for future if you plan to add cells you can parallel up to 20A.
You can use 1n5822 schottky diode for less voltage and current losses. If your charger can output 12.6v then the battery can be charged to 100% and gives more backup.
Test each cell before making a battery pack. This will avoid failures at later stage.
Thanks
Is it okay to make this without 4007 diode?
Great video 👍 please let me know, this ups can make with 4 batteries ?
Hi, each cell is of 3.7v so for a 12v router 3 cells will be good. If you want to use 4 cells then voltage will be 15v and you have to choos a 4s bms to make a battery pack.
can i ask what is the use for the diode? in the in and out of the 12volt
Diodes are used to stop the back current. As both input and output has same dc jack there are chances of connecting it wrongly. Diodes will protect the wrong flow and safe guard this ups.
@@DIYCommunity okay thank you for the information
In ur above connection out put supply is always on.When switch on supply from converter and when u off switch supply from BMS direct. .U have supply positive from BMS to Out put Supply .If u have to give direct supply from Bms then why u used converter u can give direct supply from BMS.
everything is seems good.
One connection from BMS to output positive supply should cut.Due to which output supply comes only from converter due to which output device get always constant voltage with constant current(amp).
From ur above connection we get 3.6 to 4 amp current.which is bad for output device or router.Router needs 1.5 amp to 2 amp current
Hi, Thanks for sharing your observations.
I have answered for all these questions earlier when asked by other subscribers. Let me tell you again.
The bypass line should be connected on input side before the diode so that only after switching the output works. Use a 4 pole switch for controlling both battery line and bypass line same time.
Boost converter is used to stabilize the output voltage. As when ups running in batteries then battery voltage may vary and go below 12v.
The output Ampere can be any greater than specified in router as the router consumes only what it requires. This suites all electronic circuits.
I experimented running one of my router with car battery which is of 45amp and it works perfectly.
Hope this helps!
connection diagram you have shown is different from the video ? in the video input jack two diodes but in the diagram output jack has two diodes ? which one is correct ?
Hi, kindly follow the connection diagram.
@@DIYCommunity as per the diagram i made it but its giving 7 min backup only ? i dont know the where the problem is ?
Okay, can I know what batteries you have used ? And what is the capacity of each battery ? What is the voltage measured in BMS ?
The backup is purely depend on battery capacity.
@@DIYCommunity 18650 batteries 2000mah used 4 batteries.. on first day it gave 45min backup but from 2nd day on wards it's giving only 6 min backup i have checked everything fine..
Hi, connect with me on telegram -"DIY community" need to understand more on your BMS and circuit. You can send me pictures and videos there
Hi! I made the same circuit but with only 1 set of cell(3 batteries),but the backup is only around 10 minutes....and when the current comes back the router lights starts blinking without no reason.Im guessing the batteries are not getting fully charged.... what might be the issue?Can u help me with the problem here?
(Everything was done according to ur circuit diagram,no mods were added.)
Hi, can you tell me what batteries you used. Mak and capacity ?
By the way you explain I am guessing battery is draining faster and while charging the power adaptor is not enough to handle both ups and router, because of this ups lights are blinking. Try using a higher amp adaptor if you have. This should solve your problem. Thanks.
@@DIYCommunity
18650 batteries 3200mah with 3.9v(chkd)
And i got 1A adaptor.
So how much higher 'A' i need for it to work?
You router needs atleast 0.5 A and battery takes 1 to 2 Ampere while charging from low. So try using a 3A changer. If your cells are of good quality you should get a good backup with this capacity.
Hi very useful tutorial. Something is wrong for me the input led is always on, also without external power supplier plugged, and can't solve. In the schematic they are only two resistors of 680 ohm, but in the video I saw on the input led one more resistor in series. Could be this the solution? Ho much this third resistence? Some more suggestion to check? Thank you in advance
Hi Anto, connect the input led before the diode so that it will turn on only when charger is connected. And resistor is used for led only. You can use 680ohm to 1k ohm resistor.
I have used 2 on one side as I did not had a 680ohm so I have added 2 resistor in parallel to achieve the resistance. Hope this helps!
@@DIYCommunity thanks. It means I've to connect the p+ of the bms between the input Plug and the diode?
Hi, connect diode to positive line inbetween charger port and P+ of BMS, connect the led positive terminal before the diode (charging port side) with a resistor in series. This will make the led to glow only when connected to charger.
I recommend you to keep the charger connected and no harm as BMS will take care of over charging.
@@DIYCommunity Thanks now it works fine. I also added one more output port, so I can supply the Of pod as well.
You are welcome.
All clear. But it would be great to know the reasons for using Ohm Resistor and the Diode?
Hi, Resistors are used to control the current going to led and Diodes are used to stop the back current. As both input and output has same dc jack there are chances of connecting it wrongly. Diodes will protect the wrong flow and safe guard this ups. Hope this clears your doubt.
@@DIYCommunity Yes. Thank you!
Is it necessary to connect a XL6009 Module with 3S 10Amp BMS?
Can I make a UPS with the same process and same materials but except the XL6009
Hi XL6009 in circuit is to maintain a constant output of 12v to router even when battery is low. Kindly test your router whether it runs on low voltage with same performance without this step up booster module.
Can we use 2 Li ion cells - 7.4v battery pack and boost it to 12v ? Please reply.
Thank you
Hi, Yes you can use 2 cells. Choose a charger of 8.4volt and 2Sbms board. You can also use a 9v adapter to and connect a diode to reduce its voltage to 8.4v.
Although the circuit seems functional, the truth is that it is not well designed. The switching between the adapter and batteries should be done using relays and thus eliminate the diodes from the circuit. The booster should only be used to supply approx 13v to the BMS as 12v is not enough. In addition, using the booster to compensate the diode drop and powering the entire system generates an unnecessary loss of efficiency.
The other thing is to buy a module that is responsible for automating the commutation between the adapter and the batteries that, in fact, use relays.
Appreciate your feedback. Will design a ups with relay and test the difference, performance and efficiency.
The BMS discontinue the current flow as soon as hits below 11.5volts on the batteries. I have 6 18650 li_ion batteries connected to a 10A BMS 3S. The backup time is only a few minutes on a 12v 1amp internet modem. Please advise on how to increase the backup time. thank you
Hi, here the battery is not charged full. It requires 12.6 volt to attain full charge. Replace the adaptor and replace the input diode to a schottky diode which allows more voltage and current to pass through.
@@DIYCommunity hi. Thank you for responding. Actually, Even after the battery is charged to 12.6 volts, still, the BMS cutoff the power after hitting 11.49 volts. (The over-discharge feature.) 12.6v max and 11.49v min is not enough of a window. I’d rather have the lower limit down to 9volts maybe? 12.6v max and 9volts mim for the BMS’s over charge and over discharge. Please advise
Hi, i don't think there is an option to adjust the cut off voltage in BMS. What I remember was a 3S BMS has a cut off of 10v. Will check and come back on this. If you know any method to change the cutoff pls share it here.
Sir can we use CA-2596 Dc-Dc in this circuit instead of XL-6009 ??
DC-DC is step down converter not boost converter
what if there is a high voltage from direct power supply?
And also, I have a CA-6009 Boost converter, can I use that instead of XL-4009?
Hi, you can use any step up boost converter.
Dear. Is 12v adapter is enough to charge 3s battery pack? Because this battery pack requires 12.8 v to be fully charged
Hi, yes to fully charge it needs 12.6 to 12.8volt.
Bhai kya chhoti battery ki jagah Par pc UPS ki battery use nahin kar sakta kya please reply batao 🙏🙏
looks like a small mistake in circuit diagram. input section you added only one diode to battery and another diode from battery. like series connection. but in video you added 2 diode in input in parallel.
hi my router gets very hot while uses .can we add a 5v cpu fan in this circuit pls
Hi, check for correct voltage you fed to your router. Normal Router will not heat up.