Nice work. I ve built many battery power boxes like this. A few tips: 1-Use a USB C to 3S charger. Simple cheap and universal. See Aliexpress 2-To secure batteries, use double sided tape and tie straps instead of hot glue - you dont want those batteries coming loose. Wrap battery in Kapton tape. 3-Do not let the batteries in series touch use spacers or insulation between 4-You do not need the diode on the output 5-Include a small LED battery voltage readout after the switch so you can estimate state of charge of the box. You can add a push button activation to reduce idle current loss.
@@tamer-H Some chargers will allow a backfeed into the charger. If you use a charge board the does not block (like a XL4015 -good choice BTW) or you direct connect like he did and you use for example a DELL laptop charger then you need the diode. I found out on my last build luckily my BMS was current limiting. If the charger is not plugged into AC it can backfeed - so you need to test that case.
My home router ran off a 9 volt DC plug, so I set up an old RV battery to provide 12 V for emergency lighting and radio communications, and a voltage regulator to get 9 volts to run the router. These things are now very easy to do with cheap DC to DC modules.
This is not "AUTO SWITCHING" power supply. it is constant power supply. Both the Battery & the 12 volt adapter are in parallel without any switching circuit.
This is a good idea, tested and its working , he did the right thing , and yes it is acting like dc ups. The only draw back in this system is the dc to dc voltage regulator it does not include a protection at the output from a voltage drop, thus a voltage drop can cause the router to mulfunction.
You got great ideas,d only lacking is that there is no charge indicator. But it'll make do because In my place brownouts are frequents, it's really good to have a backup. Thanks 4 the idea.
I've powered a ADSL/VDSL router using a car battery or a 12V 7200mAh battery (commonly used for alarms or UPS systems). In certain cases, routers don't actually need the full 12V to operate, as they internally step down to 3.3V. This means that in some instances, you can run them on 5V (just make sure you have enough amps - power banks yes, usb ports no). Now just need a UPS for Starlink 🤔
This is good use of a boost board to keep the voltage stable when the cells are running low. A nice improvement could be doubling or tripling up the number of cells, still using the same BMS to give a longer running time.
look that you had to add 0.6 V to the out to cause of the drop tension of the diode, so it had to be 12,6 V. Good video, very interesting project. Thanks for to have made it
The diode you use at the output cuts 0.7 volts, the 12 level you set decreases to 11.3, so you should set it to 12.7 so that you have a 12 volt output. Greetings, colleague.
Similarly, the homemade battery pack is supposed to charge to 12.6V but he put a diode between a 12.6V power supply and the BMS, so it will charge to somewhat less. But maybe that'll help the batteries last longer?
You should have used a charge controller dc-dc board on the input instead of that boost converter on the output (or both). A slight variation in output voltage is usually not a problem and your router will handle that, but your cheap bms will absolutely not handle cell over voltage nor thermal runaway. A bms is NOT a charge controller but a safety device supposed to protect your battery in case of charge controller failure, which your device always have (as there is none).
I had already made it,, sim WiFi bsnl sim WiFi usb sim dongle, with inbuilt makes power Bank, with 8 cell 18650 with power Bank module,, backup so good ,, I mean 24, hours or 1day, with out charging,, and with charging no problem!
I've used a tp-link m5350 coupled with a smart plug. It keeps the mobile hotspot from overcharging the battery by scheduling when it needs to charge. Online 24/7, it ran for a year.
Nice video. Not sure if already commented, but maybe either move the LED it output side, or add one there. Seems like knowing there's power at the output, might be more useful than knowing there's power at the input.
as i studied your circuit theres no auto switching happening here because the battery is running while charging all the time, so it acts like a power bank that plugged into the charger. but i think this is safe as long as the BMS wont fail.
A few dry cells and 2 diodes are much simpler. OR-ing the primary and secondary supplies together to the router through the diodes is a good short-term solution.
Pra mim foi uma ótima ideia, dependendo da queda de energia, roteador com cabo coaxial, funciona mesmo sem energia, desde que o roteador esteja ligado😂
so they say lithium batteries dont like being charged at 100% all the time, in most cases this battery is going to be completely full. are the batteries you using more tailored to this kind of setup, or is it just acceptance that they will need on going maintainence?
@@homemade_101u should have skipped using diode specially in input. Coz it will drop around 0.6 volt for no reason. Im using the simiar setup but without diode also without boost converter for router. Im using another similar setup with boost converter for my wdNAS(coz here stable voltage is required) but charging with 12 bolt adaptor directly. So each cell will get around 4volt , which is like 80% of the capacity and also the life of battery will be much longer.
Good idea, however there is room for improvement since there is no charging current limiter on this set up, so the charger will have to have a current limiting feature otherwise it will overheat pretty fast when batteries are low on charge.
Where's the ats Or simply relay? This is more towards a power bank 😂 It can be called Ats if you divide two power supply lines directly to the device and one path passes through the 12v BMS before it reaches the device Excited about the next content 🎉
I have created the same but when connected with power and output. But when I have checked i get that it is actually taking power from battery when the power is available.
In this way, the batteries will not last long because they will both charge and discharge. You need to use a relay. When there is city electricity, only the batteries need to be charged. When the city electricity goes out, the relay needs to shut down and feed from the batteries.
Bu şekilde piller hem şarj hem deşarj olacağı için uzun ömürlü olmaz. Role kullanmanız gerekiyor. Şehir elektriği olduğu zamanlarda sadece pillerin şarj olması gerekiyor. Şehir elektriği gittiği zaman role kapanıp pillerden besleme yapması gerekiyor.
This is almost exactly the same as the one Huawei used to bundle with their routers in my country, except it only used 2 cells and they didn't boost the voltage on the output but it worked basically the same way.
thus the battery stops charging when its full and the modem draws power from power adaptor and then when the power cuts that's the time modem uses battery power?
So if you have an area wide power outage the ISP will be down too, unless they have a backup system. This device would be okay if it's just for an inhouse network or if you can link your router to a cellphone and use the cell phone as your internet connection and link it to the router to keep your inhouse network connected to the internet... Interesting project...
Cool. I was going to build something similar but then someone went and made Router Backup UPS for R299 ($16) that lasts for up to 12 hours on my 12V dual band WiFi router, supplies, 5V, 9V and 12 V and can do POE stuff. Oh well. Anyways, I bought a few.
I have done the same connection like yours but my led indicator is always running What to do I have put resistor and diode in + like you have shown What to do?
Hi is a nice aproach to make an DC UPS but I have somes questions to even get better the design 1 the dc-in adaptor-charger is the ones it comes with the router? the voltage is enough to charge the batpack? 2 why is neccesary the boost module, the arrange og the 18650 is not enough 4.2*3=12.6V (real 3.7*3 = 11.1V is for this reason? or even is acting as a fixed 12v out regulator?) 3 in this arrange the BMS is always on chargin the 18650?, when dc-in adaptor is on and the batery is full charged who is really provide the dc ouput ? both dc-in adptor and battery
@green 3.7v is nominal voltage- full charge voltage is 4.2v . Soo 4.2v x 3 =12.6v This is for Li ion battery for lifpo4 battery its 3.2 nominal and 3.6 full charge voltage.
You should have used a 12v regulator if the modem is running on 12v. The buck converter isnt a regular. The input voltage will varry is the batteries charge and discharge and the output of buck converter will also vary
I have a battery of 5000-5000-5000 mah total 15000 mah 3.7v 18650 number so whichever bms module should i use 10A or 20A and my router adapter is 12v 2.5A does it will work?
@@homemade_101 I don’t get it!! I was saying that in this project have you included the possibility, for example, of recharging the battery if it is discharged?
Well, yeah, the adapter charges the battery pack, and that combined voltage is regulated and outputted. By combining sources, there's no interruption. If the battery is at 9V, the power brick will output 9V, because it's a dedicated charging brick and has current limitation.
Lithium-ion batteries can discharge down to 2.5V/cell = 7.5V for 3 batteries. 7.5V is way too little to run a 12V device. Also, while charging the voltage is a bit higher, this protects against it even though it's unlikely to cause damage.
Linear voltage regulators, like the 7805 regulator, require a higher voltage to work. A 7812 works properly from 14 to 30V. Also, efficiency is lower with a linear regulator.
@@homemade_101yes i understand the input is 12.6v but what the purpose of add booster after the bms? can't you just solder the bms directly into the dc female output?
@@masqariemganteng3292 entiendo que sirve como capacitancia así cuando se va la luz el modem no se apaga o reinicia sino que directamente se mantiene sin cambios
What's the function of the diodes on this setup? For reverse voltaje? Also, you need to adjust your output voltaje +0.7v, because the diode has 0.7 gate voltaje
Charging voltage 12.6 v for 3S. You are adding a diode at power input , so charger used at input should have 13.2 volts output . Similarly diode at output , boost output adjust must for 12.6 , so that final output is 12v dc .
Adjustable DC Voltage and current Power supply : th-cam.com/video/vUOBuOsQ_0g/w-d-xo.html
wvdygdjggxugueyggutu üyeyi yy 🙈ye 🙄
@@homemade_101 руки помой чёрные
❤
@@homemade_101 what is 2A diode please explain
its over hit
Nice work. I ve built many battery power boxes like this. A few tips:
1-Use a USB C to 3S charger. Simple cheap and universal. See Aliexpress
2-To secure batteries, use double sided tape and tie straps instead of hot glue - you dont want those batteries coming loose. Wrap battery in Kapton tape.
3-Do not let the batteries in series touch use spacers or insulation between
4-You do not need the diode on the output
5-Include a small LED battery voltage readout after the switch so you can estimate state of charge of the box. You can add a push button activation to reduce idle current loss.
thank your advice brother
@@louisbellanca9293Why was the diode put on the income
@@tamer-H Some chargers will allow a backfeed into the charger. If you use a charge board the does not block (like a XL4015 -good choice BTW) or you direct connect like he did and you use for example a DELL laptop charger then you need the diode. I found out on my last build luckily my BMS was current limiting. If the charger is not plugged into AC it can backfeed - so you need to test that case.
Also, you'd then have to re-adjust your buck/boost converter to compensate for the 0.6V forward diode loss as well.
My home router ran off a 9 volt DC plug, so I set up an old RV battery to provide 12 V for emergency lighting and radio communications, and a voltage regulator to get 9 volts to run the router. These things are now very easy to do with cheap DC to DC modules.
yes. thank you
@@homemade_101 A 😑
\|/📱
|
/ \
❤
This is not "AUTO SWITCHING" power supply. it is constant power supply. Both the Battery & the 12 volt adapter are in parallel without any switching circuit.
@@kchandrakant50 exactly bro
so?
@@m_________23212 it will not last long
It's Called UPS
exactly
This is a good idea, tested and its working , he did the right thing , and yes it is acting like dc ups.
The only draw back in this system is the dc to dc voltage regulator it does not include a protection at the output from a voltage drop, thus a voltage drop can cause the router to mulfunction.
thank you so much.
Soldering Like A Professional ❤
thank you bro
without shrink tube
So true. I learned just as much watching the soldering technique as I did the electronics. 😋
You got great ideas,d only lacking is that there is no charge indicator. But it'll make do because In my place brownouts are frequents, it's really good to have a backup. Thanks 4 the idea.
welcome
I've powered a ADSL/VDSL router using a car battery or a 12V 7200mAh battery (commonly used for alarms or UPS systems). In certain cases, routers don't actually need the full 12V to operate, as they internally step down to 3.3V. This means that in some instances, you can run them on 5V (just make sure you have enough amps - power banks yes, usb ports no). Now just need a UPS for Starlink 🤔
Starlink good yes it is no need
This is good use of a boost board to keep the voltage stable when the cells are running low.
A nice improvement could be doubling or tripling up the number of cells, still using the same BMS to give a longer running time.
look that you had to add 0.6 V to the out to cause of the drop tension of the diode, so it had to be 12,6 V.
Good video, very interesting project.
Thanks for to have made it
welcome
The diode you use at the output cuts 0.7 volts, the 12 level you set decreases to 11.3, so you should set it to 12.7 so that you have a 12 volt output. Greetings, colleague.
it is not issue
@@huseyinozkaya2910 діод на виході взагалі не потрібен.
@@homemade_101 It is. Just increasing the voltage to 12.7 is the solution to that issue.
@@homemade_101 Maybe it works but it shows you didn't really know what you were doing.
Similarly, the homemade battery pack is supposed to charge to 12.6V but he put a diode between a 12.6V power supply and the BMS, so it will charge to somewhat less. But maybe that'll help the batteries last longer?
You should have used a charge controller dc-dc board on the input instead of that boost converter on the output (or both). A slight variation in output voltage is usually not a problem and your router will handle that, but your cheap bms will absolutely not handle cell over voltage nor thermal runaway. A bms is NOT a charge controller but a safety device supposed to protect your battery in case of charge controller failure, which your device always have (as there is none).
thnaks
@@niclas.lindstrom Can you make a tutorial?
He's using a special power adapter, with an output of 12.6V, for direct charging of 3S battery packs. So, this all works, and it will work safely.
I had already made it,, sim WiFi bsnl sim WiFi usb sim dongle, with inbuilt makes power Bank, with 8 cell 18650 with power Bank module,, backup so good ,, I mean 24, hours or 1day, with out charging,, and with charging no problem!
I've used a tp-link m5350 coupled with a smart plug. It keeps the mobile hotspot from overcharging the battery by scheduling when it needs to charge. Online 24/7, it ran for a year.
good
He usado los Boost Converter 3 años seguidos en equipos 12v sin novedad alguna. Gracias por el video.
thank you brother
That's a pretty cool setup. Thanks for sharing.
thank you brother.
Cuál son los componentes referencias?
Nice video. Not sure if already commented, but maybe either move the LED it output side, or add one there. Seems like knowing there's power at the output, might be more useful than knowing there's power at the input.
Good idea!
Amazing work brother!!!
thank you bro
as i studied your circuit theres no auto switching happening here because the battery is running while charging all the time, so it acts like a power bank that plugged into the charger. but i think this is safe as long as the BMS wont fail.
no
yes
Very good project👍
thanks
நல்ல செயல்திறன் Good performance
thanks
Good job and respect
thank you
Si el BMS toca la carcasa de la batería habrá una buena explosión. Es recomendable adherir un aislante. Mejor es prevenir que lamentar.
thank you. Sí, tiene usted razón. No los tengo ahora.
A few dry cells and 2 diodes are much simpler. OR-ing the primary and secondary supplies together to the router through the diodes is a good short-term solution.
thanks your
Diod no...?
I love this videos you make 😎❤️.. To me , it's very educational and really attractive ...
thank you
Good job, thanks for the idea and inspiration.
welcome enjoy.
NUMBER ONE FOR YOU ❤❤❤
thanks brooo
Fantastik work, you nice teacher
thank you
Very Nice Good job!
enjy. and thank you
With all those parts I would have added a 1$ battery holder case, would keep it servicable....
yes bro
I also liked the rubber clamp that you made to hold the board 😂 👌
thanks bro enjoy
That Good and Number one For You . Thanks You 🤔🤔🤔👍🤔🤔🤔
welcome bro
This is great but would it not be as easy to just have a small relay switch the auto switch over when power goes out
without rely cut off
Pra mim foi uma ótima ideia, dependendo da queda de energia, roteador com cabo coaxial, funciona mesmo sem energia, desde que o roteador esteja ligado😂
thanks
so they say lithium batteries dont like being charged at 100% all the time, in most cases this battery is going to be completely full. are the batteries you using more tailored to this kind of setup, or is it just acceptance that they will need on going maintainence?
I have mini ups but switching problem lag with light going.. router off and on again i have syrotech router cruzer ups 12.v
Пайка без флюса. Мастер с большой буквы.
thank your
Volt conection seting modem router.sterper stabler of signals control of dish
Rammstein and the new one is amazing thank goodness for that one is a good idea to
welcome
What was the need of diode at the output end?
Nice❤
thanks broo
Hi. Did you recheck the out voltage after you put that diode?
it is no problem.
@@homemade_101u should have skipped using diode specially in input. Coz it will drop around 0.6 volt for no reason. Im using the simiar setup but without diode also without boost converter for router. Im using another similar setup with boost converter for my wdNAS(coz here stable voltage is required) but charging with 12 bolt adaptor directly. So each cell will get around 4volt , which is like 80% of the capacity and also the life of battery will be much longer.
Good idea, however there is room for improvement since there is no charging current limiter on this set up, so the charger will have to have a current limiting feature otherwise it will overheat pretty fast when batteries are low on charge.
welcome
Where's the ats Or simply relay? This is more towards a power bank 😂 It can be called Ats if you divide two power supply lines directly to the device and one path passes through the 12v BMS before it reaches the device
Excited about the next content 🎉
ok
In places like india were can be lot of powercuts this will be a jem.
welcome
isn't the BMS going to deplete the batteries even when not in use?
I have created the same but when connected with power and output. But when I have checked i get that it is actually taking power from battery when the power is available.
🤔
На роутерах питание от 5 v до 24 v и разные разьемы, поскольку нет единого стандарта такая вещь для каждого заново.. Во вторых какой в этом смысл?
🤔
In this way, the batteries will not last long because they will both charge and discharge. You need to use a relay. When there is city electricity, only the batteries need to be charged. When the city electricity goes out, the relay needs to shut down and feed from the batteries.
Bu şekilde piller hem şarj hem deşarj olacağı için uzun ömürlü olmaz. Role kullanmanız gerekiyor. Şehir elektriği olduğu zamanlarda sadece pillerin şarj olması gerekiyor. Şehir elektriği gittiği zaman role kapanıp pillerden besleme yapması gerekiyor.
but tht way power will be interrupted
@@iiiiii-w8h By supporting it with a capacitor, power interruption can be prevented..
Or a direct path with P-Mosfet!
This is almost exactly the same as the one Huawei used to bundle with their routers in my country, except it only used 2 cells and they didn't boost the voltage on the output but it worked basically the same way.
thank your
thus the battery stops charging when its full and the modem draws power from power adaptor and then when the power cuts that's the time modem uses battery power?
power cut
Thanks for sharing, subscribed
thanks my friend
Hi which type of enclosure box(size..etc) did you use for this project ?
5x4x3 inch
@@homemade_101 ok
So if you have an area wide power outage the ISP will be down too, unless they have a backup system. This device would be okay if it's just for an inhouse network or if you can link your router to a cellphone and use the cell phone as your internet connection and link it to the router to keep your inhouse network connected to the internet...
Interesting project...
yes, your thinkin is good
Awesome👏
enjoy
Cool. I was going to build something similar but then someone went and made Router Backup UPS for R299 ($16) that lasts for up to 12 hours on my 12V dual band WiFi router, supplies, 5V, 9V and 12 V and can do POE stuff. Oh well. Anyways, I bought a few.
thanks bro
I have done the same connection like yours but my led indicator is always running
What to do I have put resistor and diode in + like you have shown
What to do?
680 ohm, led lb
@@homemade_101 I have used that resistor and diode but it is directly glowing does it will glow ?
@@izhanansari5032 You must have put the diode wrong, just reverse it and connect
Is it safe for batteries? I mean are they being charged 24/7 while dc is plugged?
no problem
thankssssssssssssssssssssssssssssssssss very nice project
enjoy
me sirve si mi router es de 12v a 3a?
couldent find a 2A Diode all there was either 1A or 3A can you tell any part or model number used?
ধন বানাইছেন ভাইয়া সেই হয়ছে😂😂
Can I use xl6009 instead of LM 6009
Where to add LED battery charged/empty indicator on this setup ??!
it is not have in
@homemade_101 maybe on plus minus on BMS out ??
Or Kya iske jagha 6 cells use kr sakte hai Bhai plz replay
use 3S bms. no problem
Is the modem going to have an UPS too.
yes good one
are you using cv n cc adaptor, if not will burn adaptor....
yes
Theow and rvert threwer to chanel boxes
What about the Back up time..how long does ut work..
7 hours
Thanks for the video.
Please i really need a reliable link that i can buy the parts because i love this project ❤❤
AliExpress is good
what if needed input as well output 19.5 v
12v
XL6009 DC-DC
12v to 19.5v
or other modules
@@a892728 thanks
What about 9volts dc? How do we make one for 9v instead of 12v.
Is output voltage 9V ?
Sir ap ka pass konsa kavya hi kitna praise mi milta hi
Is it okay to install an additional 3S active balance equalizer to improve the efficiency of the battery?
no problem
@@homemade_101 Thank you. I will try to copy this video. May I ask the size of the case you used?
5x4x3
Bhai 6 cells Mai Konsa diode or Konsa resistor use kare plz replay
no problem
VERY GOOD.
Thank you! Cheers!
Hi is a nice aproach to make an DC UPS but I have somes questions to even get better the design
1 the dc-in adaptor-charger is the ones it comes with the router? the voltage is enough to charge the batpack?
2 why is neccesary the boost module, the arrange og the 18650 is not enough 4.2*3=12.6V (real 3.7*3 = 11.1V is for this reason? or even is acting as a fixed 12v out regulator?)
3 in this arrange the BMS is always on chargin the 18650?, when dc-in adaptor is on and the batery is full charged who is really provide the dc ouput ? both dc-in adptor and battery
thank your advice bro
Bhai kya hum 4007 diode use kr sakte hai plz replay
1amp ki limit hai....1n54 series ke diod me 3amp ki limit hai.....hamara battery 4amp hai almost
que funcion cumplen los diodos? gracias
safety. short circuit
and how will you know if the battery is full or draining
this is good
My router and anu 12v should I use 1 booster?
yes. 12.6v input
I have the same junction box but lost the screw. What's the screw size of that box? Was it m3?
i think M4
01:05 3.7v * 3= 11.1v only, how 12v you getting
12.6v input. you can change out put voltage
@green 3.7v is nominal voltage- full charge voltage is 4.2v . Soo 4.2v x 3 =12.6v
This is for Li ion battery for lifpo4 battery its 3.2 nominal and 3.6 full charge voltage.
@@Untoldtruthshere thank you for your explanation
Very good
Thanks
You should have used a 12v regulator if the modem is running on 12v. The buck converter isnt a regular. The input voltage will varry is the batteries charge and discharge and the output of buck converter will also vary
Input voltage is 12.6v
Any recomended mAh battery?
this is recommended
I have a battery of 5000-5000-5000 mah total 15000 mah 3.7v 18650 number so whichever bms module should i use 10A or 20A and my router adapter is 12v 2.5A does it will work?
try. 10A ok. also 10A ok.
Please you can explain what diodo 2a , or link buy it,
check AliExpress 1N5408
@@homemade_101 in India not available delivery
@@homemade_101 1N5408 is 3A
very good excellente
thank you
Hi, is there any way to charge a discharged battery?
input 4.3V 2A
@@homemade_101 I don’t get it!!
I was saying that in this project have you included the possibility, for example, of recharging the battery if it is discharged?
Well, yeah, the adapter charges the battery pack, and that combined voltage is regulated and outputted. By combining sources, there's no interruption. If the battery is at 9V, the power brick will output 9V, because it's a dedicated charging brick and has current limitation.
Whats the purpose of voltage booster when it's already wired in series for 12v
Lithium-ion batteries can discharge down to 2.5V/cell = 7.5V for 3 batteries. 7.5V is way too little to run a 12V device. Also, while charging the voltage is a bit higher, this protects against it even though it's unlikely to cause damage.
Add Fully charged battery indicator 😊
okky
What if we don't use boost converter just use 12v regulator does that work!??
Input voltage is 12.6v
Linear voltage regulators, like the 7805 regulator, require a higher voltage to work. A 7812 works properly from 14 to 30V. Also, efficiency is lower with a linear regulator.
can we use 10 amp bms
yes
the output already 12 volt, why u need booster on it sir?
12.6v input
@@homemade_101yes i understand the input is 12.6v
but what the purpose of add booster after the bms?
can't you just solder the bms directly into the dc female output?
@@masqariemganteng3292 entiendo que sirve como capacitancia así cuando se va la luz el modem no se apaga o reinicia sino que directamente se mantiene sin cambios
What about voltage droping on diods?
It is no problem. 12.6v INput
Is the moduel is xl6009 or lm6009 ?
no problem. lm6009
What's the function of the diodes on this setup? For reverse voltaje?
Also, you need to adjust your output voltaje +0.7v, because the diode has 0.7 gate voltaje
yo can adjust and input 12.6v
Charging voltage 12.6 v for 3S. You are adding a diode at power input , so charger used at input should have 13.2 volts output .
Similarly diode at output , boost output adjust must for 12.6 , so that final output is 12v dc .
yes, thank you