I see so many comments that are requests to build "X,Y,Z". Please build this,, please build that........can you make a,,,,,, Just make videos as you can. I will watch them, because they're entertaining, and educational, and of my interest. Another nifty useable project.
Considering how many things run on 19 volts, I'm surprised these aren't more common. I think if I built one I'd use lead-acid batteries, but it'd be otherwise pretty similar. Thank you for all the details you put into these!
This video has given me the inspiration I needed for a project. I seen many different versions of DIY UPSs, but yours is the only one I have seen with multiple power inputs. I am looking to set up some small DIY wind turbines in my yard. I want to power my routers using the wind power. But, on days when there is not enough breeze to generate power, then I want to use the house power, and only switch to battery when both wind and house power fail. I will need to alter the design for the appropriate input/output voltages, but am hopeful that I can do this after seeing your design. I also want to change the fan to turn on when components get hot, rather than when switching to battery. Thank you for an interesting and inspiring project video.
In this project, Sorin used a Relay so that when the INPUT SIGNAL (12v power supply) is OFF, the LOAD (battery backup) turns ON. I think a FET only allows you to have the INPUT SIGNAL as ON, for the LOAD to turn ON. Someone correct me if I'm wrong but I think you can't do INPUT SIGNAL off, LOAD ON with a FET switch. th-cam.com/video/17vqLv508Uw/w-d-xo.html
Nice build, and your honesty about dead modules does you credit. Just wondering if there might be an opportunity in these plastic-box builds to include a temperature alarm and cut-off? Perhaps it could be your own designed module? Maybe JLPCB might send you them made-up perhaps ?? Keep up the great work!
Why don't you make an electronic load (for example a mini version) instead of using dummy load resistors? I think it would be another good idea for your channel. Keep up the great work! ✌
Very tidy and safe work as always. Alas I am too lazy to build anything like it , I just bought one of those 12v all in one ups boards on aliexpress ,stuck an old cell phone battery and plugged in my router. Luckily still works. Might explode in future :-) .
Hi I am very much impressed with your videos. Specifically for the safety part and the way you do the plan. Could you please make one video for lead acid battery based UPS ?
for 3s bms, which charging voltage would you recommend? i have the same observation with mine getting hot so i just simply disconnect it from the charger but the batteries ended to have different voltages
hi. it depends on the type of BMS board. if you use one with the same characteristics per cell like mine (max overcharge protection voltage 4.3V) you need a charging voltage of minimum 12.95V
I have a 12v router which is configured in the same way, an adapter and a 12v boost converter. the issue comes during the relay switching. when the power cuts the stored energy in the relay coil takes around 1 sec to discharge, i have also connect a diode in reverse polarity for the coil and a 2200uf capacitor at the output. the router restarts every time and i have to wait for it to reconnect. in your ups does the asus router restart during the relay switching?
hi. the router should not restart. the relay must switch on or off instantly. where is the relay powered from? the 12V adapter, or another circuit board? the energy stored in the coil does not delay the relay switching off. most likely there is a capacitor somewhere on the supply line to the relay and the energy stored in the capacitor keeps the relay powered for another second. you need to find that capacitor and remove it if possible, or replace it with a lower value. if that isn't possible, you can add a resistor in parallel with the relay coil, to increase the consumption and decrease the delay time. you can see in my video that the relay is clicking instantly, when I connect and disconnect the 12V plug.
I exprerienced the same issue as you while trying to build a UPS for my 9v Router. The switching of the relay was to slow and the router was restarting (( I also used a diode between pins of the relay, it helped but still switching was to slow. I also added 2x 2200uF and 2x 1000uF capacitors. and still the same problem, switch of the relay was not fast enough. even when hearing it, I noticed that relay was clicking much instantly... but still router reboot 2/3 times on 5, during my outage simulation... Relay is powered by main 12v input, because obiously we want relay to switch when there is outage on main voltage input...
@@Sorin_DIY Hi sorin, thanks for the reply😊. the capacitor connected at the output of relay has a rectifier diode before it. so the cap should not charge the coil in this way. there should be a capacitor inside the 12v adapter output. i am using the same adapter to power the router and the 12v relay. in the video you simulated power failure by removing the adapter connector. i tried the same way and the relay switches instantly. but, in the actual usage my adapter will be continuesly connected to the ups and hence the router restarts because the relay is still activate as low around 8 to 10 v but the router cannot work on such low voltage. is there a way we can switch using mosfets? this could solve the restarting issue😊
hi. the relay should switch off when the voltage drops under 7V. I suggest you bring the voltage closer to that value with 3-4 diodes in series with the relay coil, to about 8-9V. this way when the 12V is starting to decrease, because of a power outage, the relay will switch off faster. you can also add a resistor in parallel with the relay coil, to increase the load and drop the voltage faster. probably a 470ohm 3W resistor will work. this is one of the reasons why I added the diodes in series with the relay. I will look into this problem and test some more ideas in a future video.
@@Sorin_DIY Hi Sorin, i will try reducing the voltage for relay coil and also add a resistor. surely i will be waiting for your next amazing DIY videos.😊
Awesome project! I love the use of the battery holders (since we know these Li-ion batteries won't last forever) & appreciate your explanation of why each component is needed (as well as your attention to safety). I will definitely use this as a reference when I get the courage to build my own. I'm wondering about the fan though, since it's only on when the battery is draining & turns off when they are being charged. This seemed odd to me since: 1. the fan's additional load on the batteries will reduce the UPS' up time & 2. charging the battery generates heat, so wouldn't the fan be better on at that time to keep them cool. Perhaps you can add a simple temperature sensor to trigger a fan relay to turn the fan on when the enclosure gets too warm?
hi. there is a lot to talk about this project, that's why I made 3 parts. the fan is powered with 6V and 0.071mA = 0.426W. considering that the converter for the fan has an average efficiency of 90%, the fan is using 0.426W/0.9=0.473W. so it's using very little power from the battery pack. the battery pack has an energy of around 46.36Wh. so if I power only the fan, the battery will last for 98 hours. that's how little power the fan is using. in reality it will reduce the autonomy of the UPS with only 1 or 2 minutes, but it's needed to cool down all the converters inside. when the cells are getting charged, the CC/CV converter is delivering max 800mA, it has a heatsink on the IC, which gets only a bit warm. also there is natural cooling inside the UPS, when the fan is turned off. the warm air is going up and exits through the top side of the fan hole. this process draws fresh air through the bottom holes. the lithium cells don't heat up when they are charged, because the 800mA charging current is divided by 2 rows of cells connected in parallel, so each cell gets max 400mA. this is a charging rate of 0.25C, which is fine for any type of lithium cell. the fan and heat are not a problem for this project. the only problem is the switching time of the relay, it needs to switch very fast.
@@Sorin_DIY thank you so much for your detailed explanation & taking the time to respond. I appreciate this & will keep in mind that not everything needs to be actively cooled (like most of my projects) & many can get by with just passive cooling. Cheers!
Some of the DC-DC converters destroy themselves when attached to a battery. As when input power is removed, part of the circuit is backfeed from the battery via the feedback resistor divider. None of the modules I looked at had thermal cutout or proper overload protection. Apparently an extra Diode on the output of the DC-DC prevents the damage, but I've not tried. Batter off using a dedicated Lithium IOn battery charge module (eg TP5000 or TP5100), but then you need to feed them from 6V or less with another DC-DC.
hi. I've tried with different diodes at the converter output. 1-3A diodes get hot. I finally connected a 6A diode and it doesn't get hot, but the voltage drop is too much. I need minimum 17.25V to fully charge the cells. with a diode in series, the converter voltage must be set to minimum 18V, because the voltage under load drops too much with the diode. but when the charging is completed and there is no more load, the voltage jumps to 17.5 -17.6V and burns the battery indicator, which is connected to the BMS terminals, not the battery pack terminals. but the XL4015 IC is better and it didn't burned so far.
Hi, i made a ups for my router ,but router restarts when power on/off (mains) so, can i use the same setup u showed at 2:00 min . Can it fix that problem..
Hey bro I have made a 12v power bank for wifi routers But when i plug the charger the the charging starts but also the router must take the power from the charger not from the battery when the power comes it automatically should switch to adapter not at the same time from the battery can you help me plz
Because the diodes will decrease the voltage that powers the relay. so when there is a power outage, the voltage will drop faster from a lower value, so the relay will toggle faster to battery power.
@@Sorin_DIY That's cool I tried the same approach, but still my router restarts because the capacitors on the adapter still supply power for sometime, Likely i found a ATtiny85 in my box, so i think i can make a voltage divider and sense it with the microcontroller and switch the relay using some driver circuit. What do you think it will be more fast or i am still going to have somewhat similar results ??
Sorin, poti sa faci un video despre UPS-uri si sa ne sfatuiesti ce UPS am putea cumpara (cu baterie de masina) pt a proteja consumatori de socurile de curent din retea ???
Hello Sorin! I appreciate your work and you do a verry nice job! It is verry interesting and the way you explain is well done! Also, the jokes about us the romanians and the safety issues fit well, between the subjects. I have a question, what is the autonomy of the UPS? Toate cele bune / best regards, your subscriber, Valentin!
hi. with the ont and the asus router from the video the UPS will last a little over 3 hours on battery power. but with better lithium cells or a bigger battery pack the autonomy will be increased.
yes, you can use a step up converter to charge the cells, but it must have a CC-CV charging method. also to charge the cells, it's better to use the charger with the highest current output. I used 1mm gauge wire for the battery.
No, li-ion cells should not be connected directly to the charger. the cells must be connected to a BMS board with overcharge release protection feature. this type of BMS cuts the charging current when the cells are fully charged.
Sir can you build / make a powerful bass motherboard and adaptor, for adaptor can it be 20-25v 50+50 watt. ( not Bluetooth conection ). Will it be possible or impossible, sir I do love to play an electronic but only on dc Im teenager only I also very scare on ac. Sir I almost watch all your video your diy was very good and look awsome.
Sir, I watch your video all the time, today I need a help, like I want to make an ups for Asus 19v 2.5A router, if I put in 19v 2.5A router with 12v to 150 watt booster circuit, my ups Will it be successful? Please sir replay ??
hi. yes it will work, but the boost converter may heat up, you should check it periodically. if it heats up, you should use a more powerful boost converter with a bigger heatsink.
1. I was expecting you to use only the 19v adapter! You could have putted a stepdown after the 19v Imput to get the 12v Imput, this way only 1 adapter to use instead of 2. 2. I noticed that the relay is altering between Charging Battery Output to keep the devives ON. I builded a UPS for router , but the Relay was setted to alterned between 12v Original Charger Battery Backup. Not as your case. Unfortunatly, it did not work well because of small delay when the relay was switching, result: the Router was sometime rebooting 😒 Of course I added 4x 2200uF capacitor to fix this delay but still happening, I then dropped the project. Also you did not put a 1n4007 between the pins of the Coil of Relay ( Pin 1 & 4 of your schematic), it is very recommended, it limit the delay of relay ticking...
hi. 1. I wanted this to be an "offline UPS", so on main power only the chargers will power the devices. in the future I plan to make an online UPS with 2 or more outputs, that will have a single charger and several DC converters. 2. instead of a second relay I used diodes on the outputs. the primary relay on the battery is important. even if there is no load on the buck/boost converters, they still use a tiny amount of current from the battery, so the battery needs to be disconnected from these small loads, including the fan, unless there is a power outage. 3. I used a flyback diode for the relay on my project, you can see it in the videos, but I forgot to put it in the full schematic. thanks for mentioning this, I corrected the schematic. 4. I'm working on a part 3 video, with more explanations and improvements, including for the relay to shorten the delay and switch faster to battery power.
@@Sorin_DIY Thx you much, sure other than me will appreciate a Part 3/ Explanatory Video 😊 Anyway your projects are always greatly explaned, keep the great work, and hey where is your assistant?? Your cats did not want to participate in this project?? to complicatre for them maybe 😁
Chào anh , anh có thể làm lại video này 1 các chi tiết và đầy đủ hơn không ? Và nhớ để cả sơ đồ đấu nối nữa , chứ anh làm nhanh quá + không có sơ đồ nên tôi không thể làm theo được .
You are careful about accuracy of your project and your viewers money and time. I love your great sense of humour
I see so many comments that are requests to build "X,Y,Z".
Please build this,, please build that........can you make a,,,,,,
Just make videos as you can. I will watch them, because they're entertaining, and educational, and of my interest.
Another nifty useable project.
I just got my breakfast and got the notofication. Perfect timing! Great way to start a day
Considering how many things run on 19 volts, I'm surprised these aren't more common. I think if I built one I'd use lead-acid batteries, but it'd be otherwise pretty similar. Thank you for all the details you put into these!
I'm literally waiting for part 2 and here we go......! 🤪👍
Nice to see you back after a long absence. Keep up the great work.
This video has given me the inspiration I needed for a project. I seen many different versions of DIY UPSs, but yours is the only one I have seen with multiple power inputs. I am looking to set up some small DIY wind turbines in my yard. I want to power my routers using the wind power. But, on days when there is not enough breeze to generate power, then I want to use the house power, and only switch to battery when both wind and house power fail. I will need to alter the design for the appropriate input/output voltages, but am hopeful that I can do this after seeing your design. I also want to change the fan to turn on when components get hot, rather than when switching to battery. Thank you for an interesting and inspiring project video.
It would have been nice to use FETs instead of the relay. Great work. I love your work and have made a number units based on your projects.
In this project, Sorin used a Relay so that when the INPUT SIGNAL (12v power supply) is OFF, the LOAD (battery backup) turns ON.
I think a FET only allows you to have the INPUT SIGNAL as ON, for the LOAD to turn ON.
Someone correct me if I'm wrong but I think you can't do INPUT SIGNAL off, LOAD ON with a FET switch.
th-cam.com/video/17vqLv508Uw/w-d-xo.html
@@Existinginthespace you most definitely can
sunt singurul roman care stie de tine? :O great content man!
Mai sunt si eu! Dar nu de mult timp. 🤷♂️
Nu
I really enjoyed your videos. Thankyou for Good Entertainment and Sharing Ideas and Knowledge. Watching From Philippines.👋🇵🇭
8:20 That would definitely have made someone(Electroboom) very happy 😂😂
Nice, I am looking to build a ups now, your video is very helpful. Salutare from MD ;)
Finding money on the street..🙌🙌👏
Awesome video BTW like always
Thanks for another great video Sorin !
really enjoying the frequency of your uploads as of late
Si hop si partea a2-a. Fain proiect, mi-a placut. Sincer din tot proiectul mi-a placut termometrul DIY, face toti banii 🤣.
Sa vedem next project.
8:20 @ElectroBOOM almost happy!
Great video Sorin. I really enjoy your humour!
Nice build, and your honesty about dead modules does you credit. Just wondering if there might be an opportunity in these plastic-box builds to include a temperature alarm and cut-off? Perhaps it could be your own designed module? Maybe JLPCB might send you them made-up perhaps ?? Keep up the great work!
Congrats Sorin for your 100k Subs!
Why don't you make an electronic load (for example a mini version) instead of using dummy load resistors?
I think it would be another good idea for your channel. Keep up the great work! ✌
Great tutorial!. I would really love to see a video for 12volts ups with the same relay feature..
Very tidy and safe work as always. Alas I am too lazy to build anything like it , I just bought one of those 12v all in one ups boards on aliexpress ,stuck an old cell phone battery and plugged in my router. Luckily still works. Might explode in future :-) .
C’est excellent pour l’explication 👍✌️👏🏻
Hi I am very much impressed with your videos. Specifically for the safety part and the way you do the plan. Could you please make one video for lead acid battery based UPS ?
Didn't show up in my feed until today... 3 days later!
Can we have a follow up video about the money on the street?
😀 Great addition to the UPS videos! 👏
for 3s bms, which charging voltage would you recommend? i have the same observation with mine getting hot so i just simply disconnect it from the charger but the batteries ended to have different voltages
hi. it depends on the type of BMS board. if you use one with the same characteristics per cell like mine (max overcharge protection voltage 4.3V) you need a charging voltage of minimum 12.95V
@@Sorin_DIY yes indeed i measured each parallel and the third row is the highest at 4.23v. thanks for clarification
Hi Sorin, can you make the video for connection setups, how can i do connection the all modules...🙏🙏
I have a 12v router which is configured in the same way, an adapter and a 12v boost converter. the issue comes during the relay switching. when the power cuts the stored energy in the relay coil takes around 1 sec to discharge, i have also connect a diode in reverse polarity for the coil and a 2200uf capacitor at the output. the router restarts every time and i have to wait for it to reconnect. in your ups does the asus router restart during the relay switching?
hi. the router should not restart. the relay must switch on or off instantly. where is the relay powered from? the 12V adapter, or another circuit board? the energy stored in the coil does not delay the relay switching off. most likely there is a capacitor somewhere on the supply line to the relay and the energy stored in the capacitor keeps the relay powered for another second. you need to find that capacitor and remove it if possible, or replace it with a lower value. if that isn't possible, you can add a resistor in parallel with the relay coil, to increase the consumption and decrease the delay time. you can see in my video that the relay is clicking instantly, when I connect and disconnect the 12V plug.
I exprerienced the same issue as you while trying to build a UPS for my 9v Router. The switching of the relay was to slow and the router was restarting ((
I also used a diode between pins of the relay, it helped but still switching was to slow.
I also added 2x 2200uF and 2x 1000uF capacitors. and still the same problem, switch of the relay was not fast enough. even when hearing it, I noticed that relay was clicking much instantly... but still router reboot 2/3 times on 5, during my outage simulation...
Relay is powered by main 12v input, because obiously we want relay to switch when there is outage on main voltage input...
@@Sorin_DIY Hi sorin, thanks for the reply😊. the capacitor connected at the output of relay has a rectifier diode before it. so the cap should not charge the coil in this way. there should be a capacitor inside the 12v adapter output. i am using the same adapter to power the router and the 12v relay. in the video you simulated power failure by removing the adapter connector. i tried the same way and the relay switches instantly. but, in the actual usage my adapter will be continuesly connected to the ups and hence the router restarts because the relay is still activate as low around 8 to 10 v but the router cannot work on such low voltage. is there a way we can switch using mosfets? this could solve the restarting issue😊
hi. the relay should switch off when the voltage drops under 7V. I suggest you bring the voltage closer to that value with 3-4 diodes in series with the relay coil, to about 8-9V. this way when the 12V is starting to decrease, because of a power outage, the relay will switch off faster. you can also add a resistor in parallel with the relay coil, to increase the load and drop the voltage faster. probably a 470ohm 3W resistor will work. this is one of the reasons why I added the diodes in series with the relay. I will look into this problem and test some more ideas in a future video.
@@Sorin_DIY Hi Sorin, i will try reducing the voltage for relay coil and also add a resistor. surely i will be waiting for your next amazing DIY videos.😊
Superb ceea ce faci bravo chiar imi place ca ai o engleză super corectă înțeleg tot😅😉
Sir please make a an powerful 220v 50/60 hz inverter at home please
Awesome project! I love the use of the battery holders (since we know these Li-ion batteries won't last forever) & appreciate your explanation of why each component is needed (as well as your attention to safety).
I will definitely use this as a reference when I get the courage to build my own.
I'm wondering about the fan though, since it's only on when the battery is draining & turns off when they are being charged. This seemed odd to me since:
1. the fan's additional load on the batteries will reduce the UPS' up time &
2. charging the battery generates heat, so wouldn't the fan be better on at that time to keep them cool.
Perhaps you can add a simple temperature sensor to trigger a fan relay to turn the fan on when the enclosure gets too warm?
hi. there is a lot to talk about this project, that's why I made 3 parts. the fan is powered with 6V and 0.071mA = 0.426W. considering that the converter for the fan has an average efficiency of 90%, the fan is using 0.426W/0.9=0.473W. so it's using very little power from the battery pack. the battery pack has an energy of around 46.36Wh. so if I power only the fan, the battery will last for 98 hours. that's how little power the fan is using. in reality it will reduce the autonomy of the UPS with only 1 or 2 minutes, but it's needed to cool down all the converters inside.
when the cells are getting charged, the CC/CV converter is delivering max 800mA, it has a heatsink on the IC, which gets only a bit warm. also there is natural cooling inside the UPS, when the fan is turned off. the warm air is going up and exits through the top side of the fan hole. this process draws fresh air through the bottom holes. the lithium cells don't heat up when they are charged, because the 800mA charging current is divided by 2 rows of cells connected in parallel, so each cell gets max 400mA. this is a charging rate of 0.25C, which is fine for any type of lithium cell.
the fan and heat are not a problem for this project. the only problem is the switching time of the relay, it needs to switch very fast.
@@Sorin_DIY thank you so much for your detailed explanation & taking the time to respond.
I appreciate this & will keep in mind that not everything needs to be actively cooled (like most of my projects) & many can get by with just passive cooling. Cheers!
Some of the DC-DC converters destroy themselves when attached to a battery. As when input power is removed, part of the circuit is backfeed from the battery via the feedback resistor divider.
None of the modules I looked at had thermal cutout or proper overload protection.
Apparently an extra Diode on the output of the DC-DC prevents the damage, but I've not tried.
Batter off using a dedicated Lithium IOn battery charge module (eg TP5000 or TP5100), but then you need to feed them from 6V or less with another DC-DC.
hi. I've tried with different diodes at the converter output. 1-3A diodes get hot. I finally connected a 6A diode and it doesn't get hot, but the voltage drop is too much. I need minimum 17.25V to fully charge the cells. with a diode in series, the converter voltage must be set to minimum 18V, because the voltage under load drops too much with the diode. but when the charging is completed and there is no more load, the voltage jumps to 17.5 -17.6V and burns the battery indicator, which is connected to the BMS terminals, not the battery pack terminals. but the XL4015 IC is better and it didn't burned so far.
Hello friend,
How did you make the amp and volt meter (I saw it on 5:19 in your video)
Thanks
hi, I made a video about it but it's on my Patreon page.
Make a biger ups for computer pls pls.
I think that this is the next step!!
Wonderful, man!
You should design everything on one board and sale the gerber. It will be very interesting doing SMD's.
hi. Thank you for the suggestion. now I'm working on a gerber file for the relay board and other small components. it will be free to download.
How can i check 3p 20A bms balance diagram
excellent idea and nice design.
Creative video, keep it up, thanks for sharing :)
We need part 3 with QC 4.0 and switching over MOSFET
As well as charger for this
I'm gathering parts to make a better UPS soon, with a bigger LiFePO4 battery, higher output power and better features.
@@Sorin_DIY waiting 😁🔥🔥
Hi, i made a ups for my router ,but router restarts when power on/off (mains) so, can i use the same setup u showed at 2:00 min . Can it fix that problem..
hi. it depends on what components you use. but a capacitor on the output will probably help.
@@Sorin_DIY voltage of capacitor did matters!. Can i use a 1000uf 16v capacitor and in4007 diode.
Hey bro
I have made a 12v power bank for wifi routers
But when i plug the charger the the charging starts but also the router must take the power from the charger not from the battery when the power comes it automatically should switch to adapter not at the same time from the battery can you help me plz
Thanks for the video my only question is why you added 3 1N4007 in series in the 12V powerline that goes to the relay coil ?
Because the diodes will decrease the voltage that powers the relay. so when there is a power outage, the voltage will drop faster from a lower value, so the relay will toggle faster to battery power.
@@Sorin_DIY That's cool I tried the same approach, but still my router restarts because the capacitors on the adapter still supply power for sometime, Likely i found a ATtiny85 in my box, so i think i can make a voltage divider and sense it with the microcontroller and switch the relay using some driver circuit. What do you think it will be more fast or i am still going to have somewhat similar results ??
Can you make DIY amplifier?
Sorin, poti sa faci un video despre UPS-uri si sa ne sfatuiesti ce UPS am putea cumpara (cu baterie de masina) pt a proteja consumatori de socurile de curent din retea ???
Hello Sorin! I appreciate your work and you do a verry nice job! It is verry interesting and the way you explain is well done! Also, the jokes about us the romanians and the safety issues fit well, between the subjects. I have a question, what is the autonomy of the UPS? Toate cele bune / best regards, your subscriber, Valentin!
hi. with the ont and the asus router from the video the UPS will last a little over 3 hours on battery power. but with better lithium cells or a bigger battery pack the autonomy will be increased.
It still have some space so you can add more batteries in it.
"Because I edited the video" Classic! LOL
Wow I have the same DIY heat tester...
LLAP
yeah that DIY heat tester is very popular plus it is very cheap 😋
Very good
The schematic diagram not available in the description
Full schematic: i.imgur.com/06PXQpz.png
@@Sorin_DIY image is not available. Please update the link . thanks
Can u make how to boost bass in speakers.please take up this activity.please
Awesome project. I'll try to make an ESP8266 5mbps wifi extender with 1 cell 18650 ups.
Does the constant current, constant voltage Buck converter can charge the cells with only 12v input ?
no.
Can i use 12v input with step up converter to charge battery? Also, what gauge wire do you use to connect the batteries?
yes, you can use a step up converter to charge the cells, but it must have a CC-CV charging method. also to charge the cells, it's better to use the charger with the highest current output. I used 1mm gauge wire for the battery.
Thanks a lot for this project , how long does it goes with batteries ?
the autonomy is around 6 hours, depending on the current consumption of the devices.
Nice work!
dimensions for the build as i dont have access to such boxes locally and have to order it online
via amazon
Hello Sorin,
Can this support a router with power rating of 12V 5A?
no. you need a different design for 5A.
Yes new video
hey ! Sorin Why Fan is not working ??
the fan is activated only on battery power
It is safe for Lithium batteries to be connected to charger, 24/7?
No, li-ion cells should not be connected directly to the charger. the cells must be connected to a BMS board with overcharge release protection feature. this type of BMS cuts the charging current when the cells are fully charged.
Please make a portable laptop power bank
Great work
Love you again
Sir can you build / make a powerful bass motherboard and adaptor, for adaptor can it be 20-25v 50+50 watt. ( not Bluetooth conection ).
Will it be possible or impossible, sir I do love to play an electronic but only on dc Im teenager only I also very scare on ac. Sir I almost watch all your video your diy was very good and look awsome.
🤣🤣🤣🤣 "Because I edited the video"
Awesome project
Please share schematics
hi. I added the schematic in the video description.
Sir, I watch your video all the time, today I need a help, like I want to make an ups for Asus 19v 2.5A router, if I put in 19v 2.5A router with 12v to 150 watt booster circuit, my ups Will it be successful? Please sir replay ??
hi. yes it will work, but the boost converter may heat up, you should check it periodically. if it heats up, you should use a more powerful boost converter with a bigger heatsink.
can you plz make a same video on
same project with only 12v output supply
😁
You are good
Diode is getting hot
Price Kitna
8:20 electoboom 😂😂😂
1. I was expecting you to use only the 19v adapter! You could have putted a stepdown after the 19v Imput to get the 12v Imput, this way only 1 adapter to use instead of 2.
2. I noticed that the relay is altering between Charging Battery Output to keep the devives ON.
I builded a UPS for router , but the Relay was setted to alterned between 12v Original Charger Battery Backup. Not as your case.
Unfortunatly, it did not work well because of small delay when the relay was switching, result: the Router was sometime rebooting 😒
Of course I added 4x 2200uF capacitor to fix this delay but still happening, I then dropped the project.
Also you did not put a 1n4007 between the pins of the Coil of Relay ( Pin 1 & 4 of your schematic), it is very recommended, it limit the delay of relay ticking...
hi. 1. I wanted this to be an "offline UPS", so on main power only the chargers will power the devices. in the future I plan to make an online UPS with 2 or more outputs, that will have a single charger and several DC converters.
2. instead of a second relay I used diodes on the outputs. the primary relay on the battery is important. even if there is no load on the buck/boost converters, they still use a tiny amount of current from the battery, so the battery needs to be disconnected from these small loads, including the fan, unless there is a power outage.
3. I used a flyback diode for the relay on my project, you can see it in the videos, but I forgot to put it in the full schematic. thanks for mentioning this, I corrected the schematic.
4. I'm working on a part 3 video, with more explanations and improvements, including for the relay to shorten the delay and switch faster to battery power.
@@Sorin_DIY Thx you much, sure other than me will appreciate a Part 3/ Explanatory Video 😊
Anyway your projects are always greatly explaned, keep the great work, and hey where is your assistant?? Your cats did not want to participate in this project?? to complicatre for them maybe 😁
Really cool Sorin!
Q: Shouldn't the caps rated to twice the actual voltage for good compliance?
the capacitors need to be rated at a higher voltage value than what they are powered with, but not necessary twice the value.
what is your cat's name?
Ares (the God of war) :) or short - Ari
@@Sorin_DIY nice
very very good! :)
Great
Nice video....
Hi ""
plz 1.video dc steeper motor genarator.. video
Chào anh , anh có thể làm lại video này 1 các chi tiết và đầy đủ hơn không ? Và nhớ để cả sơ đồ đấu nối nữa , chứ anh làm nhanh quá + không có sơ đồ nên tôi không thể làm theo được .
goodboy
Wouldn't be cheaper just to buy a UPS
Mehdi i love Mehdi 🤣
good, give me 1 u ups 12volt for me
Aaaaaaaaaleluia 😆
My cat help me during my project but I have not TH-cam channel .
14:04 Lmaoo
And then I decided to just....only watch the videos. Too complicated for my small brain.😑😑😑😑
traduction?
Merci!!!! ^^