Top Balancing LiFePo4 Cells using a low cost benchtop power supply.

Top Balancing LiFePo4 Cells using a low cost benchtop power supply. 2021-05-30

Thanks for putting this together!
Excellent, this is very -very helpful! I love Will's videos, they're what got me here. In addition, I need this kind of methodical step by step tutorial to really help it sink in. Also, this gives me something that I can easily follow when I get my cells and assemble my battery. Many thanks.
You have put together a lot of valuable resources for this community! Thank you!
Legendary!
This is very useful for my cells once I receive my power supply
Spectacular resource. As I am in the process of upgrading my battery bank to LiFePO4 I feel like this is better than gold. Well, as it should be. It’s information I really urgently need! The most valuable commodity in the world! Right?
Thank you, very well explained.
Definitely helpful
very help dude, thanks for going to all that effort for all of us. budding lipo builders
Very nice! Only one appreciation, maybe is my fault, but when precharging the cells (wired in series) the first cell with the positive connected to the source is getting 3,65 pretty before the others (the others are at 3,40), when the power source is of, all the cells are at 3,40. I'm doing something wrong?!
FilterGuy
FilterGuy
No..... You are not doing anything wrong. We know the cells are not ballance and one will hit 'full' first. It just means that cell is further out of balance than the others. It also means that once you put them in parallel, it will take longer for them to get up to 3.65 because the other cells are not as well pre-charged.

Some folks will say that .25 volt difference is too great to put them in parallel.
Personally, I would not worry about it. However, if you are concerned, start top balancing the other cells till they get up to 3.5 or so and then add the last cell in.
Thank you for taking the time to teach us yet again! This makes sense to me!
OUtstanding!
Great information! I will be using this tutorial when top balancing my batteries.
Thanks
... THANKS .... :)
HOLY CRAP!!! This is AWESOME! I could not have found this at a better time as I am looking for help on doing exactly what you describe here. I am now going to order my variable DC power supply right now. I'll look at the power supply you recommend and compare it to what I am considering.

By the way, I like the Alfred E. Neuman avatar.
Excellent how to for beginners. You can't go wrong if you follow the directions to the letter.
Great tutorial, thank you. This is exactly the way I do it and advise people to do. I wrote a similar tutorial in french and was asked to translate it in English - no need anymore, I just point to yours.
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