Active balancers - are they any good? + testing a battery tester

Hello guys!
I ordered some new components for future projects and I will test them in my next videos. Today I will test some active balancers and a battery monitor/tester.

A big THANK YOU to all my patrons, especially to: Max Rice, Jacek, techge, Anthony Ortenzi, John.

If you try to build devices similar to mine and need help, I will answer your questions on Patreon.

Components list:

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[TD_TD-TD_TD]

Hello, I just wanted to say, the fact that you take the time to read all our comments is truely awesome thank you so much

[PhG]

Nice and interesting video. Usefull information, looking forward to see your next project.

[hydrolisk]

Must have more Sorin content!!! Love all your videos! Keep up the good work!

[radius.indrawan]

i think to put in a TP4056 to the middle cell is a brilliant idea, Sorin. If we set the charge rate below 500mA, i don't think it will destroy the cell because the active balancer will transfer some of the energy to other cells and TP4056 will stop the charging if the middle cell reached 4.25v or so.
Would you mind to test it again, letting TP4056 + active balancer to fully charge the pack, please? I think some of us viewers will find it interesting to watch. 😉

[DazCreeper]

You sir are to blame for my DIY addiction. You were the first DIY guy I started watching on YouTube some months ago, maybe even a year. My brain hurts and I am confused 95% of the time but I like it a lot. I want to become an electrician in the near future but I want to learn and practice more before applying to a job because I don't want to connect two wires and leave my town without electricity. Thanks for all of the content, ideas and commentary, really appreciate your work!

[casper]

Great video ! It's almost 100 k subs I have learned a lot from your videos and i hope I will learn a lot more in the future :D

[asifabbasi]

Excellent very nice first time i understand lithium ion battery active balancer thank you so much for the great video👍👍👍

[caskwith]

Those active balancers are very good. I used one to save a cordless tool battery from being scrapped.

[anxiety]

The check engine ligth got me laughing so hard 😂

[FayanG]

Your Very Near 100K Subscribers. Congratulations 🎉

[tcirit]

Thanks a lot Sorin! Could you make a video for the old laptop battery BMS which how could we use them for our diy battery packs?

[tophlaw]

Thank you for another wonderful info dump in the world of multi-cell battery charging. It is greatly appreciated (my 18650s will definitely benefit from this)!

[ronryandechavez]

thank you, I will buy this balancer to help my bms

[BeezyKing]

Interesting stuff, that cat had me laughing, cat be like "pet me human!"

[heyidiot]

Cue the Star Trek theme: 7:16 _"...Where No (92% men, 8% women) have gone before!"_

[jquanseer]

Cool video bro! Will have to add this to the list.

[massimon]

I look forward to your LiFePO4 video. It will be very interesting

[ciocrazvan]

8:22 Correction: You will never distroy a cell from a pack if you charge only one cell while the active balancer board is present!

[whatmust]

Active tester is always good and better than the passive one especially for the home built one. I know well as i have built 14s100p for years for my solar system all from recycle battery. When used batteries are used it is a guarantee to always have cell out of balance; active balance will prolong and increase capacity of cells pack.

I do not use these small active balancers as they take forever to balance a large pack. 100 cells in parallels is NO What i use is the programmable with bluetooth phone app. for monitor and adjustment that can do 4 A all the time regardless of cell voltage difference. Surprisingly it does not cost that much more than the flying capacitor type.
Best of all it works excellent and always balance quickly live during use both charge and discharge mode.

I am sold on the importance of a good active balancer especially on a home built large battery pack from recycle battery. If it can prolong on recycle battery that has end of life already imagine how prolong it will do to the new or little used cell pack.

It is a worthwhile investment and i paid under $100 that can do up to 16 S.

[omartahir]

Make us a power bank to run a computer