Hello guys, I was looking for a cheap active balancer for my diy 18650 power wall I'm working on. Is a small system around 4kw and 7s (29.4v). Most cheap balancers I found only start balancing at 4.18 - 4.2v and I prefer not to fully charge my cells. I'll like them to be around 80 - 90% state of charged. I'm using a 40A 7S BMS, it works well for my application but the balancing current is too low (100ma) and it only starts balancing when fully charged. I'm looking for an active balancer than can balance the cells at any voltage.
I found this on AliExpress "DYKB 3S 4S 6S 7S 13S 16S Li-ion Lipo Lifepo4 Lithium Battery Active Equalizer Balancer Energy Transfer Board BMS 1.2A Balance"
https://s.click.aliexpress.com/e/cBCKX7oc please does anyone ever use it? I want to know if it actually works as advertised.
Thank you
I found this on AliExpress "DYKB 3S 4S 6S 7S 13S 16S Li-ion Lipo Lifepo4 Lithium Battery Active Equalizer Balancer Energy Transfer Board BMS 1.2A Balance"
https://s.click.aliexpress.com/e/cBCKX7oc please does anyone ever use it? I want to know if it actually works as advertised.
Thank you