Single string or multiple strings?
I currently have my 18650 setup split into separate strings. a string of roughly 200watt packs, one of 150w and a small string of 85w. Each with it's own cheap bms and tied together on the negative and positive rails.
Not sure if it's proper, but I know many do this.
Atm I'm finally going thru and testing each pack, testing the capacity (only checked individual cells previously).
I'm doing this because my packs go a little out of balance after a few cycles, maybe .07v at most.
I only charge them to 4.1v (if they get that high) and my bms doesn't do any balancing there.
So now I am waiting for this to get delivered
https://www.ebay.com/itm/3-16S-48V-...o4-Lipo-Li-ion-Battery-Equalizer/153423625416
And I'm considering how to use it.
Thinking about just swapping it around to each string as needed. But it would be so much simpler if I just wired the whole thing into one string and left the balancer connected at all times.
Anyone have any advice what you think is best?
I currently have my 18650 setup split into separate strings. a string of roughly 200watt packs, one of 150w and a small string of 85w. Each with it's own cheap bms and tied together on the negative and positive rails.
Not sure if it's proper, but I know many do this.
Atm I'm finally going thru and testing each pack, testing the capacity (only checked individual cells previously).
I'm doing this because my packs go a little out of balance after a few cycles, maybe .07v at most.
I only charge them to 4.1v (if they get that high) and my bms doesn't do any balancing there.
So now I am waiting for this to get delivered
https://www.ebay.com/itm/3-16S-48V-...o4-Lipo-Li-ion-Battery-Equalizer/153423625416
And I'm considering how to use it.
Thinking about just swapping it around to each string as needed. But it would be so much simpler if I just wired the whole thing into one string and left the balancer connected at all times.
Anyone have any advice what you think is best?