Re: [electricboats] Cells seem to have stopped increasing voltage when balancing

A FLIR infrared cam on your smartphone could easily show temperature differences during charging.

I have a small thing called FLIRONE PRO. Very efficient, very useful. Snaps into the USB-C gate on your phone.

On Monday, 14 October 2024 at 06:11:26 CEST, bobkart <couch45@msn.com> wrote:

It doesn't seem like that will speed things up.  The same amount of energy needs to go into the battery with either approach.  Sure, you'll see one four-pack get there more quickly.  But getting all sixteen cells full will not go more quickly.  It will go a bit more slowly due to the regrouping of cells (and self-discharge on four-packs not being charged).

 

I suspect you could use more power.  In the other thread, I suggested MeanWell's RSP-500-4.  Yes it costs more.  It's a spend-more or wait-longer tradeoff.  Not counting delivery time for the better charger.

 

Another possibility is that you have damaged-cell issues.  You may want to check for one or more cells being warmer than the others.  They could be 'sinking' current.  Although at the low level you're charging, you might not be able to tell the difference just by touching them.  At 100A the difference would be more obvious.