Gang...
Many projects going on, and one that I've been kicking around is a small battery bank made up of series/parallel 18650 cells.
I've been doing research and know that I'll need to balance the cells, not charge them over 4.2 V, or discharge them under 3.0 or so.
What I haven't seen is a constant current charging circuit.
The words 'simple, safe, and Li-ion' should never been used in the same sentence.
So I've been looking for a single IC that will charge 18650 cells (li-ion) when configured as 3S6P. I can find single cell charger ICs, but not so much multi-cells. The ones that I do find are solder ball footprints, something I can't deal with.
Yes, I know about the TP4056, and ebay has them by the thousands. I've seen BMS and protection circuits as so on.
And yes, I know you can buy a charger that will do the 3S6P configuration, but that's not what I want. I somehow suspect those china chargers aren't what they claim to be.
So, any one up for some ideas
Mike