Battery charging

[absrec]

When I was reading up on solar battery banks it always  was recommended to have the batteries in series.  Charging in parallel requires more sophisticated monitoring and is more dangerous because the batteries can charge unevenly.

Actually, it’s the opposite. Charging a bunch of cells in parallel is the no-brainer and doesn’t require a BMS. They all manage each other. It’s when you charge cells is series that you run the risk of certain cells charging faster or slower than others. That’s my understanding anyway.

I even thought about building a bank of cells in parallel to solve the charging issues and then just use a boost converter to get to 12V. Or maybe a buck/boost. I haven’t investigated that though. I’m sure the idea is riddled with an equal amount of problems.