/diy/ - Do It Yourself

>>1467234
>Do I need to get a BMU(battery management unit)?
No. See >>1467534 for good advice on only safety component you actually need.
>How am I going to charge them?
Easy as pie, you need :
- big-ass Mains to 24V in the 25-50VA range.
- big-ass rectifier, 7A proof
- power resistor to limit charging current according to batteries datasheet.
- 6A ceramic fuse, temporised (as 7A continous current is very unlikely to happen beside batteries shorting circuit, so fuse can hold it a little of time before fusing). Note that 6A is a somewhat high value in a 7Ah charger application, consider lowering this value closer to 2 or 3*max charging current your batteries allow.

Not giving schematic, because obvious and fuck ms-paint.

/thread

sage goes in all fields