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    Large capacity cell charger

    Hi. Is there any recommendations on a modular scaleable Li ion cell charger? Like it can charge a lot of cells and ideally be able to add to the system to charge more cells? Or a li cell charger that can handle cells more than 10Ah? Ideally in the 100Ah range. Thank you.
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    Buck converter 12v to adjustable 3.6V to 4.2V? high current

    Hello. I got about 1000 18650 cells to make one 3.6V/4.2V big cell. I want to fast charge them using either a 12V car battery or other multiple 12V power supplies (in the 300W+ range each). I found these noname Chinese made 40A buck converters CCCV around $13-$25 ea. That means I need ballpark...