- Joined Dec 24, 2019
Please I have a bunch of lithium batteries connected in parallel, each rated 3.2v and 3Ah.(about 4 of them. I have a laptop charger with an output of 19v at 2.1A. I know I can't connect it directly to the batteries, so what type of circuit can I use to charge the batteries via the laptop charger. Is it a buck converter or what else is best.