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I stumbled across this battery box and am wondering if anyone has had any experience with it. https://www.napaonline.com/en/p/BK_MTBA890?impressionRank=85 I have a home built LION battery, actually bought the cells from LION Energy, that is currently in a cheap $10 battery box with no...

I have some Ryobi One+ battery packs. They have 5 lithium 18650 cells in series for 18v output. They also have Ryobi's proprietary BMS. I have been having issues getting the batteries to charge through the BMS without a Ryobi charger. So I am considering replacing the BMS's. I am planning to...

I know I read or heard something about some brands to stay away from for Lithium Ion cells, but I am not remembering where. Can someone point me to a forum post? Or just provide recommendations? I am wanting to build an extra battery for my son's RC truck. It seems like a fun father-son project.