Really depends on what you're looking for. I'm a big fan of xmpp and irc but that might not fit the bill

Now you're projecting.

I'm betting you haven't opened a battery pack in your entire life. Why not go watch a couple of videos on laptop battery packs, what's in them, and how to fix em? Maybe you'll learn something instead of foulmouthing and fudding.

Me? I work with 18650s every day, protected and unprotected cells; I charge em, I fix em, and I know it's pretty hard to puncture em; that being said, if op is anything like you he's probably much better off leaving it to a qualified repairman or just buying new.

But thanks for the heads-up, I'll add a safety warning to my advice; that better? 🙂️

You do? So what's a laptop battery then?

Do you work on laptop batteries often?

just open the battery you have and replace the bad cells