A recent trip to the dumpster netted me a couple of old laptops (from around 2012). The batteries are completely flat and will not take a charge. I plan on using them as beater computers around the house, so battery life doesn’t really matter but would be nice to have. The cheapest no-name batteries available for them are about $15 each. A used OEM battery with about 75% health is a dollar more.
For those who bought the cheapest aftermarket battery, was it worth it? Were the batteries surprisingly good or am I better off with a used but original one?
I’ve used some non-OEM expanded cell batteries back in the netbook days and they worked okay for about two years before drastically losing their ability to hold a charge. I’d recommend just sticking to OEM parts with proper electrical certifications just to help lower the chance of thermal runaways or things like that.