So my drill battery died last month. Again. I've got this cordless drill I really like, had it for years, and the thing still works great. The batteries, though? Not so much. The original one finally gave up, and when I looked up the price for a new one, I actually laughed out loud. They wanted almost as much as I paid for the whole drill kit on sale. That sent me down a bit of a rabbit hole, and I figured I'd write up what I found, because I know I'm not the only one who's been annoyed by this. The whole thing feels like a trap, honestly You buy into a tool brand. You like the tools. And then you're kind of stuck, because every battery you ever buy has to be that same brand, and they know it, so they charge whatever they want. I always assumed the cheaper third-party batteries were going to be garbage. You hear horror stories. Things that don't hold a charge, things that get hot, the occasional scary one that swells up. So for years I just paid up and gr...