I’ve been using the LBXR20 battery for my power tools, but recently I’ve been running into some issues. The battery doesn’t seem to hold a charge as well as it did when it was new, and I’m noticing a significant drop in runtime. I’ve tried charging it a few times, but sometimes it doesn’t even fully charge. Has anyone else experienced problems with the LBXR20 battery? Are there any tips for troubleshooting or improving battery life? Is this something that just happens over time, or could there be something wrong with the battery or charger?