My Makita cordless driver's battery won't charge anymore. I put it on the charger and it looks like it's charging for about a minute, then I get the battery broken indicators. I have 2 batteries and the other one charges just fine, so I know it's not the charger. These batteries ain't cheap. Here's a pair for $43.50: 2 X 18V 4.0Ah 18 Volt Lithium Ion Battery LXT For Makita BL1840 BL1815 Pack New | eBay But at the moment, I only need one. I'm not sure I should spend extra for 2 batteries, although the good battery I have is the same age as the one that went bad, so it might take a crap on me soon too. If I get only one battery, it's about 35 bucks. Less than 10 dollars more I'd get 2, but that's still a chunk of change for me. I haven't been doing a lot with my power tools lately. That could change, I s'pose. I have plenty of projects to do, but have been procrastinating. The tools (I have a drill and a screw/nut driver) are 4 or 5 years old. I've used them a lot over the years, especially for driving screws - I don't have enough energy to swing a hammer anymore. I really like the tools, but in my days installing (11 years ago), it was almost better to replace a cordless tool than just the batteries. Not sure that really applies to my Makita LXFD01 and 74LJ though. I have replaced batteries before and had to replace the charger once (I left it out in the rain), but the tools have held up well. They are kinda old now, though. Or are they? Not sure what to do.