Batteries are expensive. In our family we are always using batteries. The boy's use them for everything from flashlights to inventions.
So instead of buying AA's all the time, my parents bought an Energizer 15 minute charger. The charger fits both AAA and AA, four at a time. And, it's great for when you need batteries fast! All you need is the charger, and 4 or so rechargeable batteries, depending on how many you use at a time. I use them for my camera, and they work great! So invest in one of these today. It's worth it! And it Works for Me. Oh, and it says I posted this on Tuesday, but I really posted it today (Wednesday).