If you can't get any satisfaction from the advice in this thread, I would highly highly recommend the Droid 2 extended battery. It lasts for-frakking-ever and even makes the phone even more satisfying to hold in your hand. The extended battery is ever so slightly thicker and comes with an alternate battery cover, and once installed your D2 is about 2mm thicker down where the battery is. Snap-on cases won't work, but mine fits in both the multimedia dock and my belt holster perfectly, and I regularly see 24+ hours battery life with moderate to heavy usage (hours of calling, dozens of texts, pictures, Angry Birds, and lots of Google Maps on 3G/WiFi).