HTC 2750mAh Extended Battery w/ Door for ThunderboltThe Oct. 26 Deal of the Day is a hot one for you HTC ThunderBolt owners: It's the HTC 2750 mAh extended battery with extended battery door. It gives you almost double the juice of the stock battery, and it's an official HTC accessory, so it's got the name and might of the manufacturer behind it. And it's on sale today only for $34.95 -- that's 56 percent off. Get yours while supplies last!