The Jan. 17 Shop Android Deal of the Day is the Samsung 2100mAh Extended Battery w/ Door for Verizon Galaxy Nexus. (Not for the GSM Galaxy Nexus.) This is "genuine OEM equipment," meanting it's straight from Samsung, so there's no question of quality. With this battery you get about a 13 percent improvement in capacity over stock, and it comes with a new extended battery door. There's a slight increase in thickness, but many believe it actually enhances the feel of the phone. The 2100 mAh extended battery is available today only for just $38.95 -- that's 22 percent off! Get yours while supplies last!