The compact and stylish HTC Battery Bar has the power you need to keep your phone running wherever your lifestyle takes you. It is one of the smallest battery backup devices on the market, but with 6,000 mAh it has the power to charge your HTC phone twice. It charges fast too - it gets charged and charges your phone about 30 to 50 percent faster than most of the competition so you can quickly get your phone back to full power.