Anker 1550mAh Li-ion Battery for HTC ThunderBolt, MyTouch 4G, Merge(PD42100) [Not compatible with MyTouch 4G Slide] [18-Month Warranty]

Product Review

Keep your phone powered throughout your busy day with our high-capacity, rechargeable Lithium-Ion batteries. Don't let your cell phone be caught "dead" without one! An excellent, high-quality replacement for your original battery, great as a spare battery for long meetings, business trips, and vacations!
Almost doubles your talk time, browse time, and standby availability with a capacity of 3500mAh! Includes a special, high-capacity extended back cover for your phone.
Integrated microchip prevents overcharging and lengthens battery life!
Compatible with: HTC ThunderBolt 4G LTE 6400
Package Contents: 1 extended cell phone battery with 1 extended battery door cover