Lenmar Halo 2,600mah Power Case for Samsung Galaxy S 4 - Retail Packaging - White
If you need some extra power for your Samsung Galaxy S IV, the Halo case has exactly what you need. The integrated 2400mAh Li-Ion battery doubles how long you can use your phone. This case gives you a standby time of up to 63 hours, talk time of 13.5 hours, video play up to 10 hours and Internet time up to 8.4 hours.