EPIC L55G3

What's in the box?

55000mAh External Battery for GoPro Hero 3/3+

(1) 40 Meter back housing

(1) 60 Meter back housing

specifications
BATTERY CAPACITY 5500 MAH / 20.35 WH
BATTERY CELL LITHIUM-ION
Volts 3.7
INPUT CHARGING TIME 10 - 11 HOURS
CYCLE LIFE OVER 500 USES

Performance (Battery Life: Resolution@frames per second)
Depending on device

1080@60FPS 7 hours and 3 minutes
worth of video.
Memory card was filled.
1080@30FPS 7 hours and 47 minutes
worth of video.
Battery Drained.
4k@15FPS 6 hours and 17 minutes
worth of video.
Memory card was filled.