Replacement Battery for Hero4 The RAM-B-345U brake/clutch reservoir cover

The RAM-B-345U brake/clutch reservoir cover base fits cleanly over your existing reservoir cover with the 1" ball centered

The perfect compliment to the modern sleek interior of today's vehicles

This part is designed to fit into the cylindrical bore wall of fork stems and will work with stems that measure from 12 -20mm and 28mm or

16:9/4:3 aspect ratio switch

which helps further stabilize your shots with its extra weight

Replacement Battery for Hero4 The RAM-B-345U brake/clutch reservoir coverThis battery pack is compatible with all Hero4 cameras (Silver & Black ed.). It packs 1160 mAh of power, same as the OEM battery from GoPro, but is a little easier on your wallet!