For GoPro Hero3 and Hero3 + Battery Charger 4 in 1 for GoPro AHDBT-301 AHDBT-302 Bundle of Star - NEW with Micro USB connection - Pairing - GoPro Hero 3 Hero3 Hero3 + Black, White & Silver Edition (Equipment) 4
For GoPro Hero3 and Hero3 + Battery Charger 4 in 1 for GoPro AHDBT-301 AHDBT-302 Bundle of Star - NEW with Micro USB connection - Pairing - GoPro Hero 3 Hero3 Hero3 + Black, White & Silver Edition (Equipment)
So you need not always charge the battery in the camera. Practically would be a double charger for 2 batteries simultaneously - as probably everyone more than one or two batteries need in the durability of the battery Gopro