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The black ALLDAY Extended Battery Back for GoPro HERO3+ from Brunton is a 4000mAh extended battery for the GoPro HERO3+ that can extend the run-time by up to four times compared to using the standard battery alone. It features its own back door that seals onto HERO3+ Housing allowing the system to be water resistant under IPX5 specification - it is not fully water-tight, however.
There is a standard USB type A port on the battery so you can also use it as backup power for smartphones and other mobile devices that draw less that one amp on the go. A 3-in-1 Cable is included which features adapters for Apple 30-pin, Apple Lightning, and micro-USB. The cable is specifically for power and does not carry data.
Side access charging door - charges with GoPro or other USB charger
In the Box
Brunton ALLDAY Extended Battery Back for GoPro HERO3+ (Black)