Brunton’s All Day battery is a long-lasting 4,000mAh battery that will extend the power of your GoPro by up to four times the specified run-time.
It is compatible with Hero3+ GoPro models, and will soon be available for Hero4s as well. The battery is housed in a water- and shockproof case, so you can use your camera in rain, sea or snow, as usual.
The All Day battery can also be used to power standard smartphones.
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