Batterychampion has moved to batteryupgrade. As you are used to at BatteryChampion, you will find batteries and adapters for more than 40,000 devices, but with better service, faster delivery and sharper prices.
Series 3 Gopro batteries are hard to get good ones, I've had a few from eBay and Amazon which were knock offs and some won't even fit into the GoPro. But the one I got from battery upgrade was perfect and is operating as intended.
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