The 2 batteries are a great addition to the Sony Action Cam. The fear that the original battery "in the field" gives up and you therefore have to cancel the filming has to driven this set to buy me. the charger is extremely helpful, even if it leaves something to be desired visually. Functionally helps an LED, communication about the charging status of knowing. The batteries are fit and I still have no restrictions on the use of these can record instead of the original batteries. And cost-effective, these are all ..
