More Capacity: High capacity circulatory function, perfect replace your original batteries. Grade A cells ensure fast charges and low power consumption. Longer battery life than the original battery. Please fully charge the battery before the first use. It is not only an Insta360 X3 battery charger, but also a battery and micro SD card storage case. The storage case is designed to store 2 micro SD card storage cases. This charging case has a smart charging indicator LED light so that you can see the charging status at a glance.