"Storage Charger Box Features*Unique and elegant design among GoPro charger in the market*Fully charged 3 batteries simultaneously within 2.5 hours*Compact size, convenient for storing and carrying*Smart charging indicator light, red for charging and green for charging completed*Fully compatible with Go Pro original batteryNote: We do not recommend to charge Telesin batteries and GoPro original batteries at the same timeStorage Charger Box SpecificationInput: 5 V 2AOutput: 4.4 V 800 mA (1 port each)Adaptive firmware version: Hero 9 V1.21 and All Future Firmware Updates.Charging time: 50 mins for 1 battery, 90 mins for 2 batteries, 150 mins for 3 batteriesCharger Weight: 58g2-Pack Replacement BatteriesCapacity: 1750mAh for a single batteryOutput: 3.85V/4.7Wh Input: 4.4 V 800 mA (1 port each)Battery Life: Recharged up to 2100 timesEach Single Battery Working Time:5K/30FPS last for about 90 mins4K/60FPS last for about 72 mins4K/30FPS last for about 112 minsPackage Contents:1 x Storage Charger Box2 x Telesin Batteries1 x Type-C Charger Cable "