Are you looking for battery storage that is made of environmentallysafe materials? Our GoPro 9 Battery Storage Box 1750mAh supports TF card high-speed reading and writing and provides a maximum reading speed of 20Mb/s.FeaturesVersatile- Supports the storage of 3 batteries and 3 TF cards, and supports the rapid charging of batteries. Your batteries will be kept safely and securely without any problems.Waterproof - IP54 waterproof level meets the needs of everyday life, protecting the batteries in all circumstances.Portable- The charging box is fitted with a travel hand strap for easy transportation.Package Content1x GoPro 9 Battery Storage Box 1750mAh3x Battery1x Type-C CableSpecificationsBattery Weight: 0.07lbsProductWeight: 0.26lbsMaterial: Lithium BatteryRated Capacity: 1750mAhProduct Size: 82x73x68mmCharging Limit Voltage: 4.40VApplicable Models: For GoPro Hero 9 Black