"Characteristics:
1. It supports simultaneous charging of three batteries at maximum power to make sure they are fully charged and ready to go. The charging hub can also be served as a battery and Micro SD card storage box which can hold 3 Micro SD cards at the same time.
2. When the battery is low, the charging hub can intelligently charge the battery at maximum power. It will gradually reduces the charging power once the battery is high and automatically stop charging the battery once it is fully charged.
3. The built-in intelligent chip provides smart overheat, overcurrent, short circuit, and overvoltage protection for your batteries to ensure that they stay in good condition for as long as possible.
4. Equipped with charging indicator light, it is easy to identify the charging state during the charging process.
5. Fast charge hub is compatible with DJI Osmo Action 4/3 Battery, please check the model before you buy it. Email Us While You Have Any Questions.
Specifications:
Condition: 100% New High Quality
Type: Battery Charging Hub
Material: ABS
Color: Black
Quantity: 1pcs
Weight: 150g
Compatibility: For DJI Osmo Action 4/3 Battery

Packing list:
1* Battery Charging Hub
1* Charging Cable
"