Here are the specs:
Tattu 4000mAh 22.2V 15C 6S1P Lipo Battery Pack for Yuneec H920
Spec.
- Product Type:lipo battery pack
- Capacity: 4000mAh
- Voltage: 22.2V
- Max Continuous Discharge: 15C (60A)
- Max Burst Discharge: 30C (120A)
- Weight:: 620g
- Dimensions:168 *28 *45.5mm (L * W * H)
- Balance Plug: JST-XHR
- Discharge Plug: EC3
- Charge Rate: 1-3C Recommended, 5C Max
Tattu lipo 4000mAh 6S1P 15C/30C battery.
Based on this, it looks like you can charge them between 4 and 12 amps, if you want to customize it, but you can charge these the same as you do your Yuneec batteries (4amps max).