After some testing we have determined that these batteries are recommended for 65mm low KV motor whoops.  
 
FYS CRAFTS 300mAh 75C 1S HV 3.8V FPV lipo battery Specifications:
- Quantity: 4 1s packs
- Minimum Capacity: 300mAh
- Configuration: 3.8V / 1S1P / 1 Cell
- Continuous Discharge Rate: 75C
- Burst Discharge Rate: 150C
- Dimensions: 62mm length x 11mm Width x 7mm Height
- Weight: about 8.5g
- Charge Plug: JST-XHR
- Discharge Plug: BT2.0/PH2.0