When ordering the FD1 Battery please look on the yellow portion of your plug and make sure which one you need, the XT90, or XT60
SwellPro Fisherman flight battery is specific designed to fit Fisherman's internal chamber to maximize Fisherman flight time. It features a 98.8Wh high voltage lithium-polymer battery.
Battery type: 4S LiHVVoltage: 15.2 VCapacity: 6500 mAh | 98.8WhWeight: 630 g
6500mAh Flight Battery x1