Flywing 4S 14.8V 5000mAh Battery - FW450 V3 / AirWolf / BO-105 / EC-135 / Bell-412 / MH-60. Upgrade Battery for FlywingRC FW450 V3 / AirWolf / BO-105 / EC-135 / Bell-412 / MH-60 Helicopter. 4s 14.8v 5000mAh Battery.
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