Perfect fit for ultra-micro helicopters like the E-Flite Blade mCX, mCX S300, mSR, 4-Site and ParkZone Vapor, Ember, J-3 Cub, Sukhoi Su-26m, P-51D Mustang, Cessna and Hobby Lobby eRC Mustang, Spitfire.

Get longer flight times, more power, and more cycles.

Note: Always grab the bat...