100A Speed Controller For RC Helicopter: (1). User programmable (2). Max 125A <10s 100A Speed Controller For RC Helicopter: 100% Brand New! Description: 1. Constant current 100A, max 125A <10s2. Size : 70x50x13mm3. Weight : 125g4. Suitable for Li-Poly 2-7 cells, Ni-MH 6-27 cells5. Dynamic braking6. BEC : OPTO7. Auto shut down once lost signal8. Slow down at 3.0V per cell Lipo, Cut-off at 2.9V per ...