Specification:
Battery type: Li-poly
Rated voltage: 7.4V
Capacity: 4000mAh
Size: 140mm*48mm*10mm
Discharge rate: 20C
Compatible:
RC helicopter,Racing Car, Scale Boat
Built in high quality lithium ion battery cell
Come with JST joint connector, convenient to connect with balance charger
Heat resisting silica gel wire
Weight: 294g

NOTE:
Do not bump,disassemble, short circuit and put the battery in fire
Stop using when it expends or the temperature is over 70°C
Keep away from kids they can not get it