Specifications:

Item Name: 3.7V 500mAh Lipo battery
Playing time : About 5-15 min
Charging Time : About 30 min
Cable Length: 35mm
Dimension: 85 x 25 x 40mm
Weight:17.3g
Upgrade to 600mAh， longer flight.
Suitable for Syma  Syma  X5HC， X5HW quadcopter