Detailed Product Description Feature: - It can be used for the following RC Helicopter: Esky Lama3 , Lama4 , Robins22 , Comanche , Dauphin - Dimensions :54mm x 31mm x 13.5mm ± 3mm - Weight: 43.5g ± 5gItem Included: - Li-polymer Battery 7.4V 15C 900mAh : 1 Unit