Specifications:

[10 cells] two electricity, one charge, two chains German quality-brushless 14 inches

[10 battery cells] four electricity, two charges, four chains, German quality-brushless 14 inches

[15 cells] two electricity, one charge, two chains German quality-brushless 14 inches

[15 battery cells] four electricity, two charges, four chains, German quality-brushless 14 inches

[10 cells] two electricity, one charge, two chains German quality-brushless 16 inches

[10 battery cells] four electricity, two charges, four chains, German quality-brushless 16 inches

[15 cells] two electricity, one charge, two chains German quality-brushless 16 inches

[15 Cell] Four Electricity, Two Charges and Four Chains German Quality-Brushless 16 inches