Color Blue + Black Model DC 12400 Quantity 1 Piece Material Plastic Cell Type Lithium Ion Battery Model Others12400 Head Type Flat Top Mark Capacity 4000 mAh Actual Capacity 4000 mAh Voltage 12.6 V Rechargeable Yes Rechargeable Times OthersOver 500 times Built-in Protected Circuit Yes Over Voltage Protection Yes Short-Circuit Protection Yes Over-Charging Protection Yes Over-Discharging Protection Yes Mercury Free Yes Interface 5.5 x 2.1 mm Other Features Output voltage: DC 12.6~10.8V; Output current: 2A Packing List 1 x Battery 1 x AC power adapter (EU plug / 90cm-cable / input 100~240V)