This is a perfect replacement batterycharger for lithium-ion battery. Built-in safe chips, fully protect fromovercharging, over current, short circuit, and so on. Made of durable andfireproof material, you can use it easily and freely for charging.Features:Professional lithium-ion battery charger,perfect to replace your broken or lost one, widely used for headlight, toy car,balance car, and more.High efficiency, safe and fast forcharging, 2A large current output.Built-in stable performance chips, protectthe battery from overheat, overcharging, over current, and short circuit.Made of environmental-friendly material, safeand anti-interference, durable to use.LED indicator light shows the chargingstatus clearly.Specification:Material: ABSColor: BlackOutput: DC 21V 2AOutput Port: 5.5 * 2.5mmAdapter Size: Approx. 8.5 x 4.5 x 3cm / 3.3x 1.8 x 1.2inPackage Weight: 110gPackage list:1 x Power Adapter.Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.