About EBLÂAll EBLÂ chargers are up to the standard of Indoor use only,Automatic charge,100-240V Worldwide Voltage,Environmental,protection,Intelligence protection,Cycle charge, Safety Stabilization and charging indicator. Specification: Input: 100-240V AC 50/60Hz Output: DC 8.4V 400MA(one 9v battery), DC 8.4V 150mA(four 9V battery) No Load Power Consumption:1W MAX Full Load power consumption:5W MAX Battery Charge Rate:>90% Size:98mm x 92mm x 39mm Weight:91g About product: When your rechargeable batteries are out of power,you need a battery charger,and this EBL battery charger is a very good choice for you,and it could charge one or more 9V batteries(up to 4pcs).What's more,the charger uses the MCU control technology,providing the constant current and constant voltage safety model.Once the Voltage reaches 8.1V,the blue LED will slowly become darker until lights out. Compatible with: 6F22(9V)li-ion rechargeable battery Package: 1 x EBL battery charger 1 x user manual