The charger is professionally designed for 2-8s NiMH/NiCD battery (2.4-9.6V) of drones,RC cars,RC boats,airsoft guns,etc. Smart charging,with overcharge protection,frees your time AC input voltage: 100-240V. Output power: 20W,charging current: 1A/2A. Charging current can be selected with a switch on the side of the charger This charger comes with a standard Tamiya connector and a free charging cable with a mini Tamiya,so you can charge your NiMH/NiCD battery easily. Just need to plug in the AC cord and connect your battery and the charger Steady red light indicates that charging is in progress,a steady green light indicates that charging is completed,and a red and green flash alternately indicates that the battery is not connected The charger shell is made of high-quality fireproof materials and has passed the experimental certification,so it can be used safely Specifications: Unit weight: 0.2kg Size: 11.8cm * 7.5cm * 6.5cm Input: AC100-240V Note: This charger is only suitable for NiMH/NiCD batteries. Please do not charge when left unattended. When1A/2A battery capacity is 2200 mAh,it is best to choose 1A. When the battery capacity is greater than 2200mAh,choose 1A or 2A,if you choose 2A,it will be faster. Package included: 1 x Battery Charger Set 1 x English User Manual