Item Type: Battery Lithium Lipo Balance Charger_x000D_Color: Black_x000D_Material: Aluminum Alloy, Electronic Components_x000D_Input Voltage: DC 9?16V (16W)_x000D_Charging Current: 800mA _x000D_Balance Current: 500mA_x000D_Accuracy: 4. 2V 10mV_x000D_Operating Temperature: ?20?45OC_x000D_Input Power: 30W_x000D_Maximum Charging Power: 25W_x000D_Product Size: Approx. 81x50x20mm / 3. 2x2. 0x0. 8in_x000D_Support Battery Type: for 2?4S Lithium Ion Batteries Or Lithium Polymer Batteries_x000D_Suitable For: Remote Control Toys, Model Airplane, Model Car, Model Boat and Other Batteries 1HIGH ACCURACY: Battery balance charger has super high charging accuracy, error within 4. 2V 10mV. With voltage display function, no need for external adapter, detect at any time. 2MULTIPLE PROTECTION: Battery lithium lipo balance charger has built in over current, over voltage, over temperature and short circuit protection modules to ensure stable current and protect the battery. 3ENERGY SAVING: Battery lithium balance charger uses high end microprocessor and professional processing software. New design balance architecture and algorithm, no need to discharge, save energy. 4APPLICABLE OBJECTS: Battery lipo balance charger can charge for 2S 3S 4S (7. 4V, 11. 1V, 14. 8V), but only one kind of battery is allowed to be inserted at a time. Simple operation, charging process is completed in one step. 5EASY TO USE: When not charging, you can directly insert the lithium battery balance plug to check the remaining voltage of the battery, easy to use. Automatic repair function for old batteries.