Features Multifunctional lithium battery with 12-charge LCD display/accurate detection of voltage and current. You can check the battery charging progress anytime and anywhere, convenient and fast/stop when full, over-current protection/battery reverse charge protection/compatible with specifications of lithium batteries. It comes with multiple protection devices. Overcharge protection to prevent the battery from overcharging and automatically stopping when fully , suitable for 3.7-4.2V voltage lithium batteries 1.2-4.2V NiMH NiCd batteries are universal. Product model MS-812ACD Product input AC100V-240V Product output 4.2V-4200mA (lithium battery) 1.2V-1200mA(AA/AAA) Long product line 80CM Charging instructions The charging voltage and quantity are displayed. When the lithium battery is fully , the voltage is 4.2V. When /AAA battery is fully , the voltage is 1.5V. The LCD displays when the battery is fully . Applicable battery 18650/18500/18490/16340/14500/AA/AAA Plug Type:US Plug,it