How to Use: Suitable for 100‑240V US plug AA and AAA series rechargeable batteries, LCD display for easy reading: battery voltage, charge, discharge current, charge time, battery capacity. Specification: Item Type: Battery Charger Analyzer Material: ABS Gross Weight: 432g / 15.2oz Product Size: 14.8x10x4cm / 5.8x3.9x1.6in Specifications: US plug Working voltage: 10V-16VDC Adapter Input Parameters 100-240V, 50 60HZ Adapter Output Voltage: 12VDC Charging Current: 200-1500 (mA) Number of Slots: 4 Discharge Current: 100-500 (mA) Charging Time: 2h Working Temperature: 40℃ Purpose: Designed for NiCd and NiMh rechargeable batteries for AA (R6) and AAA (R3) batteries 4 batteries with optional charging current up to 700mA, and 2 batteries with optional charging current up to 1000mA 4 Working Modes: Charge, discharge, refresh, test capacity Functions: Fully charge the battery automatically (regardless of the mode selected) Easy to Read LCD Display: Battery voltage, charge/discharge current, charge time, battery capacity Dual processor design closely monitors charger and battery temperature during charging Charging Current for 3-4 Cells: 200,500,700 mA Charging Current for 1-2 Cells: 200, 500, 700, 1000 mA Package List: 1 x Battery Charger 1 x Instruction Manual 1 x US Plug