Titanium Innovations CH-TPUSB 2-Bay Battery ChargerThis USB AA & AAA Battery Charger is compact, light and powerful.& It is very simple to use plug the charger USB cable to a PC USB port and watch the batteries get charged. A unique Discharge/Refresh function to fully drain the batteries before charging. Microprocessor controlled fast and safe charging. Multi-layer safety feature to safeguard against any unexpected charging conditions. Built-in safety timer control, temperature protection, overload and short-circuit protection. Charge 2 AA and /or AAA size Ni-MH / Ni-Cd batteries at a time. Two separate LED indicators for charging and discharging status. Supplied AC power adapter for universal AC voltage (100~240V) Feature Can charge up to 2AA or 2AAA rechargeable Ni-MH/Ni-Cad batteries. Automatic charge Cut-Off for safety. Built-in Micro-controller to ensure fully charged. Safety timer Circuit/polarity protection Charge time All batteries are NI-MH AA: 2100mAH: 315 min. 2300mAH: 345 min. AAA: 800mAH: 120 min. Contents Battery charger: 1 pc (TP-USB) USB cable X 1 Specifications Outlet input voltage: DC5V 500mA Charging output: DC 1.5V AA/AAA 400(max) Operating Temp: 0?C ~ 45?C Size: 68 x 65 x 28 mm Weight: 60g