... batteryKey Specifications/Special Features:Specification: DC in: 5V, 1A/12V, 600mAOutput: 1,000mA at Li-ion, 3.7V battery1, ... capacities and worse/bad batteriesAutomatic 1.2/3.7V battery pack voltage and polarity detectionMetal plates for charging connection can easy ... power on, LCD display shows(Stby)characters, the charger is on standby mode and can insert a rechargeable Li-Ion battery or NiMH ...