Other Power Features
LED Indicator : Red is charging and blue is fully charged, Battery over current protection : 3A, Battery Over discharge protection voltage: 2.5V, Maximum Charge current : 1000mA, Charging cut-off Voltage : 4.2V +/- 1%, Input Voltage 5V, Automatic Recharge, Preset 4.2V Charge Voltage with 1.5% Accuracy, Charges Single cell Li-Ion Batteries directly from USB Port, Complete Linear Charger in SOP-8 Package for Single cell Lithium ion Batteries, 2.9V Trickle Charge Threshold (TP4056)