Description

Features: 1. The output will be turned off when the load current is continuously less than 50mA. 2. It supports external keys. Connect the keys to the K point and the output negative pole. Short press to turn on the power display and turn on the 5V output. Short press twice in a row will turn off the power display and turn off the 5V output. 3. When the charging current drops to 100mA after reaching the final floating charge voltage, the charging cycle will be automatically terminated. 4. When the battery voltage is lower than 2.8V, the battery will be precharged with 180mA current. 5. The back of the product provides the welding position of usb-a mother seat, which can be installed manually. 6. Support charging and discharging. 7. When the battery voltage drops below 4.1V, the charging cycle starts again. Specifications: Optional specifications: Welding version / non welding version Input voltage range: 5 ~ 5.5V Charging cut-off voltage: (4.2V / 4.35v) ± 0.5% charging current: 2.4a ± 5% Boost output voltage: 5V ~ 5.15v (wire loss compensation) boost output voltage ripple: 100mV Boost output current: 2A Boost conversion efficiency: 92.5% (3.6V input, 5v2a output) Static current at battery end: < 30uA Package Include: A package welding single lithium battery charging and discharging module * 1 B Package  no welding single lithium battery charging and discharging module * 1 mother seat * 1