Basic parameters Input voltage range: 5~5.5V Charging cut-off voltage: 4.2V ± 1% Charging current: 2.4A ± 5% (input end) Discharge cut-off voltage: 2.95V Boost output voltage: 5V~5.15V Boost output current: 2.4A Boost conversion efficiency:90% (when the battery voltage is 3.6V and the load is 0.5-2.4A) Static current at the battery end: 200uA   Product functions and features Equipped with Try SRC function, TYPE-C port supports input or output. When connecting the lithium battery for the first time, a charging action is required to activate the chip.   When the battery voltage is below 3V, the battery will be pre charged with a current of 300mA. When the battery voltage is higher than 3V, it enters constant current charging and limits the input current to 2.4A. When the battery voltage is higher than 4.2V, enter constant voltage charging. Adopting an ultra-thin design with a sunken USB board, the overall height is only 5.8mm. 5V constant output, 5V output port can support low current loads. Supports charging and discharging at the same time (TYPE-C input, UAB-A output), and the 5V output terminal will briefly turn off when the input power is connected or disconnected. Product size: 34 × 20 × 5.8mm