The JacobsParts USB-C Charging and Discharging Module is a highly efficient and adaptable device with dual interface capabilities, providing the option to include an unwelded USB-A connector. The unique boost circuit feature enables it to work as a power bank, outputting 5V from the battery despite the terminal voltage ranging from 3.3V to 4.2V. Its in-built intelligent load detection offers superior control by automatically turning off output when load current drops below 50mA and showcases an external key functionality for complete control over the power display.

One of the standout features of this device is the automated termination and restart of its charging cycle. The charging process is halted when the current drops to 100mA after reaching the final floating charging voltage and is automatically resumed when the battery voltage drops below 4.1V. Another noteworthy feature is the pre-charging functionality that prompts a current of 180mA when the battery voltage is under 2.8V, thus ensuring optimal battery health

The module significantly supports simultaneous charging and discharging and introduces auto turn on and turn off functionality upon USB device connection. It operates within an input voltage range of 5V-5.5V, with a charging cutoff voltage approximating around 4.2V/4.35V, and a charging current of about 2.4A. The device has an impressive boost conversion efficiency of close to 92.5%, factoring in wire loss compensation, with the help of the IP5306 IC chip it's built with.

Specifications
Input voltage range: 5V-5.5V
Charging cut-off voltage: (4.2V/4.35V) ±0.5%
Charging current: 2.4A±5%
Boost output voltageL 5V~5.15V 15V (with wire loss compensation)
Boost output voltage ripple: 100mV
Boost output current: 2A
Boost conversion efficiency: 92.5% (3.6V input, 5V2A output)
Battery end quiescent current: IC Chip: IP5306
Dimensions: 20 x 25 x 4.5mm