2 Serial / 3 Serial 3.7V Li-ion Battery Boost Charging Module Support QC Fast Charging

2 Serial / 3 Serial 3.7V Li-ion Battery Boost Charging Module Support QC Fast Charging

Features:

• Support QC fast charging

• 15W synchronous switching boost charging

• Boost charging efficiency 94

• Can set 2 or 3 Serial lithium battery charging

• 2 series with equalization charging

• Adjustable charging current

• Input over-voltage and under-voltage protection

• Adjustable charging timeout protection

• Output over-current, over-voltage, short circuit protection

Use Details:

• The module is suitable for 2 series or 3 series of 3.7V lithium batteries, through the short connection settings, the default 2 series, when two strings are used, the module can be used with the battery equalization function, which is very practical, the input can be used for Type-C port and welding wire.

• When connecting the Type-C port to a fast charging source, the charging voltage is automatically adjusted to improve efficiency; if the welding line is input, the input voltage should be less than the battery voltage, and the module can only work in the boost state.

• Support 2 series and 3 series output, the battery needs to add a protection board, default 2 series to 3 series, you need to short the short point, and then remove the side of the resistor. 2 series can be used to equalize the function of the middle of the 2 series of batteries to the BM foot (the equalization speed is limited when using the two strings of batteries or try to ensure that the parameters are the same)

• Battery charging voltage setting, the default single string is 4.2V, the general battery is also this value, no need to change. If you need to change it, just set the VSET resistor of the board according to the RVSET setting table.

• Charge timeout time setting, no timeout time by default, set R0T resistor value to set. 68K-4 hours, 120K-12 hours, no post-24 hours.

• NTC access: normal not used, if necessary, the NTC resistor resistance value to 82K, NTC welding point and next to the GND access 100K thermistors (B = 4100)

• LED indicator: normal red light is always on, blue light is on during charging, blue light is off after charging full, blue light flashes after detecting abnormality

Package includes:

• 1 x Module