3Pcs XL-MUL9V Lithium Battery to 9V Output, Multimeter Power Supply, Type-C Charging, Portable and Durable

Product Description

This module adopts a mature boost power chip and lithium battery charging chip solution, which has the characteristics of small size, stable performance, low ripple, and low static power consumption. Equipped with Type CUSB interface for lithium battery charging, with a maximum safe charging current of 300mA. Can be used to modify the power supply of a multimeter, replacing the original 9V battery with a 3.7V lithium battery using this module for multimeter power supply. After the lithium battery runs out of power, it can be directly charged through the USB port, extending the battery replacement cycle. Without connecting a lithium battery, the module can still operate normally and output 9V by inputting 5V through the Type-C USB interface.  Module type: 9VDC boost power supply Charging input voltage: 4.7V-6V Output voltage: 9V Battery input: Single string 3.7V lithium battery Output current: 100mA Static current: 160uA Output ripple: 15mV Module size: 24 75mm 15. 82mm  Type-C: Lithium battery charging input and power supply (4.7-6V) GND: Negative pole of power input/output BAT: Input positive pole of 3.7V lithium battery OUT: 9V output positive pole  The module board has two charging indicator lights. Normally, the lithium battery discharge indicator light will not light up. The indicator light will only light up when the Type-C USB interface is connected. No lithium battery connected, only Type-CUSB power interface connected, green light on; Connect the lithium battery to the Type-C USB interface for charging, and the red light will turn on; Charging completed, green light on. After connecting the BAT and GND of the module to the lithium battery and measuring the output voltage correctly, a 9V battery clip can be welded to the output terminal to directly connect with the 9V battery clip in the multimeter, realizing the power supply modification of the multimeter