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134N3P 5V Step-Up Module Lithium Battery Charging Protection Board - Boost Converter with LED Indicator - for DIY Power Bank
4S 14.4V lifepo4 Battery Power Indicator - 18650 Li-ion lipo Lithium Battery Capacity Indicator Power LED Display PCB Board Meter Tester - with Switch (4S 14.4V LiFePo4)
4S-14.4V Voltage Range
Battery Type: Lithium Iron Phosphate battery packs built with LiFePo4 batteries (2.5V to 3.6V)
4S-14.4V Voltage Range L1:8V-9V L2:9V-11.4V L3:11.4V-13.2V L4:13.2V-14V L5:14V-14.4V
There are 5 small lamps, which display the power, which is suitable for the reverse battery lithium battery power prompt.
Press or hold the red button with your finger during charging or discharging; the ED lamp lights up, and the current through the lamp board is about 30mA;
Release the finger, the LED light will go out, the light board line will be off, no current will pass; The board has a reverse connection function, and the line is not connected to the wrong one. It can be adjusted.
|Dimension||6.2 x 2.6 x 0.3 cm|