arduino 12V Lithium Battery Capacity Tester Display Panel Electric Power Indicator Electronic Components Electronic Hobby Kit

charging or discharging process by gently press the red button, IED lights, the light board line through the current is about 30mA. Loosen the 2 finger, LED exhibit of lanterns delay turns off after 5 seconds, the lamp panel line shutdown, there is no current through the. board with reverse connection function, and take the wrong line no problem, the adjustment will be able to come A total of 5 lights, display power, applicable to inverse converter prompted the battery!