8-segment LED battery power indicator 4.2V 7.4V 12V 16.8V 22V 24V 36V 2S-10S LED lithium battery power indicator meter tester
USD 2.94USD 4.98
8-segment LED battery power indicator 4.2V 7.4V 12V 16.8V 22V 24V 36V 2S-10S LED lithium battery power indicator meter tester