Simple Accumulator Indicator

Simple indicator of accumulator in what condition he is. It's for 12 V accumulator or batteries. This one was maded for car accumulator purpuses, to se in what condition they are. Note: if you want to se real condition, accumulator have to be under load. In car is easy, just turn on the lights and maybe a radio and accumulator will be under load, car must not be running!.

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