Will a Voltmeter Drain a Battery When Always On? Exploring Power Drain Effects
A voltmeter does drain a battery, but only a small amount of current, usually around 0.00001 Amps. This drain is minimal compared to the typical parasitic drain of 80 mA. Therefore, using a digital voltmeter will not significantly affect battery life, similar to keeping radio presets. This impact is only noticeable if the battery is … Read more