I am finishing up plans for electrical design and I'm wondering if a volt meter is really that useful. How many of you have installed one and refer to it for battery condition? Does the volt meter trickle much juice from the battery? Is there any reason to consider an amp meter?
I'm looking at just one U1 35Ahr battery to power a limited amount of lights and fans. Other than putting a multimeter on my battery every now and then is there another way to check battery condition? I kind of like the volt meters than have just a series of LEDs to show battery condition. Are they of any use?