seattleboatguy
Senior Member
On my circuit breaker panel, I have a single 12 volt analog amperage display that goes from 0 to 30 amps. I would like to modify my wiring so I can see my amperage for both the start battery and the house battery. It also seems to me that the amperage should have both a positive and negative scale, depending on whether the battery is getting charged or being drained. My questions are:
- Do all 12 volt amperage displays require a shunt? On Amazon.com, some amperage displays definitely include a shunt, and others make no mention of a shunt.
- Is an amp-hr display overkill or important information?
- What would you recommend for battery #1/#2 amperage readouts?