Two brand new 12v batteries in parallel. The meter on my leveling system shows 12.1 and my handheld tester shows 11.8. Should there be this difference? Have been plugged into 50amp shore power for th...
Less than 13.2 volts while plugged in says your charging system needs looked at.
BTW get a portable charger on those battery asap before they get sulphated while you get the converter sorted out. If spending money get at least 5 amp rated 10+ amps is better.