12V Meter Curiosity......

OK....trailer plugged in to 110V for 2 solid weeks.

Meter reads 100%

Unplug 110V....meter reads 100%

1 hour later.....meter reads 84%

1 week later....meter reads 84%

A week of parasitic draws like circuit boards, alarms, stereo memory, clocks, etc. could lower the fully charged battery by 16 percent.

Plug it in for a week, then unplug for 24 hours and check meter

At 12.14 volts your charger should be at 14.8 v charging. More than likely you have a WFCO charger that won't go into boost so you need at least a week to charge the battery

Linc

OK...thanks. Trailer has been unplugged for over a week now and it just sits at 84% unless I use , say, the water pump...then it goes down.
Stop using the water pump and back up it comes to 84%.

This is a handy chart showing the DC VOLTS verses Percent of Charge readings... I always wait a few minutes to let a battery rest before making readings after being charged with higher DC voltages...



I do not put much faith in any of the Percent reading meters on the trailers... I always use a known good DC VOLTMETER to make readings with

Roy Ken

You have to wait awhile after unplugging to get the correct "at rest" reading, perhaps 30 minutes. Also make sure there is no parasitic drain occurring.