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Old 06-11-2013, 04:18 PM   #1
Join Date: Jan 2013
Location: Denver
Posts: 36
Battery Monitor

Has anyone used one of these to monitor the batteries? Looks like it gets good reviews...


2010 Jayco Jay Flight 24RKS
2008 Dodge Ram 1500 5.7 Hemi
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Old 06-11-2013, 07:26 PM   #2
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Join Date: Jun 2012
Location: Sparta, TN
Posts: 1,174
This device will read the voltage at the receptacle you have it plugged into. The voltage it displays will be close to your battery voltage ONLY IF NO OTHER 12V LOADS ARE ON. The only way to accurately measure your battery voltage while loads are present is by a dedicated pair of wires from battery to the voltmeter.

This meter is useful as long as you understand the limitations.

Just for the record the claim "Protects the engine computer and 12-volt accessories from surges" is bogus. This device cannot do that.

Chuck - Sparta, TN
2012 Jay Flight 22FB, 2 x Honda EU2000i
2013 GMC Yukon XL Denali AWD

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Old 06-11-2013, 10:37 PM   #3
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Join Date: Sep 2011
Location: King George
Posts: 2,398
These are pretty neat to have if you have a 12VDC cigarette lighter plug. I don't have any in my trailer except at the OTA Antenna Panel. I am not a fan of using the cheap 12V cigarette lighter plugs...

I hard wired a three digital meter panel in my setup - A DC VOLTMETER for each battery bank and a DC Current meter for the main DC line coming from the batteries.

ALot of folks really like the Bogart TRIMETRIC battery monitor setup TM-2025-RV...

When we are camping off the power the power having a good BATTERY MONITOR PANEL is a must thing thing to have for us. When the BATTERIES get down to 12.0VDC it's time to start thinking about getting them recharged back up otherwise you will start doing damage to your batteries.

Just my thoughts
Roy Ken
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA

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2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
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Old 06-12-2013, 10:26 AM   #4
Join Date: Jan 2013
Location: Denver
Posts: 36
Thanks, just looking for something better than the standard panel monitor. We've run the batteries down a couple times after the panel read 2/3 full.
2010 Jayco Jay Flight 24RKS
2008 Dodge Ram 1500 5.7 Hemi
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