EPDM Coatings
rvupgradestore.com Composet Products Custom Yacht Interiors

Author Topic: Battery Voltage Guage  (Read 1846 times)

Wigpro

  • ---
  • Posts: 1298
    • Capt Jim Lucas
Battery Voltage Guage
« on: August 03, 2015, 11:32:54 AM »
I recently upgraded my batteries from 2 12 volt marine batteries to 2 6 volt golf cart batteries from Costco and the difference is amazing. I also changed all my light bulbs to LED's so I not only added a bunch of capacity I also reduced my draw significantly.

After returning from a 12 day remote trip with no electric - I was curious as to how the voltage fluctuated in my new batteries. To do this of course I had to go outside and get out my meter and measure the batteries directly - after 12 days my voltage had dropped from 13.2 to 11.8. Not bad. But I wanted to be able to monitor it more closely.

My range hood has the little battery indicator but that was not enough, it was still showing "green" after my trip.

A quick search on Amazon and I found THIS and ordered it for under $20.00 I figured it was a good deal - gain 2 USB Ports and a 12 volt outlet and a voltage gauge. Anyway - got it installed yesterday and love it...I checked the accuracy with my meter and it is right on!

Next is adding a small solar panel to help when I am remote camping!I also added some Camco hatch covers to allow my hatches to remain open on rainy days and also help protect my hatches from the sun.

Later,

Jim
« Last Edit: August 03, 2015, 11:36:19 AM by Wigpro »
Full time traveler, fishing guide and photographer!

Travel Blog: http://captjimtravelblog.blogspot.com

Website: www.captainjimlucas.com

Photo Site: http://captjim.smugmug.com/

Paul & Ann

  • ---
  • Posts: 1441
    • Paul and Ann's Great RV Adventure
Re: Battery Voltage Guage
« Reply #1 on: August 03, 2015, 11:46:17 AM »
The battery monitor that you have is better than what came with the RV, but is only useful to give some idea of state of charge of your batteries when your batteries are not being charged, or there is no load on the batteries.  If you really want to know the state of charge of your batteries you need something like one of these.  http://www.bogartengineering.com/content/trimetrics

Paul
Paul & Ann  Iowa
2005 Winnebago Voyage 38J
http://stoughrvadventure.blogspot.com/

530ktm

  • ---
  • Posts: 196
Re: Battery Voltage Guage
« Reply #2 on: August 03, 2015, 12:44:14 PM »
The battery monitor that you have is better than what came with the RV, but is only useful to give some idea of state of charge of your batteries when your batteries are not being charged, or there is no load on the batteries.  If you really want to know the state of charge of your batteries you need something like one of these.  http://www.bogartengineering.com/content/trimetrics

Paul
Yep, this is the best set up if done correctly, it tells you everything about the state your batteries are in. I would suggest a decent solar panel also if you want to charge the 6 volts batteries. Check this site for lots of valuable info on what you want to do. https://handybobsolar.wordpress.com/2014-solar-ideas-batteries-other-things/
2014 Itasca Sunova 33C from SoCal pulling Jeep Wrangler

Mopar1973Man

  • ---
  • Posts: 3496
  • Dodge Cummins Powered / Jayco Eagle Living
Re: Battery Voltage Guage
« Reply #3 on: August 13, 2015, 08:55:38 AM »
Nice addition to the power side of things I like the sockets for accessories!

I'm similar but already got most of that in my power cabinet. I was in the same boat the little cheesy panel with 4 LED's didn't cut it my book so I add a gauge. Now after adding all the solar and inverter now I've got USB power points and cigarette plugs too. Look at the solar controller to the left. Also the inverter.

I need a set of the vent covers... (Next on the shopping list of things!)

« Last Edit: August 13, 2015, 08:57:41 AM by Mopar1973Man »
Mopar1973Man (AKA: Michael Nelson) located out in the state of Idaho with...
2002 Dodge Ram 2500 5.9L Cummins Turbo Diesel
2000 Jayco Eagle FBS 296
2013 BigTex 70TV Utility Trailer

Moonstruck

  • ---
  • Posts: 81
Re: Battery Voltage Guage
« Reply #4 on: August 14, 2015, 04:37:16 PM »
IMO 11.8 volts is too low to draw the batteries down on a consistent basis.  About 12.2 volts represents about 50% SOC.  I would try to not go below that.  I have an 80 watt portable solar panel for just this type of thing.  On a 50' wire sun can usually be found.  The Bogart SOC meter is a great idea, and will give a more accurate picture of you batteries condition.  I have a Victron SOC meter.

http://www.ebay.com/itm/like/252041338032?ul_noapp=true&chn=ps&lpid=82
Don and Lou--Don Posting
Airstream Safari LS 25
'97 Chev Suburban 2500 Diesel
Tennessee/greenest state in the land of the free
"America is not a place;it is a road."  Mark Twain

 

Hosted by Over The Network