Jayco RV Owners Forum

Thread Tools Display Modes
Old 06-24-2012, 12:37 PM   #1
Senior Member
bed685's Avatar
Join Date: Feb 2012
Location: St. Louis, MO
Posts: 151
12 Volt System Charging Rate

Recently I had the inline fuse at the battery completely fry. The battery turned out to be fried as well. I am concerned that the charging system could be damaged, too. Does anyone know a way to check the charging system to make sure it is properly working and what the rate of charge is from the charging system to the battery? any help is greatly appreciated.

2007 Jayfeather 29X
2000 Ford Excursion V10
bed685 is offline   Reply With Quote
Old 06-25-2012, 01:13 AM   #2
Senior Member
Join Date: Jul 2011
Location: Albuquerque
Posts: 261
I would:

- let the trailer sit for 6+ hours not hooked up.
- check battery voltage with a multi meter.
- plug the trailer in
- compare voltages..

Higher is better.

- 2005 Dodge 2500 CTD 6spd manual
- 2010 Starcraft Autumn Ridge 246RKS
- 2003 Casita Spirit Deluxe (sold)

My Write-up on managing 12V and batteries
LED Bulbs and what I did
Chakara is offline   Reply With Quote
Old 06-25-2012, 05:54 AM   #3
Senior Member
RoyBraddy's Avatar
Join Date: Sep 2011
Location: King George
Posts: 2,395
I suspect your 2007 RV unit does not have a smart-mode converter/charger on-board. These smart-mode units really perform nicely for automatic battery maintenance.

If your converter/charger unit is not a smart-mode unit it will constantly put out 13.6VDC and this will boil out your battery fluids over time. One should check the battery fluids every couple of weeks if the RV is always connected to shore power.

The fix is to upgrade to a smart-mode converter/charger and add a second battery while you are at it. Having 200AH of battery capacity is boss if you like to camp off the power grid for a couple of days over a weekend.

PLAN-B is to keep a close eye on the battery fluids and purchase a digital voltmeter from LOWES, WALMART, or any number of auto parts store, even AMAZON.COM. They only cost $7-$20 and will certainly take the guessing out of what is going on with your batteries. Sometimes when a converter/charger unit fails it goes to 19-20VDC and that will certainly cook your battery big time.
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA

"We're burning daylight" - John Wayne
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
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"
RoyBraddy is offline   Reply With Quote
Old 06-29-2012, 02:01 PM   #4
Senior Member
bed685's Avatar
Join Date: Feb 2012
Location: St. Louis, MO
Posts: 151
Thanks for your suggestions. I found the charger/converter is done. I ordered a new one with the smart charge option. It should be here today.
2007 Jayfeather 29X
2000 Ford Excursion V10
bed685 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 07:24 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.