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Old 09-27-2017, 10:17 AM   #1
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Battery Replacement

We are fulltiming. I need to replace the house batteries. Can the batteries be replaced with shore power on and battery switch off?

Bob Dawson
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Old 09-27-2017, 05:36 PM   #2
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In theory yes. The converter/inverter should be isolated from the batteries. Do you have a solar panel? Ours will charge the batteries even when they are disconnected so you would want to make sure the positive lead doesn't come in contact with any metal during the change.

If you're concerned, buy new batteries. Disconnect shore power and swap the batteries. Then take the old ones back to get your core charge. It shouldn't take that long to swap batteries so fridge and everything else should be okay.

Hank & Lynda
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Old 09-27-2017, 05:54 PM   #3
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Changing batteries

On our 2011 Itascia Meridian we have 6 batteries. I believe you do also.
Our OEM batteries were Napa Group 31, AGM batteries. I replaced them last year with the exact same battery. Did the replacement in Tillamook,Oregon at a local NAPA dealer. I unbolted the connections, the dealer installed the new and carried the old out. AND No Sales Tax
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Old 09-27-2017, 06:02 PM   #4
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Take pictures of the wiring connections for the batteries, it could come in handy!
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
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Old 09-27-2017, 06:22 PM   #5
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Some stuff in your camper still needs 12 volts to work. Think of your battery as a shock absorber for your electric system. Your inverter puts out 12 volts but as the load changes the battery accepts part of that load then it gets recharged. Instead of replacing all the batteries just use one 12 volt. That will save you a lot of money and keep everything working as designed. As Mr. D said take pictures of how its wired now so you can put back at a later date if you want.
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Old 09-27-2017, 06:30 PM   #6
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Its a lot safer to disconnect shore power , then replace the batteries . There is much less chance of doing damage to the electronic components in your coach , and you won't have to worry about any " live " cables.
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Old 10-01-2017, 07:43 AM   #7
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Originally Posted by Mr_D View Post
Take pictures of the wiring connections for the batteries, it could come in handy!
Taking pictures is very important for sure. In addition to that and just as important is to number the batteries, label each battery terminal and each wire going to each terminal. I used a permanent marker and duct tape.

Both ends of each wire were labeled with either a +/- and the battery number it went too.

Changing the batteries is simply as long as you do your prep work and don't take short cuts. I removed all jewelry, disconnected shore power, labeled everything with redundancy and once all batteries were removed, I cleaned the area and then added a fresh coat of spray paint.

Lenny and Shawna 2015 Newmar Dutchstar 4366 43' Tag 450 Cummins, Freightliner Custom Chassis Towing a 2016 Ram 2500 4x4 Diesel 8 ft bed with Blue OX. 2014 Harley Ultra Limited with 3 Beagle Hounds
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ace, battery, replace, replacement

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