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Got the batteries installed yesterday. All is well.
Even with every breaker off, disconnected from shore power, both battery disconnect switches off and engine battery negative cable removed, there was still a small spark when I attached the main negative cable to the battery bank. My friend in Las Vegas, with same setup, said this also happened to him.
My original batteries were NAPA 9831DT, Group 31, 105AH. (Currently $292 + tx@NAPA).
I replaced them with Duracell Platinum AGM, 31DTMAGM, Group31, 105AH. ($179.74 +tx@Sams Club)
This coming March would have been 8 yrs of service, we fulltime. Other than looking at my setup out of curiosity after we bought the coach, they had not been attended to since. There was no corrosion on cables or battery tops. The sides of the batteries were slightly bulged. The tops were dry but very dusty, as they are installed between the main chassis rails, just below the floor of the pass thru bay.
These batteries weight 69#/each. My friend used a boat trailer winch, attached to the bay overhead to change his out. He said it was a 4 hour job by himself, recommended I have someone else do it. I heeded his advice. After I removed all the cables and tiedown straps the maintenance man where we stay crawled into the bay and replaced them by hand. My son and I moved the old ones from bay floor and slid the new ones in for him. Took about 20 min. I then reconnected the cables and tiedown straps.
Now will have to see how long before I need to replace the 2 engine batteries, which will be a lot easier to do myself.
Dan & Sharon (Kasey-Our Yorkie Puppy RIP 9Jan05-26Jul17) On the Road (2012 Journey 36M, 2006 Jeep Liberty)
USN-Ret ('65-'93) Fulltimers, Class of 2012
I did the same thing with my 4 Group 31 12V batteries,changed them for the AGM's you got. I traded my coach three weeks later. But I was told that I should have reset the system to charge the AGM's at a different rate. I didn't get the chance. Has anyone else heard this?
Don & Deb, PBGV's Harry, Nimrod & Watson. 2020 Holiday Rambler Endeavor 38W. 2015 Chevy Captiva. Roadmaster towbar and base plate, SMI Duo Stay & Play brake
"Wherever you go, there you are!"