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dshinnick's avatar
dshinnick
Explorer
Jul 25, 2016

Replace house batteries?

I posted a question yesterday regarding the fact that the largest slide in my 2005 40' DP was barely able to come in the last two times, once when I was on shore power, and once when the gen was running.

Folks have suggested that the slide motor might be going out, or that the batteries need to be replaced. They are the Duracell GC2 with a sticker of "10/8" on them, indicating to me that they are nearing 8 years old. I water them frequently.

I don't mind replacing them, but would hate to do so only to find that they were fine all along! So the question is, how do I test them to make sure? Take one to a garage and have them stress-test it? And if I do remove one, do I need to shut off the entire electrical system, or just remove one and make sure the contacts aren't touching? We're currently in a park with full hookups.

Thanks!

12 Replies

  • No brainier, change them. Five years is good, past that is great. Sounds like batteries. Just change six myself.
  • Measure the battery voltage when the room is moving. If you see a dramatic loss of voltage then you likely need to replace them. This assumes you have the battery charger running (hooked up or on generator). The battery voltage should be in the 13+V range before the slides move and should remain in the 12.5 - 12.3V range with the slides moving and return quickly to 13+V when the slide stops.