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gene
gene, RV Mechanic
Category: RV
Satisfied Customers: 1100
Experience:  28 yrs exp in the industry
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Have a 1998 Fleetwood American Tradition Motorhome and the

Customer Question

Have a 1998 Fleetwood American Tradition Motorhome and the batteries that start the coach keep discharging. All the other batteries that run the inside of the coach are fine.
Can you tell me what the problem is?
Submitted: 11 months ago.
Category: RV
Expert:  Randall replied 11 months ago.

When is the last time you had the batteries serviced and load tested? If they are over 3 years old there is a good chance that they aren't going to be good and hold a charge. Surface voltage doesn't tell you the actual condition. That can be just surface voltage. When you try to turn the engine over does it just click or nothing? Did you have any of the battery cables off recently? Get back to me with more information here and I can assist you further. All follow ups are included in our fee.

Customer: replied 11 months ago.
All batteries are 1 year old. Cables are okay.
Expert:  Randall replied 11 months ago.

Even brand new batteries fail quite frequently...........just had one a few days ago where one shorted out internally and ruined all the rest and they were less than a year old in a brand new coach. Were any of the cables removed recently? Were they discharged and perhaps they froze? That ruins them as well. Do you get any click when you try to start it? Gauges come on? Tracking this down if the batteries are good will take a 12 VDC test light or small digital multimeter for some testing.

Customer: replied 11 months ago.
Gauges come on. No response from turning key to start.
Expert:  Randall replied 11 months ago.

It could be any number of things and if you can get a small digital multimeter we can do some testing. I do think the batteries should be load tested to be sure they aren't the issue. Has this started since you replaced them? How long has this been sitting? Any chance mice or other critters may have gotten into this.