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Old 09-26-2023, 11:02 AM   #1
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Battery Overheat & Leak

Hi,

Jayco Melbourne 24 Class C

Why would my 3 year warranty starter battery fail after 1 yr 7 months of use? Napa Legend Premium.

We camped 1 night at the 7K elevation level and when we left and drove about 1 1/2 hours back to our “home” spot, we noticed a bad odor & found it to be the battery. After exposing it, (under the driver’s feet) we felt the heat from it & noticed leaking. Thank god we got home first!

I have always had problems with this chassis battery holding enough charge to start. I make sure the radio gets turned off after turning the key off. Haven’t found the drain yet. The aux starter button doesn’t always help. The house battery is new also.

Any ideas why my 3 yr warranty starter battery would overheat & leak?

Thanks.
Kathleen
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Old 09-26-2023, 11:25 AM   #2
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Generally speaking a hot battery means a cell has shorted out, and the off-gassing is hydrogen, which is explosive. Be very careful of it, and the sulfuric acid it's leaking.

I can't tell you exactly why it's failing, but it is still under warranty, and any big auto parts store can test it if you take it out and take it to them.
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Old 09-26-2023, 01:18 PM   #3
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1. Bad battery.
2. Overcharging.

I would recommend putting a voltmeter across the battery and see what your charging system is doing. Should be in mid 13s to mid 14s.
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Old 09-26-2023, 01:39 PM   #4
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Is this a MB chassis?
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Old 09-26-2023, 02:47 PM   #5
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Quote:
Originally Posted by JimD View Post
1. Bad battery.
2. Overcharging.

I would recommend putting a voltmeter across the battery and see what your charging system is doing. Should be in mid 13s to mid 14s.
X2 and as far as #1 or #2, perhaps #3 which would be both 1&2. ~CA
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Old 09-26-2023, 02:55 PM   #6
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Quote:
Originally Posted by JimD View Post
1. Bad battery.
2. Overcharging.

I would recommend putting a voltmeter across the battery and see what your charging system is doing. Should be in mid 13s to mid 14s.
Just to pile on with a "H*ll yeah.!" remark...

Taking it to NAPA or any other automotive retailer, will tell you if the battery was defective. Since it's a NAPA brand and NAPAs are like Starbucks (one almost everywhere) I'd start with them.

If the battery's not the problem, then your alternator is overcharging the battery and putting a new one in will just cause a repeat problem. Start off by having the battery checked.

If you have a multimeter handy, then checking the voltage when the engine's running is also recommended.
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