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greg1961
12-30-2020, 09:49 AM
we have a 2004 sun voyager class a when plugged into 120v the coach batterys smell like acid and over charge any ideas why. thanks

Dennis4809
01-10-2021, 09:48 AM
Can you see evidence that the batteries are boiling over? If you can smell the acid, most likely you’d see wetness around the battery caps. If you have a voltmeter, you could check the voltage at the batteries when plugged in but either way, I’d suspect that your inverter/charger is overcharging the batteries and will need replaced. Newer versions have much closer control over the charging voltage so as not to overcharge.

Good luck,

Cleverman
01-10-2021, 11:39 AM
we have a 2004 sun voyager class a when plugged into 120v the coach batterys smell like acid and over charge any ideas why. thanks

I had the same problem.it smells like ritton eggs. I checked the System and found that
1 Batterie was bad. I could feel that it was a lot warmer when gettig charged than the other one. I bougt 2 new ones and changed them. I assume one batterie had a short.
The charger was ok.
this happended 1 year ago . never had a problem since wit this.
greetings from Germany stay healthy
charles:)

sun voyager 2005
bought in Los Angeles 2019 and shipped to Germany