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Silver Threads · 06-21-2007, 07:23 AM

Actually, I never did let the battery run low on water. I usually check the water level every 2 weeks. I had the battery on the charger for about 3 hours, but still nothing!!

**azflycaster** · 06-21-2007, 02:23 PM

It's only a few months old, take it back, get a new one! Also, if you are going to leave it plugged in for loooong periods of time, get a new convertor. One with 3 stage charging. If you use an old univolt for loooong periods of time, you see what can happen.

Silver Threads · 06-21-2007, 02:33 PM

Yes, we are going to take it back and get a new one. Another lesson learned!!

John

rickandsandi · 06-21-2007, 02:56 PM

John,Everyone has given some really great advise, and I am sure I have read several threads here on the old univolts frying batteries. While restoring the Tradewind the first thing to go was the univolt. Run a search on the forum on univolts and I think you will find most will say to disconnect the univolt once the battery is charged.

ColdEspresso · 07-03-2007, 05:30 PM

I am in a similar situation. I have a new univolt that was installed last in my 78 Caravanner at JC along with 2 new Interstates. Fuses are fine but still no 12v. All is fine when I am plugged in but once I unplug, nothing. Is there anything I am missing?

Silver Threads · 07-03-2007, 06:27 PM

We have found out that it was the Univolt frying the battery. we have went through 2 before we figured it out though. Good thing they have warrenties,lol! Back to Wally World to trade it in!

ibgl6 · 07-03-2007, 07:15 PM

I got the other problem no 12volt when battery is disconected 110 works just fine but nothing as far as lights ect without battery????

vswingfield · 07-03-2007, 07:36 PM

Quote:

Originally Posted by Silver Threads

We have found out that it was the Univolt frying the battery. we have went through 2 before we figured it out though. Good thing they have warrenties,lol! Back to Wally World to trade it in!

Hi John and Tammy,

The univolt in my 67 boiled the battery one night. My Carbon Monoxide (CO) detector woke me in the middle of the night. My fridge was running on propane due to a corroded connection at the thermostat, and I at first thought that some strange wind had forced the exhaust back into the coach. After through ventilation dropped the CO levels to zero, I closed the coach. Alarm in 15 minutes! Point, a CO detector is vital, even if you have the propane shut off.

On another note,

Quote:

Originally Posted by overlander63

Tammy, it could simply be a dirty battery cable end. The Univolt was supplying power to the 12 volt stuff while it was plugged in, and when you unplugged it, away went the power. The load of several lights caused the battery to lose connection. So, check the battery cable ends and connections to the battery before going crazy looking everywhere else.

Terry makes an excellent point. Not only could the battery cable be corroded at battery connection, it could be corroded anywhere. I had corrosion on the Bakelite fuse connector that required replacement of it and its associated wires.

Vaughan

Silver Threads · 07-03-2007, 08:53 PM

Thanks Vaughan. I think we will look at getting a new one. We do have a CO detector. This is the second battery that we have had to replace. we never thought anything about it the first time, thought the battery was bad. This time it didnt do it until the power surge at the campground, or was it? We didnt think much about it because the man next to us lost power a couple times the day before, so we chalked it up to the campground. Now I wonder if it was.
Sam, that is the same problem we were having. Figured out the univolt is not cutting itself off when the battery is charged like it is suppose to.