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Old 03-21-2017, 09:05 PM   #1
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Excessive Charge Current alarm

Hi all,

I'm a brand new Rv-er here. My boyfriend and I impulse-bought a 1979 Minnie Winnie. Seems in good mechanical shape, but it was primarily used for living in and not for driving/boondocking (am I using the right lingo? ) so it's great while on a generator or on city power, but we're having some issues setting it up with an auxiliary deep cycle battery.

We purchased an RV/Marine deep cycle from Costco the other day (just deep cycle, not starting, had 105 AH I believe), and as soon as we connected it the "Excessive Charge Current" alarm started blinking on the power control centre. My boyfriend left the battery connected for a while with the lights on to see what would happen and the battery drained in a few hours. We exchanged the battery for a new one (still Costco, but this one is a starting/deep cycle marine/RV with 125 AH) and, when connected, the same alarm went off. We disconnected the battery for now, and I wanted to see if anyone had any idea why this is happening.

I've read through the manual (luckily they still had the 1979 Winnebago manual!) but can't find any references to Excessive Charge Current. We'd love any help you guys could give us!

Thanks!
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Old 03-23-2017, 07:48 AM   #2
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I don't know your specific coach, but I suspect the easiest way to figure out what is going on is to look at this in two pieces. There are things/devices consuming the 12vDC power, and a converter/charger charging it back up. The alarm going of is indicating the battery and loads, are drawing too much current.

At this point, you don't know whether the converter is bad, or there are too many things plugged in, or a short in the 12v load somewhere.

I'd disconnect the converter, and see if the battery can power the 12v devices by itself, all the devices work correctly, and the battery doesn't get drained. You may need an ampmeter to observe the current being consumed by loads. Once you know all of this works correctly, then you can connect your converter back up. If it fails at that point, you'll know the problem is the converter.
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Old 03-23-2017, 07:59 AM   #3
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Are you sure you do not have the cables backwards ?

Send a picture of the battery and wires and maybe someone can tell you if they are correct.
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