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Old 01-08-2016, 03:06 PM   #1
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2016 30' Classic
Austin , Texas
Join Date: Aug 2015
Posts: 43
Baffled by Batteries

Bought a 2016 Classic in November. Used it 3 times in November, then winterized and parked in storage the first week of December. Did not hook to shore power. Went out early this week, batteries dead so plugged in and things came back to life. Had some concerns about the single stage charger, but kept on for a few days. Went back today and:

1. Still plugged into shore power at storage facility. DC working in trailer.
2. Wanted to first check voltage of batteries and it was 2.5 V. That surprised me. To the point that I didn't know if my fluke multimeter was set to the right mode. Lifted the hood of the truck and it read 12.8 as expected. Back to the trailer and 2.5 V. Not good.
2. Went back inside, check power monitor function in galley and it said 13.8. Hmmm. Where is this picking up the voltage from? Direct from converter?
3. Back outside, disconnected shore power and as expected ... everything went dark.
4. Checked fluid level in batteries. All good.
5. Hooked up 7 pin connector to the trailer from truck. Still 2.5V.
6. Jack inoperative even with shore power on.

The surprising thing to me was that the power monitor in galley was saying 13.8 V from converter, but not seeing that at all at the battery.

What else should I try? At this point, I'm not sure that the charger was ever connected to the battery from either the converter or the 7 pin connector.

Will use a standard battery charger and/or remove the batteries and take to Interstate, but the question remains whether they are even connected properly to get recharged. In the first month, we were definitely using batteries only for DC and jack worked fine.

Thoughts? Thanks for all the help.


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Old 01-08-2016, 03:13 PM   #2
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2016 25' Flying Cloud
Jupiter , Florida
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I don't know the answer to what happened, but I am curious if you left the batteries in store or use mode while it was in storage.

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Old 01-08-2016, 03:27 PM   #3
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2016 30' Classic
Austin , Texas
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Store mode when in storage (disconnected from shore power) ... 4 weeks. Use mode when in storage (connected to shore power so batteries would charge) ... 4 days.
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Old 01-08-2016, 03:40 PM   #4
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Naples, FL , Hood River, OR
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Look at the solenoid that is part of your battery disconnect system. When placed in 'USE' mode, the solenoid contacts should close and allow the converter voltage (assuming shore power) to reach the batteries for charging.

Your batteries were depleted by internal parasitic loads in the trailer as the USE/STORE switch does not isolate all of these loads from your batteries.

At this point, your batteries are probably toast and need to be replaced!!

Your Jack would not work as its 12 VDC power comes directly from your batteries. If no converter voltage is reaching them........ No jack, but the converter will still power all of the DC loads in your fuse box.

Lew Farber
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Old 01-08-2016, 04:47 PM   #5
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2016 30' Classic
Austin , Texas
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Posts: 43
Will check solenoid. Thanks. What about from the truck? Wouldn't I have expected to see that voltage across the battery?

Likely I'll make a trip to the dealer to make sure this is all sorted.
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Old 01-08-2016, 05:10 PM   #6
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2015 30' Classic
Pleasanton , California
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The 12V connection (7-pin receptacle) on your TV is fused. Check to make sure your fuse is present (some folks have reported the fuse missing) and verify the fuse is OK by checking continuity. If the batteries were at 2.5V it's possible that your fuse blew when you connected the TV to the AS.
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Old 01-08-2016, 05:30 PM   #7
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Westchester Cty.NY , / Miami FL
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the older classics had just an on/off switch without a relay. if they now use a relay, you may need to charge the batteries out of the trailer to get the voltage high enough to activate the relay.
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Old 01-08-2016, 06:43 PM   #8
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2016 30' Classic
Austin , Texas
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Thanks to all for several things to take a look at.
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Old 01-10-2016, 05:16 PM   #9
2 Rivet Member
2016 30' Classic
Austin , Texas
Join Date: Aug 2015
Posts: 43
A followup to my original post. Good news as I was able to recharge the batteries using an external battery charger (Schumacher Speedcharger 10030). Once charged back up, then I could set the battery disconnect to "USE" and then when plugged into shore power, I saw the 13.8 V from the converter charger on the battery posts. Still a couple things to sort out:

- why did the 7 pin connector not indicate charging from the truck
- ultimate switch from the single stage Parallax charger to multistage

But happy I don't need to deal with replacing batteries yet.

The whole battery maintenance & charging process could be documented & implemented better.

Thanks again for the help!

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