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Old 12-17-2017, 03:03 PM   #1
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Chaparral 336tsik Inverter Question - Dead Battery

We brought our new 2018 Chaparral 336tsik last Saturday. Parked her in the storage lot with the Jacks Down and turned the battery switch off. The next day I decided to raise the jacks and get her ready for indoor storage. The battery was so low it would not raise the jacks and lights were very dim.

I charged up the battery and reinstalled it. Once connected the inverter kicked on. Would the inverter cause a dead battery?

My wife is quite certain that the fridge is off. Any thoughts or ideas why I had a dead battery in a 24 hour window?

Thanks everyone
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Old 12-17-2017, 04:05 PM   #2
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Are you sure the battery disconnect switch is working properly?
Have you checked the battery on load or each cell with a hydrometer.?
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Old 12-17-2017, 04:16 PM   #3
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there could be many issues. the factory installed battery disconnect typically does not disconnect all loads from the battery when it is set to the disconnect position. there is typically some small draws for sensors and things, but they should not kill a battery in 24 hours. there is also much confusion about the terms on and off for the disconnect switch. some switches are wired so they disconnect the battery when the switch is off. some disconnect the battery when the switch in on (the disconnect is on). you said you turned your switch off but the next day the lights were weak. you did not say if you turned the switch back on before you tried the lights so we don't know how your switch is wired. then of course the batteries may not have even been fully charged. you just brought it home, how do you know they were fully charged when you drove it off the dealer lot? nor do we know how many and what type of batteries you have.


you mention an inverter. what is it used for. you also mention a refrigerator. do you have a residential refrigerator powered by the batteries through an inverter. typically in this configuration the inverter is wired directly to the batteries and is not affected by the position of the battery disconnect switch. if you had the refrigerator on and were powering it via the inverter most probably you drained the batteries. this can be done in less than 24 hours. some configurations won't last overnight. our inverter is dedicated to the refrigerator. the invertor has and on-off switch and the refrigerator has an on/off setting. but even when the refrigerator is set to off it still draws some power through the inverter. if not using the refrigerator, turn the inverter off.


I know this is a lot and I went through all this a few year ago when we brought our trailer home. it will take some experimenting and learning, but you will learn and understand.
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Old 12-17-2017, 04:19 PM   #4
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Quote:
Originally Posted by bikendan View Post
Are you sure the battery disconnect switch is working properly?
Have you checked the battery on load or each cell with a hydrometer.?


Hi. Yes the battery disconnect switch was in the off position. Charged the battery and as soon as I hooked it back up the inverter started running with the disconnect in the OFF position.

A load test and is next on the list. Brand new camper and brand new battery. Battery could be bad or not fully charged when they put it in. Just makes me wonder with the inverter on how much did it drawer down the battery (residential fridge was turned off).
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Old 12-17-2017, 04:50 PM   #5
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there could be many issues. the factory installed battery disconnect typically does not disconnect all loads from the battery when it is set to the disconnect position. there is typically some small draws for sensors and things, but they should not kill a battery in 24 hours. there is also much confusion about the terms on and off for the disconnect switch. some switches are wired so they disconnect the battery when the switch is off. some disconnect the battery when the switch in on (the disconnect is on). you said you turned your switch off but the next day the lights were weak. you did not say if you turned the switch back on before you tried the lights so we don't know how your switch is wired. then of course the batteries may not have even been fully charged. you just brought it home, how do you know they were fully charged when you drove it off the dealer lot? nor do we know how many and what type of batteries you have.


you mention an inverter. what is it used for. you also mention a refrigerator. do you have a residential refrigerator powered by the batteries through an inverter. typically in this configuration the inverter is wired directly to the batteries and is not affected by the position of the battery disconnect switch. if you had the refrigerator on and were powering it via the inverter most probably you drained the batteries. this can be done in less than 24 hours. some configurations won't last overnight. our inverter is dedicated to the refrigerator. the invertor has and on-off switch and the refrigerator has an on/off setting. but even when the refrigerator is set to off it still draws some power through the inverter. if not using the refrigerator, turn the inverter off.


I know this is a lot and I went through all this a few year ago when we brought our trailer home. it will take some experimenting and learning, but you will learn and understand.


Thanks. You share a lot of great information. When the disconnect switch is in the OFF position the lights will not come on. If it's set up like our MH was when you turn the disconnect to off it cuts all DC pose to the camper.

The residential fridge was turned off but I didn't realize that it still draws juice. You are correct that the battery (new) may not have been fully charged even with a two hour drive home with her.

I did find a junction Bloch which the positive lead for the battery was loose. Maybe not getting a full charge from my truck. I did turn the inverter off.

I'll find out tomorrow as I'm taking her to an indoor storage facility. I'll know then if I have a charged battery.

Thanks again.
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Old 12-17-2017, 05:32 PM   #6
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there have been many posts about the battery disconnect switch not cutting all power. many people, myself included, have installed a true disconnect switch that cuts all power. I have my trailer in storage with no shore power and the batteries keep their charge just fine for a month or so when they are fully disconnected.


if the residential refrigerator is off it will not run the large power consuming compressor motor, but it still draws some power to keep the control board on so you can press a button and turn it back on.


there have been many, many posts about batteries and residential refrigerators.
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Old 12-17-2017, 05:35 PM   #7
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Originally Posted by CHICKDOE View Post
there have been many posts about the battery disconnect switch not cutting all power. many people, myself included, have installed a true disconnect switch that cuts all power. I have my trailer in storage with no shore power and the batteries keep their charge just fine for a month or so when they are fully disconnected.


if the residential refrigerator is off it will not run the large power consuming compressor motor, but it still draws some power to keep the control board on so you can press a button and turn it back on.


there have been many, many posts about batteries and residential refrigerators.


Interesting points. She'll be going into heated storage tomorrow and won't be coming out until April 7th. I wonder if I should disconnect the positive terminal while in storage or put a battery tender on it.
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Old 12-18-2017, 04:41 PM   #8
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Originally Posted by Jmsx2 View Post
We brought our new 2018 Chaparral 336tsik last Saturday. Parked her in the storage lot with the Jacks Down and turned the battery switch off. The next day I decided to raise the jacks and get her ready for indoor storage. The battery was so low it would not raise the jacks and lights were very dim.

I charged up the battery and reinstalled it. Once connected the inverter kicked on. Would the inverter cause a dead battery?

My wife is quite certain that the fridge is off. Any thoughts or ideas why I had a dead battery in a 24 hour window?

Thanks everyone
Are you sure it is an inverter, a thing that changes 12v into 120v? I would think it would be a converter/charger, a different beast. And yes, a factory installed battery disconnect would most probably not turn everything off. Some devices like the fridge, need a constant 12v to supply the control panel. You turn off the fridge by either hitting the OFF button on the panel (which uses the 12v) or pulling the plug.
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Old 12-18-2017, 05:16 PM   #9
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Interesting points. She'll be going into heated storage tomorrow and won't be coming out until April 7th. I wonder if I should disconnect the positive terminal while in storage or put a battery tender on it.
Charge it fully overnight....then remove all wires on the negative post. Or buy the 7 buck Walmart terminal post disconnect. .to accomplish the same thing. A disconnected fully charged battery will last at least 3 months before charging needed... Longer in cold weather . Will not freeze if fully charged for similar time.
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Old 12-18-2017, 05:39 PM   #10
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Are you sure it is an inverter, a thing that changes 12v into 120v? I would think it would be a converter/charger, a different beast. And yes, a factory installed battery disconnect would most probably not turn everything off. Some devices like the fridge, need a constant 12v to supply the control panel. You turn off the fridge by either hitting the OFF button on the panel (which uses the 12v) or pulling the plug.


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Thanks for responding to our post. I've attached a photo of the inverter that kicked in the moment I connected the battery. It's right next to the battery in the front compartment.
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