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Old 04-28-2013, 06:08 PM   #1
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Question Trailer Battery

Anyone know how long a trailer battery is supposed to last for....I just got a new trailer and when I went to move it the battery was dead....I charged it again left for a week....when I came back the battery was dead again...

Is this normal or is it possibly because I left something on?
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Old 04-28-2013, 06:10 PM   #2
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There is no set rule. After 2-3 yrs they start going down if not kept up.
*You're converter may not be working.
*There may be a battery disconnect turned off.
*Battery may have low water.
*May have bad connections/no connections.
*Bad cell.
*Or something was left on.
Too many variables and not enough info to really give you an answer.
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Old 04-28-2013, 06:20 PM   #3
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battery drainage

Quote:
Originally Posted by jesilvas View Post
There is no set rule. After 2-3 yrs they start going down if not kept up.
*You're converter may not be working.
*There may be a battery disconnect turned off.
*Battery may have low water.
*May have bad connections/no connections.
*Bad cell.
*Or something was left on.
Too many variables and not enough info to really give you an answer.
It was working after the first time I charged it.........I pulled the battery fuse after the first time hoping that the battery wouldn't drain and it still did....Do you disconnect the battery every time when it's not being used and parked? I'm new at this (you can probably see that)
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Old 04-28-2013, 07:19 PM   #4
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There are diff fuses for/near the batt.
One up front is prob for jack.
Well, if you're using the battery for something, leave it. If you aren't needing it, you don't necessarily have to unhook.
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Old 04-28-2013, 07:39 PM   #5
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Just to clarify, yes, you NEED the trailer battery to be charged. In case of a breakaway, the trailer battery is what powers the trailer brakes to stop the trailer. That's the primary reason the battery is there.

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Old 04-29-2013, 01:03 AM   #6
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It may just be toasted from discharging it too deeply a couple of times.

Do check for a power drain, make sure you didn't leave the breakaway switch on or a light on in one of the storage compartments. I can leave mine connected for several weeks before needing to recharge it with the battery just powering the propane detector and stereo backlight. I use two 6V GC2 batteries.
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Old 04-29-2013, 11:41 AM   #7
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Do yourself a favor and read this: The RV Battery Charging Puzzle HandyBob's Blog

I read every last word of every page. He knows what he is talking about and you'll learn a lot.
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Old 04-29-2013, 01:33 PM   #8
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Thanks for your help seems like I got it sorted out now
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Old 04-29-2013, 07:10 PM   #9
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Thanks for your help seems like I got it sorted out now
??? Sooooo what was it?
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Old 04-29-2013, 07:34 PM   #10
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I'm new to rving so when I pulled the fuse it I thought it was for the battery because the jack didn't work...however it was for the jack I realize now from the suggestions. The battery drained because I don't have a battery disconnect and didn't disconnect the negative....thanks for your help I've just charged the battery up and all is in good working order
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