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Old 05-15-2016, 11:41 AM
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How long can you run a box fan on the power outlet?

Not sure if our batteries in the diesels are different from non diesel jeeps.

Going camping for four days. Would I be able to run a box fan for a couple hours a day for four days on the outlet in the middle console without the battery dying?

Bringing a battery jumper to be safe, but just curious.

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Old 05-15-2016, 12:07 PM
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Quote:
Originally Posted by hillmanj08 View Post
Not sure if our batteries in the diesels are different from non diesel jeeps.

Going camping for four days. Would I be able to run a box fan for a couple hours a day for four days on the outlet in the middle console without the battery dying?

Bringing a battery jumper to be safe, but just curious.
I'd be careful. These are AGM batteries and have very specific jumping specs.
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Old 05-16-2016, 01:11 AM
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Re: How long can you run a box fan on the power outlet?

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Originally Posted by definn12 View Post
I'd be careful. These are AGM batteries and have very specific jumping specs.
Where do you find the jumping specs? I just bought one of those tiny lithium ion jump boxes.
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Old 05-16-2016, 07:16 AM
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Quote:
Originally Posted by Governor View Post

Where do you find the jumping specs? I just bought one of those tiny lithium ion jump boxes.
I don't know if jeep has special specs. But AGM batteries in general do and I know there are special chargers for em. If you Google "AGM jumping battery" or something to that affect you should get some info.
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Old 05-16-2016, 10:09 AM
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Re: How long can you run a box fan on the power outlet?

To answer your question what is the amp draw for the fan and I am assuming 120 VAC?
I would not let your battery drop below 12 VDC so you can start the Jeep and charge it back up.
So let's say your fan pulls 3 amps running times 120 VAC you will consume 360 watts of power. Batteries are rated on amp hour draw but checking your battery voltage after an hour should give you some idea of where you are at from 12.6-7 voltages fully charged.


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Old 05-16-2016, 03:31 PM
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Re: How long can you run a box fan on the power outlet?

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Originally Posted by definn12 View Post
I'd be careful. These are AGM batteries and have very specific jumping specs.
I don't see anything in the owners manual about jump-starting procedures that is unique to AGM batteries. Some AGM batteries may have specific charging requirements while manufacturers just say to use the "normal" setting on a trickle charger.
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Old 06-21-2016, 09:00 AM
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Re: How long can you run a box fan on the power outlet?

I would not expect to be able to run a 110vac fan from a 12vdc battery for more than a few hours. Inverters aren't magic, all of the incur a certain amount of loss and that's usually translated as heat. I've never seen specs on the inverter used in the Jeep. But for our boat, which has THREE 12vdc batteries I rarely see better than a day's time running AC devices through an inverter.

I think the expectation is you're using the inverter to power devices based on the engine being running and providing 12vdc to it. Not as a big-ass battery.

If you really want AC power while camping then you'd be much better served getting an ultra-quiet Honda 2000-series generator and a 50' extension cord.
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Old 06-21-2016, 08:13 PM
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Re: How long can you run a box fan on the power outlet?

The big problem with what you are proposing is the extent to which you drain the battery. Even in deep cycle batteries, which this isn't, there's a percentage of depletion that you shouldn't pass or you will damage the battery. So as was mentioned before, don't let it drop too many volts. so yeah, get a honda inverter or a HFT predator for 40% of the price. You could also get a couple deep cycle batteries and an inverter and run that box fan as much as you want.
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Old 06-28-2016, 02:33 PM
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Re: How long can you run a box fan on the power outlet?

Quote:
Originally Posted by hillmanj08 View Post
Not sure if our batteries in the diesels are different from non diesel jeeps.

Going camping for four days. Would I be able to run a box fan for a couple hours a day for four days on the outlet in the middle console without the battery dying?

Bringing a battery jumper to be safe, but just curious.
Have you considered getting a 12v fan? Lots of good ones around now.....
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Old 06-28-2016, 03:12 PM
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Re: How long can you run a box fan on the power outlet?

thanks for the replies everyone. I just didn't know if maybe diesels had something special. I ended up just getting an ultra quiet generator.

But looking back, I probably should have looked into ponying up the money for a solar panel to put on top of the jeep. That would have been pretty sweet.
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