Dual batteries on front bumper of 2.5l - JeepForum.com

 
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post #1 of 12 Old 06-23-2013, 09:07 PM Thread Starter
heefageLA
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Dual batteries on front bumper of 2.5l

My dad wants to put two batteries on the front bumper of our 4cyl YJ...

He says that more weight on the very front of the rig will help keep the front end down; and i agree that it makes a little sense.

My opinion is that we should keep the yj light as possible and get a higher output alternator and keep the stock battery position.

Has anyone ever heard of putting batteries on their front bumper?
What are your opinions?

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post #2 of 12 Old 06-23-2013, 09:25 PM
Carlos14
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I can't imagine putting any part of your electrical system on the front of your vehicle would be a good thing.

Although the dual battery system, I am interested in.

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post #3 of 12 Old 06-23-2013, 09:26 PM
TA-YJ
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Do you mean out front of the radiator on the front bumper or just over the front axle? I don't know for sure, but I'm pretty sure a lot of states require things like batteries to be inside of the body. I wouldn't do it anyway because Id be afraid of something getting ripped off. I'd just say go with the higher output alternator and a good deep cycle battery if you want to run something like a winch.

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post #4 of 12 Old 06-23-2013, 10:50 PM
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Quote:
Originally Posted by heefageLA View Post
My dad wants to put two batteries on the front bumper of our 4cyl YJ...

He says that more weight on the very front of the rig will help keep the front end down; and i agree that it makes a little sense.

My opinion is that we should keep the yj light as possible and get a higher output alternator and keep the stock battery position.

Has anyone ever heard of putting batteries on their front bumper?
What are your opinions?
Ummmmm, no. Ask Dad to sit on the bumper instead.

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post #5 of 12 Old 06-23-2013, 11:01 PM
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Two batteries aren't going to make much of a difference in front end traction. The place you want to put more weight in a yj is in the rear. Plus it's never good to put any vital components where you will get the most damage....


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post #6 of 12 Old 06-24-2013, 12:11 AM
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post #7 of 12 Old 06-24-2013, 12:14 AM
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That's a horrible idea. I also never had a issue with the front lifting on my. 95


Install a bumper with a winch you'll have plenty of weight then.


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post #8 of 12 Old 06-24-2013, 01:35 AM
packdog
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I'm with Anticanman

You definitely want to keep the batteries out of sight (theft) and out of the weather and elements. And out of harms way when bumping into things or running through brush. That's just my opinion.

Are you really having issues with the front end lifting??

Plus it will probably be cheaper to keep them under the hood, even if you buy one of those fancy dual battery setups I've seen on the forum. There are some clever battery box setups available.

Just for general information, the battery and the alternator have completely different purposes. In a typical automotive setup the battery is only used to start the car. Once it is running the alternator supplies power to everything (plus charges the battery). You would only need to upgrade the alternator if you added accessories that consumed more power than the alternator could keep up with. So generally you don't need to consider choosing between adding a battery or upgrading the alternator.
Of course Jeeps aren't typical! So depending on what you want to use the second battery for you will want to consider the type of battery to add (deep cycle or starting battery) and whether to use an isolator or not. If you are considering adding a battery to run a winch that is a logical thing to do. Upgrading an alternator to run a winch is not so logical because of 2 reasons. 1 usually the engine isn't running when operating a winch. 2 even if the engine was running you would have to rev up the engine in order to get the alternator to supply enough power to run it. Plus you would need to upgrade the alternator wiring to really large gauge wire to use all that power.

Hope that helps you through your thought process.
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post #9 of 12 Old 06-24-2013, 06:44 AM Thread Starter
heefageLA
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Thanks for the comments fellas. The reason behind him wanting dual batteries is when we are winching it pulls the engine down. We dont have any problem with the front end coming up, and honestly we dont have any problem with the battery thats in there.
We have a standard trans. with a hand throttle on the shifter. When winching, all you have to do is rev up the motor with the hand throttle. It acts like a redneck cruise control and keeps the motor at that RPM, then you can winch away with no problem.
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post #10 of 12 Old 06-24-2013, 07:16 AM
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Quote:
Originally Posted by packdog View Post
You definitely want to keep the batteries out of sight (theft) and out of the weather and elements. And out of harms way when bumping into things or running through brush. That's just my opinion.

Are you really having issues with the front end lifting??

Plus it will probably be cheaper to keep them under the hood, even if you buy one of those fancy dual battery setups I've seen on the forum. There are some clever battery box setups available.

Just for general information, the battery and the alternator have completely different purposes. In a typical automotive setup the battery is only used to start the car. Once it is running the alternator supplies power to everything (plus charges the battery). You would only need to upgrade the alternator if you added accessories that consumed more power than the alternator could keep up with. So generally you don't need to consider choosing between adding a battery or upgrading the alternator.
Of course Jeeps aren't typical! So depending on what you want to use the second battery for you will want to consider the type of battery to add (deep cycle or starting battery) and whether to use an isolator or not. If you are considering adding a battery to run a winch that is a logical thing to do. Upgrading an alternator to run a winch is not so logical because of 2 reasons. 1 usually the engine isn't running when operating a winch. 2 even if the engine was running you would have to rev up the engine in order to get the alternator to supply enough power to run it. Plus you would need to upgrade the alternator wiring to really large gauge wire to use all that power.

Hope that helps you through your thought process.
Umm Me and everyone I know keep the engine running whenever possible when using our winches. The reason to upgrade the Alt is to recharge the batteries faster after things like winching. No alt puts out enough power to run the winch. Mine pulls up to 600 amps. You find me a YJ alternator for under 10 grand that can do that and we can revisit. You did give alot of good info there up until the end though. The other exception is if you are adding a battery it is probably a good idea to upgrade the alt. You are adding a battery for a reason but it will be useless if you cant charge it back up fast enough. So in conclusion upgrading the alt will cover issue's like some extra lights. But if you are adding a second battery I cant think of many situations you wouldnt upgrade the alt as well. If you keep an Alt running at max all the time its life will be short.


To the OP. Batteries on the bumper are a very very bad idea and no good will come of it. Keep them in the body as intended there is a reason you dont see batteries mounted to bumpers. If it was a good idea there would be a bandwagon here on the forum for it.

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post #11 of 12 Old 06-24-2013, 11:16 AM
superj
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i think they hid the batteries on pt cruisers in the front bumper. get in a little fender bender and there goes your ability to start your vehicle

I don't feel like working on anything at this time so i sold my yj.
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post #12 of 12 Old 06-24-2013, 11:26 AM
pasinbuy
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Batteries have acid in them. Breaking a battery is not good especially in a accident.
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