Dual Batteries

jeepmedic46 · **Posted:** Sun Aug 09, 2009 9:19 pm

I would like to put dual batteries in my KJ. Are there any manufactures for this and would I need to install a bigger alternater?

JL Rockies · **Posted:** Sun Aug 09, 2009 9:36 pm

Why do you need a dual battery set up?

jeepmedic46 · **Posted:** Sun Aug 09, 2009 9:43 pm

Thinking of going thru Canada to the Arctic circle.

jeepkj02 · **Posted:** Sun Aug 09, 2009 10:07 pm

Not too much room in the engine bay, could mount it in the back cargo area or under the seat.

JL Rockies · **Posted:** Sun Aug 09, 2009 10:16 pm

OK, I know lots of people in AK that drive up to the arctic circle with one battery..... In fact I be most residents of the area do not have dual batts? Or are you saying it's Canadian Law?

stumpjumper_09 · **Posted:** Sun Aug 09, 2009 10:23 pm

why does it matter? Dude wants more power............

JL Rockies · **Posted:** Sun Aug 09, 2009 10:25 pm

Great... cause if he wants more power, a dual batt system will yield less power than he has now...... That's why......

Jeepjeepster · **Posted:** Sun Aug 09, 2009 10:40 pm

JL Rockies wrote:

Great... cause if he wants more power, a dual batt system will yield less power than he has now...... That's why......

Say what? Maybe he has things that he is wanting to run while the Jeep is off. Thats the only reason I can ever see that you would need an extra battery.

Other than putting it in the cargo area you really dont have too many options. You should not need a bigger alternator.

jeepmedic46 · **Posted:** Sun Aug 09, 2009 10:41 pm

Wasn't sure if I needed a extra battery to help start in the extreme cold. and if I needed to winch myself out of anywhere. If I stayed with the single battery what would be a good battery to get?

tjkj2002 · **Posted:** Sun Aug 09, 2009 10:44 pm

icefisher45 wrote:

Wasn't sure if I needed a extra battery to help start in the extreme cold. and if I needed to winch myself out of anywhere. If I stayed with the single battery what would be a good battery to get?

Loving mine so far.....................

http://www.odysseybatteries.com/battery/pc1500series.htm

stumpjumper_09 · **Posted:** Sun Aug 09, 2009 10:48 pm

REALLY? Is that why large trucks run multiple batteries? Chevy put 2 batteries in the K3500 for the tow package and the plow packages. In car audio competition we have run up to 4 batteries in one car to have enough stored energy to run high powered DC Amps.

CRD Joe · **Posted:** Sun Aug 09, 2009 10:52 pm

tjkj2002 wrote:

icefisher45 wrote:

Wasn't sure if I needed a extra battery to help start in the extreme cold. and if I needed to winch myself out of anywhere. If I stayed with the single battery what would be a good battery to get?

Loving mine so far.....................

http://www.odysseybatteries.com/battery/pc1500series.htm

Yo TJ, is there room for that battery in your engine room? They are awefully big.

tjkj2002 · **Posted:** Sun Aug 09, 2009 10:56 pm

stumpjumper_09 wrote:

REALLY? Is that why large trucks run multiple batteries? Chevy put 2 batteries in the K3500 for the tow package and the plow packages. In car audio competition we have run up to 4 batteries in one car to have enough stored energy to run high powered DC Amps.

Diesels run a 24 volt starter,hence the need for 2 batteries for the starter(same goes for big rigs).

You have to exceed the alternators amp output before you are using the battery power.Adding a higher amp alternator on a KJ is useless since the PCM controls the alternator and does not know that you put a higher amp alternator so it will not use the available amps(it will actually cut down the power since it senses overcharging).

You can add a extra battery and use a isolator so it it totally not part of the system until you need it from discharging the OEM battery in the system(running stuff with the engine off).

tjkj2002 · **Posted:** Sun Aug 09, 2009 10:57 pm

CRD Joe wrote:

tjkj2002 wrote:

icefisher45 wrote:

Wasn't sure if I needed a extra battery to help start in the extreme cold. and if I needed to winch myself out of anywhere. If I stayed with the single battery what would be a good battery to get?

Loving mine so far.....................

http://www.odysseybatteries.com/battery/pc1500series.htm

Yo TJ, is there room for that battery in your engine room? They are awefully big.

Barely but I made it fit

,last time I ran a test on it it it returned 1298CCA's.

jeepmedic46 · **Posted:** Sun Aug 09, 2009 11:05 pm

Thank you, I will have to see if I can get it shipped to Mass. No dealers out here.

stumpjumper_09 · **Posted:** Sun Aug 09, 2009 11:10 pm

The truck that i was thinking of was my 95 k3500 4x4 with 454. 12 volt system same as kj.

tjkj2002 · **Posted:** Sun Aug 09, 2009 11:12 pm

icefisher45 wrote:

Thank you, I will have to see if I can get it shipped to Mass. No dealers out here.

Got a Battery's Plus store near by? They can get them. Or you can go to Sears,Odyssey makes there Platinum series batteries but just in gray instead of red.

tjkj2002 · **Posted:** Sun Aug 09, 2009 11:13 pm

stumpjumper_09 wrote:

The truck that i was thinking of was my 95 k3500 4x4 with 454. 12 volt system same as kj.

The OEM system for that '95 was one battery,it was modified or had the ultra rare dual setup ment for camper shells.

stumpjumper_09 · **Posted:** Sun Aug 09, 2009 11:16 pm

2 batteries in parellel will yield 12vdc. 2 batteries in series will yield 24vdc

stumpjumper_09 · **Posted:** Sun Aug 09, 2009 11:19 pm

How about something even more ultra rare where you realize that your way isn't the only or best.

Dual Batteries

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