Dual battery setup help

swalker · 07-17-2003, 09:47 PM

Just wondering if anyone has any drawings or links ot pages that would help with installing a dual setup. Just want to make sure i do it right.

roke40 · 07-17-2003, 10:19 PM

BTT. I'd like to see that too.

96ShibbyXJ · 07-17-2003, 10:43 PM

i was interested in this too....search google for hellroaring battery isolators....or wait, just go here http://www.hellroaring.com/4wheel.htm
thats pretty informative about basic stuff. i belevie northwest offroad also does some dual setups....if you get any progress made be sure to post back and let us know how you did it! also might wanna check out J+C's HD battery cables ( http://www.jeepersandcreepers.com/ge...powercable.htm )
HTH
-Ben

Scriff · 07-17-2003, 11:14 PM

http://www.imajeep.com/dual_bat/dualbat.htm

just use one extra battery instead of three

redwolf · 07-17-2003, 11:27 PM

The guys at MAD XJ have a good writeup on mounting a battery where the stock airbox used to be.
Relocating the Battery

99XTRMEXJ · 07-18-2003, 12:31 AM

MAKE SURE YOU WIRE IT SO IT'S 12V NOT 24V!!!!!

You'll fry everything in the Jeep if you do!

storydude · 07-18-2003, 01:24 AM

If you are looking for more Amperage, Wire it pos to pos, Neg. to Neg. You DO NOT want the Batteries wired in Series.

Red to red, Black to Black.

Aaron

penberth · 07-25-2003, 12:53 AM

Quote:

-=- originally posted by redwolf -=-
The guys at MAD XJ have a good writeup on mounting a battery where the stock airbox used to be.
Relocating the Battery

I called the dealership today asking about the diesel battery tray that MADXJ used...$63.00?!?!? Seems way high for a piece of plastic.

Also, what type of switch are people using to switch between the two batteries? I see that Hellroaring Tech has one, and Wrangler Power Northwest http://www.wranglernw.com/ has one.

A while ago, someone posted this dual batt pic:

Anyone know who's rig this is? He has a nice set up.

Seems like a lot of these dual battery XJ threads die somewhat quick. No one really interested?

Steve F · 07-25-2003, 02:27 AM

Checkout XJ dual battery

It's an Australian site and dual batterys are common here more for touring setups than anything else. My XJ will be getting this along with a 50lt Fridge in the rear

Remember when it says drivers side it's passenger for you guys.

Cheers
Steve

Pred8tr · 07-25-2003, 03:25 AM

I've seen lots of people talking about the space requirements of dual battery setups in XJs but I've yet to see anyone use a Dynabatt in an XJ. I've seen it in a CJ. You could easily fit two of these in the space of 1 standard battery and tehy are about the same money as a Yellowtop.

http://www.performancedistributors.com/batteries.htm

Pred8tr · 07-26-2003, 03:51 AM

btt

penberth · 07-26-2003, 09:44 AM

Quote:

-=- originally posted by Pred8tr -=-
I've seen lots of people talking about the space requirements of dual battery setups in XJs but I've yet to see anyone use a Dynabatt in an XJ. I've seen it in a CJ. You could easily fit two of these in the space of 1 standard battery and tehy are about the same money as a Yellowtop.

http://www.performancedistributors.com/batteries.htm

That's definitely a cool idea. Has anyone else heard of these batteries or used them? One of the reasons I was looking into dual battery setups was because I have two red top batteries. Anyone else have a dual battery setup they would like to show?

Pred8tr · 07-27-2003, 03:36 AM

Boy! This thread sure is gettin' lots of attention.

1BeatnZJ · 07-27-2003, 05:11 PM

bump!

Bender · 07-27-2003, 06:45 PM

Here's a homebrew setup using parts from a local electronics shop and welding supply stores.

http://community.webshots.com/album/67867694oRFTUv

Just a note.... in my schematic (yeah, yeah I know I should make up a "real" one some day) I show a diode being used between the red top and alternator as well as between the blue top and alternator. This was to isolate the batteries from one another preventing one from discharging into the other.

Oh, also I made the starter look like a battery... not sure why but I did. The thing labelled "starter" is the...... well.. the starter and not a battery.

For some reason when I tried this method the alternator wasn't functioning properly so I had to remove the diode to the blue top (accessory battery). Now if by chance my redtop dies the blue top will discharge back into the red. Until I find a solution to the diode problem I can live this this as the red top is ONLY used during starting so it sees very little use so I'm not to worried about it crapping out any time soon.

07-17-2003, 09:47 PM	#1
swalker Registered Join Date: Jan 2003 Posts: 90 Thanks: 0 Thanked 0 Times in 0 Posts	Dual battery setup help Just wondering if anyone has any drawings or links ot pages that would help with installing a dual setup. Just want to make sure i do it right. __________________ 90 XJ sport, intake, lights, glasspack, 3" lift, homebrew discos

07-17-2003, 10:19 PM	#2
roke40 Registered Join Date: Aug 2001 Location: Havre de Grace, MD Posts: 179 Thanks: 0 Thanked 0 Times in 0 Posts	BTT. I'd like to see that too. __________________ 98 XJ Sport, 4.0 Auto, NP231 w/AA SYE and custom rear shaft Combo front - RE 3.5" ZJ coils w/ACOS, Rear 4.5" RE w/ORGS boomerang shackles, ORGS WJ trackbar conversion, JKS discos 33x12.50 MTRs on MT Challengers Rocky Road RockRails, Tomken Gas Tank Skid, Rusty's Crossmember & T-case Skid Powertrax No-Slip locker in rear Superwinch EPi9.0 winch in Rigidco Front Bumper

07-17-2003, 10:43 PM	#3
96ShibbyXJ Registered Join Date: Jul 2002 Location: Raleigh, NC Posts: 544 Thanks: 0 Thanked 0 Times in 0 Posts	i was interested in this too....search google for hellroaring battery isolators....or wait, just go here http://www.hellroaring.com/4wheel.htm thats pretty informative about basic stuff. i belevie northwest offroad also does some dual setups....if you get any progress made be sure to post back and let us know how you did it! also might wanna check out J+C's HD battery cables ( http://www.jeepersandcreepers.com/ge...powercable.htm ) HTH -Ben __________________ 98 XJ Limited 4.0/AW4/242 7.5 RE/CRSU LAs HP30 - 4.88s, LockRite, CRSU steering 8.8 - 4.88s, LockRite, Discs 33x12.50s on TJ Canyons ARB/XD9000, OBA, frame braces, hood vents, minor HP tuning.

07-17-2003, 11:27 PM	#5
redwolf Registered Join Date: Mar 2001 Location: Raleigh, NC, USA Posts: 63 Thanks: 0 Thanked 0 Times in 0 Posts	The guys at MAD XJ have a good writeup on mounting a battery where the stock airbox used to be. Relocating the Battery __________________ my xj 1999 XJ Sport UpCountry 4.0L 5spd w/stuff

07-18-2003, 12:31 AM	#6
99XTRMEXJ Registered Join Date: Jun 2002 Location: Dublin, Ohio Posts: 700 Thanks: 0 Thanked 0 Times in 0 Posts	MAKE SURE YOU WIRE IT SO IT'S 12V NOT 24V!!!!! You'll fry everything in the Jeep if you do! __________________ Matt Keck Black 99'Cherokee Sport 4.5" Lift 33x12.50 Kumho MT's 15x8 AR-767s, 3.75"bs See My Pics Trailquest TRAILQUEST FOURWHEELERS...lock n'roll

07-17-2003, 11:14 PM	#4
Scriff Registered Join Date: Aug 2002 Location: VA Beach Posts: 185 Thanks: 0 Thanked 0 Times in 0 Posts	http://www.imajeep.com/dual_bat/dualbat.htm just use one extra battery instead of three

07-18-2003, 01:24 AM	#7
storydude Banned Join Date: Nov 2001 Location: Nowhere Posts: 5,732 Thanks: 0 Thanked 0 Times in 0 Posts	If you are looking for more Amperage, Wire it pos to pos, Neg. to Neg. You DO NOT want the Batteries wired in Series. Red to red, Black to Black. Aaron

07-25-2003, 02:27 AM	#9
Steve F Registered Join Date: Feb 2003 Location: Sydney, Australia Posts: 162 Thanks: 0 Thanked 0 Times in 0 Posts	Checkout XJ dual battery It's an Australian site and dual batterys are common here more for touring setups than anything else. My XJ will be getting this along with a 50lt Fridge in the rear Remember when it says drivers side it's passenger for you guys. Cheers Steve

07-25-2003, 03:25 AM	#10
Pred8tr Registered Join Date: Apr 2001 Location: Richmond, VA USA Posts: 261 Thanks: 1 Thanked 0 Times in 0 Posts	I've seen lots of people talking about the space requirements of dual battery setups in XJs but I've yet to see anyone use a Dynabatt in an XJ. I've seen it in a CJ. You could easily fit two of these in the space of 1 standard battery and tehy are about the same money as a Yellowtop. http://www.performancedistributors.com/batteries.htm __________________ 95 XJ Country. R.I.P 97 TJ 2.5L Completely Stock

07-26-2003, 03:51 AM	#11
Pred8tr Registered Join Date: Apr 2001 Location: Richmond, VA USA Posts: 261 Thanks: 1 Thanked 0 Times in 0 Posts	btt __________________ 95 XJ Country. R.I.P 97 TJ 2.5L Completely Stock

07-27-2003, 03:36 AM	#13
Pred8tr Registered Join Date: Apr 2001 Location: Richmond, VA USA Posts: 261 Thanks: 1 Thanked 0 Times in 0 Posts	Boy! This thread sure is gettin' lots of attention. __________________ 95 XJ Country. R.I.P 97 TJ 2.5L Completely Stock

07-27-2003, 05:11 PM	#14
1BeatnZJ Registered Join Date: Sep 2001 Location: Long Island NY Posts: 1,527 Thanks: 0 Thanked 0 Times in 0 Posts	bump! __________________ '98 5.9 Limited! Plat. A good amount O work... 1/4mile 14.28. One fluke run @ 13.5 Fiance'--- '01 WJ Limited Black loaded 4.7 V8 with K&N drop in. 1/4 time 15.4 stock! (AIM: Xcheck71) Some of my videos! Many pics of my rig including tons of other rigs with wheeling and mods :-) A few more pics!

07-27-2003, 06:45 PM	#15
Bender Registered Join Date: Nov 2000 Location: Waterloo,Ontario,Canada Posts: 995 Thanks: 0 Thanked 0 Times in 0 Posts	Here's a homebrew setup using parts from a local electronics shop and welding supply stores. http://community.webshots.com/album/67867694oRFTUv Just a note.... in my schematic (yeah, yeah I know I should make up a "real" one some day) I show a diode being used between the red top and alternator as well as between the blue top and alternator. This was to isolate the batteries from one another preventing one from discharging into the other. Oh, also I made the starter look like a battery... not sure why but I did. The thing labelled "starter" is the...... well.. the starter and not a battery. For some reason when I tried this method the alternator wasn't functioning properly so I had to remove the diode to the blue top (accessory battery). Now if by chance my redtop dies the blue top will discharge back into the red. Until I find a solution to the diode problem I can live this this as the red top is ONLY used during starting so it sees very little use so I'm not to worried about it crapping out any time soon. __________________ Stroked 88 XJ slammed with 35's

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