Isuzu Trooper Owners Club UK™

Chris B · Posted: Sun Oct 23, 2005 23:57 Post subject: Twin Batteries - 2001 3.0DT SWB Van

Hi,

Quick question... are the twin batteries connected in series, parallel or through a split charge relay?

Cheers
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Isuzu Rodeo Denver Max LE | 265/65R18 BF Goodrich AT LTM No.60

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jon willy · Posted: Mon Oct 24, 2005 8:19 Post subject:

Hello Chris
The two 12v Batteries are connected in parallel so you end up still with 12v..

Jon.
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why is the bit of wine I like always at the bottom of the bottle

DAVE FROM NEWCASTLE · Posted: Mon Oct 24, 2005 12:10 Post subject: allways ask jon

allways in the lime light jon m8 lolol Laughing

keep up the good work m8 all advice is gladly accepted
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LOVE MY TROOPER 206,800 miles AND STILL LIKE NEW EVEN THOUGH I DO TAKE IT OFF ROADING PLAYING AND EXTREME.
due to me driveing it to bulgaria and back and still running like new. now liveing in bulgaria

jon willy · Posted: Mon Oct 24, 2005 14:19 Post subject:

Souness lives another day Dave ............. Canny derby that match ..... Boro blew it. this W/E though ..*beep*.

Jon.
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why is the bit of wine I like always at the bottom of the bottle

Twister · Posted: Sat Oct 29, 2005 20:06 Post subject:

Okay then, if they are in simple parallel, and are 85Ah batteries, how come they only fitted a 60A alternator ? Especially considering the excessive cold cranking that is necessary to start this motor. I seem to remember the Alt on my old 2.8TD having more output than that. Also, what exactly does the charge relay in the fuse box do ? is it a simple cut out relay ? I'm asking because one day I intend to fit a winch, and 4x100W Driving lamps, and I have often wondered whether it makes a difference which battery the feed cables are run to.
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"Tongue-tied and Twisted; just an Earth-bound misfit, I..." - PF

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davedgreat · Guest

Hi, I fitted a 9000lb winch to my bighorn, to the big Battery on the offside, put the winch solenoid box down the side of it.
Winch runs spot-on, I do have engine running at same time.
I used it last week in some"controlled tree felling". Worked a treat.

I think the charging relay senses the output from the alternator, then allows the charge voltage to all the axcillaries.

The battery on the nearside is for your towing electrics, caravan fridge etc.

Chris B · Posted: Sun Nov 06, 2005 21:14 Post subject:

I was thinking of fitting an external jump start socket (saves me opening the bonnet every time i give somebody a jump start...). Should i use the nearside or offside battery?

Cheers
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Isuzu Rodeo Denver Max LE | 265/65R18 BF Goodrich AT LTM No.60

Webby · ***** Joined: 08 Feb 2005 Posts: 536 Location: Suffolk

Chris,
Have you fitted a jump start socket to your trooper?
Need to get a new set of jump-leads and was thinking of going down that route. If so which battery did you use?
Cheers
Webby

Chris B · Posted: Tue Apr 18, 2006 17:20 Post subject:

HI Webby - I have yet to fit the external jump start socket... when i do im probably going to mount it on the rear then i can use it to power compressors and other gadgets.
Does anybody know which i should connect my leads to and also which battery should i use for my towing electrics?
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Isuzu Rodeo Denver Max LE | 265/65R18 BF Goodrich AT LTM No.60

jonkem · Posted: Tue Apr 18, 2006 20:14 Post subject:

Don't know if this will help but here goes:

I've recently pulled the complete loom from my 3.1 donor car to put in into the 2.8 and the 2 batteries are connected with no relays or anything in between them. This must mean that the charging relay etc only monitor the power needed to keep the batteries charged as a whole and not individually. Therefore it won't matter which battery you connect the load to.

Chris: What size cables are you thinking of running to the back for your outlet? I was going to put a winch on the back but the voltage drop worried me with the distance.
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1994 KZJ70 Cruiser (currently filling the garage and causing some head scratching)
1988 MKI 3.1td Hybrid Van (Ex Bobtail)
1991 SWB Fronty 2.8td Hybrid
2000 Astra Estate (work)
2006 VXR Astra
MK1 SR Nova

Chris B · Posted: Tue Apr 18, 2006 22:36 Post subject:

I have got some 16mm stuff used for wagon batteries - there wont be any voltage drop if you use something of that size.
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Isuzu Rodeo Denver Max LE | 265/65R18 BF Goodrich AT LTM No.60

jonkem · Posted: Wed Apr 19, 2006 8:43 Post subject:

Didn't see the question about the towing electrics.

The standard wiring is in the loom you just need to find it. It is a multiplug designated H44 & it looks to be tucked inside the back trim low down on the offside.
From memory there is a 30amp feed in the plug that I used to keep a fridge running but can't find it on the diagram.
_________________
1994 KZJ70 Cruiser (currently filling the garage and causing some head scratching)
1988 MKI 3.1td Hybrid Van (Ex Bobtail)
1991 SWB Fronty 2.8td Hybrid
2000 Astra Estate (work)
2006 VXR Astra
MK1 SR Nova

Chris B · Posted: Wed Apr 19, 2006 12:29 Post subject:

Cheers! I have done the towing electrics by removing the multi plug and soldering & heatshrinking the wires (i really hate scotchlocks!). I will send the rest to the front end when i wire my jump start point... if the batteries are wired in parallel it shouldnt matter which battery I use, especially as i always run the engine when starting somebody (dont want to get stuck myself!)
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Isuzu Rodeo Denver Max LE | 265/65R18 BF Goodrich AT LTM No.60