Dual Battery in 2004 Prado GXL

Submitted: Saturday, Jul 10, 2004 at 11:50
ThreadID: 14536 Views:2156 Replies:5 FollowUps:2
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Hi Guys,

Have a 2004 Prado GXL and wish to fit a dual battery system. I have searched the archives but could find any references to this years model. It seems there in not enough space in the engine bay to put in a second battery. One dealer says it must go in the boot area. I'm not impressed with this idea as it takes up valuable space. Anyone got any suggestions?
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Reply By: Joe - Saturday, Jul 10, 2004 at 12:00

Saturday, Jul 10, 2004 at 12:00
Hi Bob,
ARB at Geelong fitted my 120 V6 up with a Piranha unit in Jan this year. Lots of chaps have also now done the installation. Your dealer has low level of knowledge, might be worth speaking to others as it's just not a big deal, and you certainly would hate to locate it in the boot.
AnswerID: 67214

Follow Up By: North Coast Bob - Saturday, Jul 10, 2004 at 16:00

Saturday, Jul 10, 2004 at 16:00
Thanks Joe for your reply. I will certainly try elsewhere. Can you tell me where they located the second battery as there does not seem enough room in this years model.
FollowupID: 327969

Follow Up By: Joe - Saturday, Jul 10, 2004 at 21:24

Saturday, Jul 10, 2004 at 21:24
Hi Bob,
The 2nd battery is located just behind the drivers side headlight. From memory a minor relocation of some items.

Good luck.
FollowupID: 327982

Reply By: KIM - Saturday, Jul 10, 2004 at 17:02

Saturday, Jul 10, 2004 at 17:02
Hi Bob,
TJM in Dandenong did mine. The second battery is directly opposite the vehicle battery on the drivers side. I have a Glind shower and have been told there will be no problem fitting this in as well.
AnswerID: 67236

Reply By: Member - Bear - Saturday, Jul 10, 2004 at 18:47

Saturday, Jul 10, 2004 at 18:47
My mate just had his new Prado done at Opp Lock Brookvale and is currently away for 4 week trip. He loves the job and can't stop ringing and saying that he don't know why he waited so long to get one.
AnswerID: 67246

Reply By: steve - Saturday, Jul 10, 2004 at 20:42

Saturday, Jul 10, 2004 at 20:42
Fitted one to ours a few months ago. Used a TJM tray and Piranah management system. Works great and fits very neatly. Rewired the original power sockets with 6mm twin core wire to this aux battery so they are powered all the time. Used to be a real pain in the bum having to leave the key in the acc position to run the fridge.

AnswerID: 67254

Reply By: DrewT - Wednesday, Jul 14, 2004 at 16:02

Wednesday, Jul 14, 2004 at 16:02
Hi. I recently installed a aux bty on a Prado120 (V6). Used a Pirahna tray simply because i was told it was a bit fiddly relocating the power steering reservoir away from behind the RHS headlight & the Pirahna tray comes with the brackets for the reservoir relocation. Instructions/diagrams with the Pirahna kit are pretty crappy & like most things you could make up a tray yourself once you see what they have used as the mounting points etc (i still have the Pirahna instructions if you want a copy).

Also used:
- Redarc isolator
- 8mm2 cabling throughout (to isolator & to aux loads)
- full size Exide Extreme cranking bty
- Jaycar voltage indication battery terminal (only $30)

Only thing i'd like to add in due course is a low voltage aux load cutout (per Jaycar 'low voltage alarm', but replacing the actual alarm with a relay)
AnswerID: 67755

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