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D40 STX 550 dual battery setup
  #1  
Old 23-04-2013, 09:22 AM
qecluke qecluke is offline
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Default D40 STX 550 dual battery setup

Hi guys, I'm looking a putting a dual battery set up in my navara 550. Im really not keen on putting the second battery in the tray, everyone I have spoken to said I cannot fit it in the engine bay. So I'm left with this option:

http://www.piranhaoffroad.com.au/news/index/article/21

It mounts under the cab and fits an Optima 75Ah battery. I would love a bigger one but you can't have the best of both worlds.

I basically just want it to run my 80L Waeco fridge for a day or two. I'm not planning on weeks and weeks away in the truck just yet and just a few lights.

Anyone have any thoughts.

Thanks
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  #2  
Old 23-04-2013, 09:38 AM
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hmm looks good, i am also looking at other options as i don't like the tray idea either :)
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  #3  
Old 23-04-2013, 10:41 AM
qecluke qecluke is offline
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Yeh I am totally against it mannick! I am keeping my hard top so I'm after all the room I can get. I got these under body kits priced today they are $285.00
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  #4  
Old 23-04-2013, 11:26 AM
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A2_tha_MFK A2_tha_MFK is offline
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Hey guys, I have a 550 also, I've gone this option -
http://www.offroaddownunder.com.au/i...stx&Itemid=288
sits above the wheel arch which is wasted space anyway.
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  #5  
Old 23-04-2013, 12:03 PM
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Old.Tony Old.Tony is offline
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The 75Ah Optima battery is the D31A spiral-wound AGM which is a bloody AWESOME battery, nearly indestructible and from a full charge will give you about 60Ah of power.

Assume your lights are all LEDs and in total draw 1A which will be used for say 5 hours - for 2 days that's 10Ah leaving you with 50Ah of capacity.

I don't know what the Waeco 80L draws on average. My 60L Engel averages about 1.5A on a 50% cycle, so around 0.75Ah * 48 = 36Ah so my fridge would be fine.

Get your Waeco fridge hooked into an ammeter, load stuff into it and monitor the power consumption. That's the only way you'll get a clear idea of how long your battery will supply it with power.

Make sure the power leads from the battery to the fridge are nice and heavy - my Waeco upright in the caravan (5.5A draw) is very sensitive to low voltage.
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  #6  
Old 23-04-2013, 12:15 PM
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Quote:
Originally Posted by qecluke View Post
Hi guys, I'm looking a putting a dual battery set up in my navara 550. Im really not keen on putting the second battery in the tray, everyone I have spoken to said I cannot fit it in the engine bay. So I'm left with this option:

http://www.piranhaoffroad.com.au/news/index/article/21

It mounts under the cab and fits an Optima 75Ah battery. I would love a bigger one but you can't have the best of both worlds.

I basically just want it to run my 80L Waeco fridge for a day or two. I'm not planning on weeks and weeks away in the truck just yet and just a few lights.

Anyone have any thoughts.

Thanks
Hi mate, I run my 80l Waeco of a 75a/h optima. And in the middle of summer with the fridge in the canopy running at -15 it will last for two days and nights before it will cut out on the low voltage auto cutout on the fridge. I think it's the Hi setting you use to get the longest. The good thing is with these batteries is that they charge fast. Hope this helps.
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Last edited by Navmania; 23-04-2013 at 12:17 PM.
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  #7  
Old 23-04-2013, 12:33 PM
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Quote:
Originally Posted by A2_tha_MFK View Post
Hey guys, I have a 550 also, I've gone this option -
http://www.offroaddownunder.com.au/i...stx&Itemid=288
sits above the wheel arch which is wasted space anyway.
That looks like a decent setup to hmm
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  #8  
Old 23-04-2013, 12:34 PM
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mannnick mannnick is offline
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Quote:
Originally Posted by qecluke View Post
Yeh I am totally against it mannick! I am keeping my hard top so I'm after all the room I can get. I got these under body kits priced today they are $285.00
What is included for that price mate?
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  #9  
Old 23-04-2013, 01:09 PM
Busiboy Busiboy is offline
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Quote:
Originally Posted by mannnick View Post
That looks like a decent setup to hmm
I did something similar, works for me, you lose some space, but not really anything you would notice. It's a pain in the Arse spot in the tray anyway.
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  #10  
Old 24-04-2013, 01:29 PM
chookc chookc is offline
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What about water and water crossings etc with the battery mounted on the chasis rail like that.. Could that be an issue or are they not suceptable ? to problems caused by water etc...
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