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Thread: 140 Amp Hour Single battery

  1. 13th August 2011, 05:20 PM #1
    Cosmic Tourist's Avatar
    Cosmic Tourist
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    140 Amp Hour Single battery

    Hi,
    sorry for taking forever to get some photos up, I've was recently killed in a terrible accident, but Im better now.
    The photos show the battery in place in the Disco. Essentially I replaced the original battery with an AGM battery, specs 140ah at 20 hours, CCA 1350.
    I got it here,
    12v 140AH DEEP CYCLE/MARINE/4WD AGM BATTERY 2yr warr. | eBay
    although it was a lot cheaper at the time (aussie dollar, anyone?)
    I did this because my battery was dying and needed to be replaced and I couldnt decide a proper 2 battery setup so I thought this would be an easy and convenient solution.
    Be aware that I still dont know how I got the battery to fit. Its dimensions are about the same as the standard type 31 footprint 338x173x235 but its a LOT taller, 350x170x275. It seems a lot taller. This meant I had to make space at the bottom of the battery compartment and it still just allows the bonnet to close.
    I removed the battery compartment and cut out the bottom of the yray to get the space. I lined the bottom and surrounds with VERY thin rubber to provide a bit of protection, then wrapped the surrounds in foam and a coat of tarp for abrasion. Longer tie downs secure it nicely.
    Bear in mind Im not an especially talented mechanic, and Im sure it could look a lot nicer but its safe and works which is enough for a start. Id be very happy for suggestions to improve, but the principle is there. Im pretty sure Odyssey 2150 are not so tall but they're double the price. If what I've got works well it might be worth swapping out the current battery and replacing with an odyssey, using the current for a second battery (where?) so I can run a small house off them both. Possibly a solar panel on the front section of the roof, running wires down the snorkel, to get a nice long charge.
    I must say it was nice being able to start in the snow without jumping.
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  2. 14th August 2011, 06:27 AM #2
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    Thats BIG
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  3. 14th August 2011, 06:39 AM #3
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    good work but you're going to need to do something about the charging rate from the alternator.

    http://www.jaycar.com.au/images_uploaded/slabatts.pdf

    covers the basics of SLA battery tech and the considerations for charging them.
    Dave

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  4. 14th August 2011, 08:51 AM #4
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    Hi Cosmic, I’m agree with Dave.

    I’ve looked up the specs for the battery.

    As long as you either only use the battery as a cranking battery and can then use your alternator to recharge it or if you use it for powering accessories while say camping, you then need to reduce the charging current/voltage.

    For Land Rover Specific Dual Battery Systems and Headlight Wiring Upgrade Kits,
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  5. 14th August 2011, 02:32 PM #5
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    Quote Originally Posted by Pedro_The_Swift View Post
    Thats BIG
    Thats what the girls tell me.


    Thx for the advice.
    A Ctek D250s dual seems like it would overcome these problems, as well as allow me to plug in a solar panel, as well as start any two battery setup. When I get the solar panel, is there any advantage to the smartpass?
    Both will fit neatly into the space left by the jack, and then I can clean up the install a bit, make it neater

    James
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  6. 14th August 2011, 03:33 PM #6
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    without wanting to open up a huge can of worms...

    The wiring to get the ability to use the full potential of your SLA 140AH is going to be a nightmare.

    what you need is a normal battery that can cop the abuse of an alternator and provide starting amps and then to wire in a charge shaper to charge that monster SLA.

    Id rate drivesafe gear over Ctek for in car battery management and ID be asking him about which of his products will get you the best life out of that battery.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
    If you think you're in front on the deal, pay it forwards.
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