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  • Batteries in vehicle cabin

    I am in the process of connecting up a solar panel system and 3rd battery for camping and trekking. I currently have 2 flooded wet cells under the bonnet with a voltage sensitive isolator. I want to get a 3rd battery to really get some running time away from home for the fridge, lights and what have you. I want to keep to the same type of bettery if possible to parallel (noting the several different forums stating whether this is necessity or not ,but we wont get into that here will we!). I have been doing a lot of reading and found that there is a sealed version of the wet cell, the sealed lead acid battery (SLA). I can't find much literature about whether or not these can be stored in the vehicle cabin or not being sealed? Does anyone have any experience? In particular the Amp-Tech 105ah. If not, I guess I will have to find one of these amazing AGM's.
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  • #2
    Regardless of the type of battery you decide on you should povide at least 10G of restraint for the battery. Depending on the battery weight this will be 300+Kg restraint.
    Leachy
    EX-Prado Owner

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    • #3
      Guys just remember that the term sealed lead acid is not quite correct . The proper term is valve regulated lead acid or VRLA . This means that the battery can vent to atmosphere if necessary , that's why it's stated on them that they not be installed in a sealed container . Under normal conditions there is very little venting but remember that it can and does happen .

      Cheers
      Ross

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      • #4
        It's not worth it. Venting but also if there is an accident and the battery case ruptures...
        Winston.

        White 2009 120 Series D4D GXL manual.

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        • #5
          I would think that you would have to use either a battery case that is sealed and vented externally via a vent hose or get a battery that is designed to be mounted inside that has vent tube on it. I've seen them on cars that have the battery mounted in the boot ala Mazda MX-5 etc. You don't want those sort of fumes venting in the cabin of your car.
          2011 White GXL Diesel, ARB Sahara bar, Lightforce Genesis, ARB under bonnet compressor, Dual Batteries, GME TX3540

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          • #6
            I'd go with a battery box too, it is rare but batteries have been know to burst form overcharging etc,
            Would you really want acid spraying all over the inside of your car?

            Cheers
            LeighW
            HKB Electronics, manufacturer of the Alternator Voltage Booster, Silver 2008 D4D,Lifted,Underbody protection, Alternator Voltage Booster, Tiger Z winch, Lightforce DL, Air Horns, Tanami Drawers, Drop down fridge slide, Outback cargo barriers, Rotronics dual Battery system, Polaris GPS, HF/UHF/VHF, Radio speaker combiner, Long ranger water tank, Diff breathers, Inverter, Snorkel and others

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            • #7
              ADRs state the battery must be vented outside the cabin and restrained but, realistically, what and how many accessories do you need to run that warrant a third battery in the car? If you're going to carry all the comfy electronic mod cons for the missus and kids then get a camper trailer or caravan.
              Dave
              Views expressed are mine alone and are not intended to compromise the integrity of my employer nor offend those who may read such views.
              Bugger Bali, get out and see Australia before we sell it all to China.

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              • #8
                If you already have 2 batteries and you are getting solar panels, I would have thought this would keep you in power almost indefinately assuming you have reasonable sized solar panels and your not taking the Plasma big screen camping.

                I have an AGM in the rear of my Prado, I wouldn't put a wet cell in there personally.

                Cheers Andrew
                [COLOR="#FF0000"]So Long and Thanks for all the Fish![/COLOR]

                [url=http://www.4wdadventurers.com/showthread.php?3840-AJ-s-120-Prado]MY PRADO AND DIY CAMPER TRAILER[/url]

                [url=http://www.4wdadventurers.com/showthread.php?3975-AJ-s-79-series-Cruiser-Ute]MY HZJ79 Landcrusier[/url]


                [SIGPIC][/SIGPIC]

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                • #9
                  I have used VRLA batteries inside a vehicle in the past, without issues. These batteries do not tolerate heat and are unsuitable for under bonnet use. Keep them away from heat, keep them charged but do not over charge them, have them well restrained, do not keep them in a sealed, unvented container and vent them outside the cabin. BMW has been mounting batteries in the boot in this manner for many years now.

                  An AGM battery is a type of VRLA Battery, the other type of VRLA battery is the Gel Cell:
                  http://en.wikipedia.org/wiki/VRLA_battery

                  VRLA Guidelines:
                  http://www.intelepower.com.au/index....=91&Itemid=109

                  VRLA Safety, Storage, Operating and Maintenance Manual:
                  http://www.enersysreservepower.com/d...M-002_0308.pdf
                  "Sure it’s quiet, for a diesel, but that’s like being well-behaved… for a murderer."- Jeremy Clarkson

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                  • #10
                    Thanks for the reply's. I checked out some Mazda forums, some of them just run VRLA wet cells, AGM's or gels in the cabin without tubes outside some times. Obviously there is risk doing it.

                    I might fashion up some airtight reiforced container with a breather tube and run it outside the cabin.

                    Why do I need another battery? I'm running the old mustard engel fridge that was a bit of a hand me down and she chews a bit of power. I was camping for 2 nights recently and it chewed a 90ah battery till it cut out. Battery is fine, recharged completely off 240v and holds charge like new. This was with about an hour or two of driving aswell. So I would like to be able to run the fridge and some lighting for up to 5 nights on our fraser trip in a couple of weeks, I rekon another battery and some solar panels should see me through.

                    Yes I know some would suggest hey just go buy a $15,000 camper or a new fridge but I'm only young and renovating a house so I don't have bucket loads of cash to whip around on fancy dooda's.

                    I will keep you posted on how it all goes.
                    [url]www.intrepidtrippers.wordpress.com[/url]

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                    • #11
                      We have had our second battery in the rear compartment for 12 years without a problem. I have used sealed and normal lead acid batteries as well as AGMs. It is contained in a wooden box as part of the rear drawer system I built. There is amble ventilation to remove any fumes while driving. Lots of cars have or had batteries in the cabin or boot without outside venting. My old Mini for one.
                      Michael and Kelly

                      [SIZE=1]1999 Prado Snowy 3.4L petrol, Ultimate Suspension 50mm lift (2013)[/SIZE][SIZE=1], BFG A/T, bull bar, winch, Twine hot water shower, home made rear drawers, Shippshape car top tent, UHF radio, tablet GPS & Navman GPS (both running OziExplorer)[/SIZE][SIZE=1], Spot 1, solar panel, second battery, inverter, Engel fridge and more[/SIZE]

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                      • #12
                        We are not talking about 1960's roller-skates. We are talking about vehicles (Prados) licenced to comply with current ADRs and DoTaRS standards. Recently helped my brother register a 1975 XB Falcon coupe with a 460 up front and a battery in the boot. It wasn't passed until the battery was located in a sealed marine style battery box vented to the outside. My own Cobra was passed with the battery in the boot only because the car doesn't have a roof. If I had put on a hard or soft top then the motor registry would have demanded the battery be vented to the outside.
                        Dave
                        Views expressed are mine alone and are not intended to compromise the integrity of my employer nor offend those who may read such views.
                        Bugger Bali, get out and see Australia before we sell it all to China.

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                        • #13
                          When I camp out without the trailer I turn the thermostat down on the fridge at night time. Frozen goods stay frozen, even overnight in the hot WA outback. Beer stays nice and cold in the Engel between 1.5 - 2 on the dial. Frozen stuff stays frozen at 3 (providing it was frozen before putting into the Engel). If the battery monitor drops then a couple of times during the day I will run the engine for about 10 - 15 minutes to top up the battery.
                          Dave
                          Views expressed are mine alone and are not intended to compromise the integrity of my employer nor offend those who may read such views.
                          Bugger Bali, get out and see Australia before we sell it all to China.

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                          • #14
                            Bushbasher - can you tell me where you got the sealed battery box, I cannot find any in Australia anywhere?
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                            • #15
                              Hi Fellas. Any good reason why you can't fit up a truck chassis mounted battery cradle on the inside of the left hand chassis rail where the 2nd fuel tank goes on some models? Easy to fit and plenty of clearance. Just a thought...........
                              2005 100 Series Landcruiser. 4.2 T/D 5 speed auto. LTD c/w AHC/Leather etc.

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