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Re: dual Battery

General Tech Talk

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Posts: 31
Joined: Mon Mar 20, 2006 9:56 pm
Location: Riverview Ipswich

Re: dual Battery

Post by Pajeropaul »

Hi guys i am fitting a dual battery sytem into a NF 89 pajero superwagon 3.0lt v6 with factory cruise control on board.... my question is this there is very little room under the bonnet to fit i have not seen a nf with this setup done yet so am asking for all help and picture that i can use for working this out would apreciate all help if any one can help thanks again ....

Paul...........
89 nf pajero, camping and comfort when away always looking for new things and advice, overhead console, 9550lb winch, hot water sytem 80litres on board water tank, in car sat fone,
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Location: Brisbane

Post by -Mick- »

buy an AGM battery and put it in the cab if no room in engine bay. Fullriver batteries are great and suite to running accessories and having no liquid and giving off no gas (negligible) they can be mounted inside in most any way.

http://www.fridge-and-solar.net/batteries.htm

then buy a redarc smart solenoid to handle the electric side of things. Surge protected, 100amps continuous, automatic voltage cutouts and redirection of charge mean that your aux battery only gets charge after your main one is topped up so you never get stranded.

http://www.fridge-and-solar.net/dual_bat.htm

about $100 off ebay for the redarc
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Post by of4x4 »

-Mick- wrote: then buy a redarc smart solenoid to handle the electric side of things.
I got one of these in my patrol. Sweet As. :D :D

Apart from the simplicity of it, you can also hook up an in cab override switch to bridge the solenoid in the event you need to jump start off the second battery. Also, you can hook up a monitor light so that you know when it's engaged and charging the second battery.

Only downsides... the terminals on the top have no cover or protection, so if you drop a spanner on them......spark city! And they only cut in at something like 13.6 or 13.8 volts (ie when your main battery is fully charged), so if your alternators a bit on the weak side, and you've got lights, heater, stereo, etc going, it won't kick in and charge your second battery - this was my experience anyway.

I can post some pics of my Redarc setup if you're interested - but it's a Patrol not a Pajero.
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Emo
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Post by Emo »

of4x4 wrote: Only downsides... the terminals on the top have no cover or protection, so if you drop a spanner on them......spark city!
Apparently you can now get little rubber booties for them.
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Post by RoldIT »

of4x4 wrote:
-Mick- wrote: then buy a redarc smart solenoid to handle the electric side of things.
I got one of these in my patrol. Sweet As. :D :D

Apart from the simplicity of it, you can also hook up an in cab override switch to bridge the solenoid in the event you need to jump start off the second battery. Also, you can hook up a monitor light so that you know when it's engaged and charging the second battery.

Only downsides... the terminals on the top have no cover or protection, so if you drop a spanner on them......spark city! And they only cut in at something like 13.6 or 13.8 volts (ie when your main battery is fully charged), so if your alternators a bit on the weak side, and you've got lights, heater, stereo, etc going, it won't kick in and charge your second battery - this was my experience anyway.

I can post some pics of my Redarc setup if you're interested - but it's a Patrol not a Pajero.
If your charge voltage does not get past 13.8 volt with a few things turned on, you've got bigger problems than lack of charge in you aux battery.
KRiS
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Location: Melbourne

Post by bazzle »

Some earlier charging systems are flat out at 13.8 volts. Later vehicles are higher.

Also Pianha used to have a battery mount for these.

Bazzle
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Post by -Mick- »

RoldIT wrote: If your charge voltage does not get past 13.8 volt with a few things turned on, you've got bigger problems than lack of charge in you aux battery.
don't poke fun at my electrical knowledge... it already has enough holes in it :lol:

Just suggesting a setup is all
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