Has two batteries, which are apparently running at 25-40% efficiency.
Personally I'd probably have replaced just one on the grounds that
1) I'm stingy
2) Does a car REALLY need 2 batteries - I know Toyota advertise putting 2 batteries in the Hilux so as to avoid being let down if one dies.
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Check first to see if this is a split battery system, some Japanese cars come with two 6 volt battery packs wired in series to give 12 volts.
If one is dying, the other probably is not too far off so don't be stingy, get it fixed properly.
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and this 25-40% efficiency is measured how exactly?
By whom? A battery sales outlet?
Is it a battery problem? Or a charging problem? Or is there not a problem?
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My old landcruiser had 2 12v batteries (12v system), when the vehicle became a little slower turning over i bought a new pair.
Out of curiosity i tried turning the engine over after i'd fitted one and the engine only turned over very slowly, so i should imagine the batteries are specced to be paired.
Just out of interest, my hilux (invincible) has only one battery, the HL2 being the usual spec for working vehicles seems to be the only one of the new shape to benefit from 2 batteries, the HL3 has single too.
I'm trying to find out if the twin batteries are of the same spec as the singles or slightly lower performance designed to run in pairs.
The specs are not stamped on the batts unfortunately.
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Mapmaker,
There is lots of discussion on this related topic on the trooper owners club site www.itocuk.co.uk/forums/index.php.
I have a similar issue to you so trawled the threads and the consensus is you need to change both because if one battery is good and the other is faulty in a very short time they both fail
Carse
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Thanks all. Not my motor. It was taken into a garage as it wouldn't start. They diagnosed a blocked fuel filter (well done the garage that normally services it!), and then said that it needs two new batteries. I am always suspicious of garages taking advantage of girls.
Lo and behold, the car won't start today, either. They think it might be "electrical".
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