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I checked when I got home from work last night, with the radio, interior lights, and park lights on - 13.78 volts. Whilst the ambient temp was only 25 deg, the underbonnet temp would have been much higher - if the alternator does have temp compensation.
I'm not sure that temp compensation would work in a dynamic environment like a car engine bay. We certainly used it at work when we had battery backup systems - and we had to take it into account when taking SG readings.
Silly me took the Mitchell's Pass route not the highway so I was down at 1000-1200 rpm for a bit of the trip.
I'll monitor the voltage over the next week.
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Curses! Whilst investigating the problems, and connecting up the charger to the second battery in the spare wheel well, I noticed a wet area around the battery tray. Hmmm.
I've just pulled the AGM battery out of the wheel well. It's leaked.
I thought they didn't leak and could be used in any position. It's a good thing mine was upright.
I've spent the last hour or so stripping it all out, neutralising the acid. wire brushing, hosing, and cleaning.
The LPG tank is in the wheel well, too, so it might need to come out for a check.
I think the AGM battery will have to go into the faulty goods thread.
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Hi Ron - I'd be very interested to hear how you got your 2nd battery installed in the spare wheel well, and any gotcha's. It's exactly what I want to do with all that useless space under the floor. Well that, and maybe a spare air compressor...
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Paul, now that you have a 4.0, you won't have a subwoofer in the N/S/R 1/4.
Years ago, we fitted 2 batteries in there (stacked) for a LR car on the 1996 Calvert trip.
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The battery is cracked on the bottom of the case. It looks like it only lekas when it is taking a high current charge.
