In a message dated 26/09/02 04:01:36 GMT Daylight Time, [EMAIL PROTECTED] 
writes:

> I could understand the diagnosis of thermal runaway for my original 
question,
> but I didn't think of it on this one.  The batteries have never felt more 
than
> slightly warm to my touch, unlike the Delphis, which got quite hot.
> The charger doesn't have to be switched off very long to go ahead and 
complete
> the charging cycle. Why does the charger work as designed if I re-set it?

If the gassing voltage is too high for the temperature of your batteries, 
more energy will go into gassing rather than charging, raising the 
temperature of the battery further. In it's mild form this means that the 
current will never taper far enough for the charger to go into the next 
phase. Eventually the charger may time out. Hopefully this time limit will be 
short enough to avoid damaging your batteries. On my installation it is not. 
If the charger times out soon enough, then by the time you come to look at 
the car, the batteries have already cooled down and you can reset the 
charger.


Paul Compton
BVS technical officer www.bvs.org.uk
www.sciroccoev.co.uk

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