On 8 Oct 2002 at 7:31, ebk wrote:
One person insisted that the earth cable connection
> should be connected as follows: The car that is charged have the
> cable connection on the earth battery Post. The other end should be
> connected to the engine or frame of the car that needs the power.
Well, assuming that both cars are negative earth...
The reason for connecting the earth cable to the chassis or engine of
one car is this. The battery to be charged might produce hydrogen,
and that hydrogen is most likely to collect as a gas pocket around
the battery. So when you disconnect the cables from around that
battery you want to make sure there is no spark that might set off an
explosion. Attaching the earth cable to the chassis or engine means
it is attached somewhere else further away from the battery. Once
you have disconnected that one, the other one is in no danger of
sparking (unless the two vehicles are touching).
--
Jim Muller
jimmuller@pop.rcn.com
'80 Spitfire, '70 GT6+
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