High George,
The reason is probably due to the recommended system on your car or truck
which will have a negative earth system.
If you make the positive connection last there is a danger of your spanner
making contact with some other part of the car and "Bloooie" you've done a
welding job! or melted your spanner.
This can't happen if you make the negative connection last.

Regards
 John Ensoll
[EMAIL PROTECTED]
LSF1383 level II
Builder,flier,flyfisherman in retirement
http://www.canterburysailplanes.co.nz
HOME OF THE AMERICA'S CUP

-----Original Message-----
From: George Voss [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 11 April 2000 12:34
To: RCSE
Subject: [RCSE] Why Negative Last


Why are we told to hook up the negative lead to a battery last, such as when
hooking up our battery charger to a 12V source?  gv

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