>>
>>
>>>This is so that on a negative earth car (most modern cars) if you charge
>>>from the car then dropping the lead onto the bare metal under the bonnet
>>>won't cause a short. Of course most chargers are short circuit protected
>>>but it may still be a good idea to follow this convention.
>>
>>
>> Hi
>>
>> Thanks for the info, but it has now thrown up a new problem.
>>
>> Do British cars follow the same convention as US cars or are UK cars >> positive earth?
>>
>> Bugger, where's my multimeter and where did I park the car? 8^) >>
>> Regards
>> KGB
>>
> AFAIK all cars are 12V negative ground worldwide, with a small population
> of top-end cars running 42V negative ground.
>
> At least today. Before WWII they were almost universally 6V with a good
> mix of positive ground vehicles running around.
>
> --
>
> Tim Wescott
> Wescott Design Services
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> Posting from Google? Seeformatting link
> "Applied Control Theory for Embedded Systems" came out in April.
> See details atformatting link