[Elecraft] Reversed polarity from car-battery

[Dave G4AON]

While your circumstances may have been different, for some time I have
been using these non reversible battery clamps with pre-connected leads.
These connectors will not fit the wrong way around on a leisure battery
as the -ve and +ve posts are different sizes. See part number WD15R at
www.maplin.co.uk for the type I use. These are also widely available
from camping and leisure type stockists.

73 Dave, G4AON