On 04/10/2015 9:10 AM, Lloyd E. Sponenburgh wrote:
Frnak fired this volley in
:

Or have I missed something?

You've missed that they usually recommend plugging the two vehicles
together for long enough to put a good surface charge on the weaker
battery, then to disconnect them during cranking.

Lloyd

And that the circuit is fused, anyway, at (probably) 20A...

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