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On Friday, 12 July 2019 10:10:56 UTC+1, Harry Bloomfield wrote:
Jim GM4DHJ ... used his keyboard to write :
anybody got one of these ?

No, but the spec. sounds good. I cannot see a clip on current probe, so
no idea how they assess that.

Measure oc battery voltage

That device can't do that.

Measure battery resistance
Measure cranking voltage
Calculate cranking current