It was -18 in the city and it was time to try. As a result - 10.1 volts 2.0 gasoline - did not start. A couple of sluggish scrolls and that's it. Diesel 2.5, 10.7 volt battery - did not start, immediately went into error. I think that really 100-120 amperes, that is, 1.2-1.4 gasoline, with a barely run-down battery will save, the only question is from what .
I included some photos to give a more complete picture of the experience.
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