Originally Posted by andrewwynn

A 2000w motor could easily pull 4000-5000 w briefly at the initial start. When a motor isn't spinning it "looks like" a wire to a battery (basically a short). Once spinning the motor acts as a generator and pushes voltage backwards. Failures in the motor could cause a drop in the motor to generate that voltage which would cause it to pull more current.

Bad connection more likely to cause voltage drop and less current. You need to determine baseline: what is the normal current draw.

Are you seeing a spike of 400 then drops to 200 while cranking or does it stay at close to 400 the entire crank?


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