I am driving a Satrun for a winter vehical and because of the mileage that it gets. here is the problem. I was driving into town from my aunts house out in the country and am taking side streets. I get to a hill where the speed limit lowers from 40 to 25 so I let off the gas going down hill and the car just dies, no studdering but like the key shut off. I pop the clutch and it restarts. I get to the next intersection where I have to turn and it dies again. I stop the car at my house and the thing keeps running. Shut it off and it restarts. I took it for a ride later and it died again while coasting down. I had an electrical test run at a local Checker and they said it was the battery, but it is about 10 months old. I put the charger on it also, but it was nearly full. I am not sure how old the alternator is, but that is where I am leaning even though the diagnostic said it was good. Any other thoughts?