Originally Posted by Jungerishere

Much better than lead acid. There is no cold cranking hesitation in extreme cold weather, even sitting for days out in the extreme cold. One time, I even left the parking lights on overnight and thinking the car will not start and need a jump next afternoon but that wasn't the case. The car started right up without hesitation. I switched to AGM on all my cars. I will not buy lead acid again. AGM seems so much better.