Northern Alberta. Currently -30c. The 8yo battery in my car started my engine just fine this morning, with the help of my block and battery heaters that ran a

Northern Alberta. Currently -30c. The 8yo battery in my car started my engine just fine this morning, with the help of my block and battery heaters that ran all night. I think people in the north might have longer battery life because of the harsh conditions. We probably spend more time/money on maintenance of vehicles precisely because we need them to start when very cold. I have noticed a deeper voltage drop when starting my car this winter. The battery might well be on its last legs but so long as it is still working I'll hold off replacing it. (I do carry a jumpstart kit in my trunk, right beside the snow chains.)