Ford recently said 'Batteries are similar to people, as they both achieve maximum performance working under moderate, unchanged temperatures.'
Ford also stated that there are few areas in North America where moderate, unchanged temperatures are common place. That's why the Ford Focus Electric will come with the active liquid cooling system. The cooling system will cool the electric car's battery pack lessening the impact of cold weather as compared to air systems.
Ford holds that there are a number of advantages to the system on their Focus Electric: Apparently the Ford Focus Electric will be able to charge faster with the regenerative braking because of the liquid heated battery, creating less wasted energy and more captured energy from the braking system. The Ford Focus Electric will essentially get a longer range because of the quick-charge ability.
At least Ford had the insight to allow the pack to pre-warm when the Focus Electric is pluffed in and charging.
Focus Electric wasn’t built just for consumers in warm cities with consistent temperatures. We want our customers to know they can count on their electric vehicle whether they live in a cold or warm climate.