Bootstrapping With Jumper Cables and Other Cold-Weather Battery Lore

Learn to use jumper cables to start a car in winter, as well as insulating the battery and keeping the engine warm.

Variation of Capacity With Temperature Chart
This chart compares the percentage of 80 degrees Fahrenheit capacity with the temperature outside in degrees Fahrenheit. As we can see the colder it is outside the lower the percnetage of capacity and vice versa.
ILLUSTRATION COURTESY OF EXIDE CANADA INC.