Do batteries last longer in hot climates than in cold ones?
NO… batteries used in colder or moderate conditions can last between 2 to 3 times longer than batteries used in hot climates or high heat conditions.
In the northern U.S. states, in Canada or in Northern Europe, the life expectancy of an automotive battery average between 48 and 54 months. In more Southern Climates like the state of Florida in the USA, the average life expectancy of standard automotive batteries is about 18 to 23 months. This data is based on typical usage and very good charge and discharge conditions.
Heat kills batteries!
For every 10° increase in temperature above 77°F /25°C, the chemical reaction inside your battery will approximately double, cutting battery life in half. **