User's Manual

77
Section 7. Managing Batteries and Power
79-0003-003 22 October 1999
Tip 5. How your battery behaves in warm and cold
conditions
In warm conditions
• When using a battery in warm conditions, the battery capacity will
drain faster. In general, as the temperature rises, it is possible for the
battery to drain 20 percent faster at 40°C (104°F) and 50 percent
faster at 45°C (113°F).
• To prevent possible damage to the battery, the system will not allow
a charge if the battery temperature is above 45°C (113°F), such as
in a closed, unattended vehicle during the summer.
• If possible, charge the battery in a location with a moderate
temperature of around 20°C (68°F). The battery wont last as long
during the day if charged at higher temperatures because heat slows
down the batterys chemical reactions. Also, if the battery becomes
too hot while charging, the charge mode automatically switches from
Fast Charge to Slow Charge. Slow Charge takes much longer to finish
charging the battery.
• When charging the battery, leave the display tilted open and allow
unrestricted airflow so excess heat can escape from the battery
compartment and prevent the battery from overheating.
In cold conditions
• When using a battery in cold conditions, the battery capacity can
drain 30 percent faster at 4°C (39°F) and 70 percent faster at -11°C
(19°F).
• To prevent possible damage to the battery, the system will not allow
a charge if the battery temperature is below 5°C (41°F), such as in a
closed, unattended vehicle during the winter.
• If possible, charge the battery in a location with a moderate
temperature of around 20°C (68°F). The battery wont last as long
during the day if charged at lower temperatures because cold slows
down the batterys chemical reactions.