Charging temperatures
Notice Do not expose a battery to very high or very low
temperatures for extended periods of time. Doing so will shorten the
usable life ('service life') of the battery.
To achieve the best results when charging your battery:
■
Before you begin to charge your battery, make sure
that the battery temperature is close to the room
temperature in which the battery is to be charged.
■
If possible, charge the battery in temperatures
between 50 °F and 77 °F (between 10 °C and 25 °C).
This temperature range is the optimal charging
range.
Charging only starts when the battery is between 32 °F to 104 °F
(0 °C to 40 °C).
When the battery temperature is outside the normal charging range,
the orange LED on the charger is lit. Charging will start or resume
once the temperature is within normal limits, and no action is required
by you.
Leaving the battery on charge
You can leave a battery/radio in the charger once charging is
complete. Leaving a battery in the charger will not overcharge or
damage it.
You can remove a battery/radio from the charger at any time without
harming the battery, the radio, or the charger. When you return the
battery/radio to the charger, charging is automatically resumed.
Vehicle chargers only
It is safe to switch off the ignition while there is still a battery in the
charger. But if the vehicle will not be used again for some time, check
whether charging will continue while the ignition is off, and consider
what effect this might have on the vehicle battery.
To check, place the battery in the charger and switch off the vehicle
ignition:
Battery Charging Guide 7
77 °F
25 °C
50 °F
10 °C