User's Guide

146 Charging and caring for batteries
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.
77 °F
25 °C
50 °F
10 °C