User`s manual

BATTERIES AND MAINTENANCE
21
2
In order to maximize operating autonomy, the Elf checks its
battery level at all times. If the battery is not sufficiently charged,
the Elf will not turn on when the ON/OFF Power button is
pressed.
In this case, either substitute a sufficiently charged battery, insert
the Elf into a powered cradle, or plug it into a wall charger.
NOTE
To maximize battery life, turn off radios when they are not
needed.
NOTE