3.9.1 Recharging the built-in battery
At the point of purchase, the built-in battery is not fully charged. Also, the built-in battery
switch is set to OFF. Before using the SJ-410, set the built-in battery switch to ON, and
charge the built-in battery.
• The built-in battery cannot be recharged if the battery switch is set to OFF. Make sure to
set the built-in battery switch to ON.