User's Guide

RA-7120
User Manual
viii
The length of time that a battery power lasts
depends on the battery type and how the device
is used. Conserve the battery life through the
following:
 Avoid frequent full discharges because this
places additional strain on the battery.
Several partial discharges with frequent
recharges are better than a deep one.
Recharging a partially charged lithium-Ion
battery does not cause harm because there is
no memory.
 Keep the lithium-Ion battery cool. Avoid a
hot car. For prolonged storage, keep the
battery at a 40% charge level.
 Do not leave the lithium-Ion battery
discharged and unused for an extended
period because the battery will wear out and
the longevity of the battery will be at least
shorter than half of the one with frequent
recharges.
Battery Charge Notice
It is important to consider the environment
temperature when charging the Lithium-Ion
Battery Pack. Charging is most efficient at room
temperature or in a slightly cooler environment.
It is essential that batteries are charged within
the temperature ranges of 32º F - 104ºF (0°C -
40°C). Charging batteries outside of the
specified temperature range could damage the
batteries and shorten their charging life cycle.