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If the main battery is removed, the backup battery ensures the data on SDRAM
is safe for up to 2 hours. To prevent data loss, do not leave the PA690
uncharged with the main battery removed for an extended period. See the
Charging the Battery
unit on for more details.
Note:
To guarantee optimal performance, it is advised that rechargeable
batteries be replaced every year, or when 500 charge/discharge cycles
are achieved. It is normal that the battery balloons or expands beyond
one year or the maximum of 500 cycles. Although it does not cause
harm, it cannot be used again and must be disposed of according to the
location's safe battery disposal procedures.
If the performance decrease is greater than 20% in a Lithium-Ion battery,
the battery is at the end of its life cycle. Do not continue to use, and
ensure the battery is disposed of properly.
The length of time that a battery lasts depends on the battery type and how the
device is used. Conserve the battery life by doing the following:
z
Avoid frequent full discharges because this places additional strain on the
battery. Several partial discharges with frequent recharges are better than
a full discharge. Recharging a partially charged lithium-Ion battery does
not cause harm because there is no memory.
z
Keep the lithium-Ion battery cool. Avoid a hot car. For prolonged storage,
keep the battery at a 40% charge level.
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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 half of the one with frequent recharges.
Battery charge notice
It is important to consider the environment temperature when the Lithium-Ion
battery pack is charged. Charging is most efficient at normal room temperature
or in a slightly cooler environment. It is essential that batteries are charged
within the stated range of 0°C to 40°C. Charging batteries outside of the
specified range could damage the batteries and shorten their charging life
cycle.
CAUTION!
Do not charge batteries at a temperature lower than 0°C. This will
increase the internal resistance to cause heat and make the
batteries unstable and unsafe. Please use a battery temperature
detecting device for a charger to ensure a safe charging
temperature range.
