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Page 42 of 41
7.6
MAIN BATTERY STORAGE & SAFETY PRECAUTIONS
Charging Considerations
It is important to consider the surrounding temperature whenever you are charging the Li-ion battery pack.
The process is most efficient at normal room temperature or slightly cooler. It is essential that you charge
batteries within the stated range of 32°F to 113°F (0°C to 45°C). Charging batteries outside of the specified
range could damage the batteries and shorten their life cycle.
Effects Of Overcharging Batteries
Overcharging may occur when a Li-ion rechargeable battery is charged at a regular or quick charging rate
after it has been fully charged, but there is no risk of overcharging while charged in trickle charging rate.
the WDT2200
If Li-ion batteries of
are charged by a power adapter plugged directly to its DC jack for too
long, they can sustain a temporary reduction of capacity due to overcharging. A battery left to charge for
several weeks may appear to have minimal capacity. This type of failure can be remedied by temporarily
depleting the battery of its power and recharging it to rejuvenate it. This condition can be prevented by
avoiding overcharging for long periods of time or always using the cradle to charge the batteries of the PDT.
The cradle starts the charging process in quick charging rate and switches to trickle charging rate when it
detects the battery is fully charged.
Storage and Safety Precautions
Batteries should be stored in an open circuit condition and placed where there is no risk of accidental
shorting or other damage. Although charged Li-ion batteries may be left unused for several months, their
capacity may be reduced due to internal resistance. If this happens, they will require recharging prior to use.
Li-ion batteries may be stored at temperatures between -4°F and 158°F (-20°C to 70°C), however they may
be depleted more rapidly at the high end of this range.
© 2003 Wasp Technologies, Inc.
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