User's Manual

Chapter 5: Getting To Know The Warrington
Monitoring The Battery And Maximizing Run Time
70 Warrington Hand-Held Computer User Manual
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5.7 Monitoring The Battery And Maximizing Run Time
As Lithium Ion batteries age, their capacity decreases gradually, and they are generally con-
sidered depleted after approximately 2 years of use (less than 60% of original capacity
remaining). Keep in mind however that heavy usage or operating the unit at temperature ex-
tremes will shorten the battery life.
Lithium Ion batteries do not require conditioning cycles and the Warrington battery system
(including chargers) requires no user interaction to maintain peak performance.
To maximize the run time of your batteries, consider the following:
• The display backlight is the largest drain on the battery. Try to keep its brightness as low
as possible.
• The hand-held is ‘event’ driven—that is, when the unit is not in use, it reverts to sleep
mode (even when it appears to be running), saving battery power. Events include a key
press, touchscreen taps and scan triggers. Power consumption is reduced if you avoid
unnecessary events, and allow the unit to sleep as much as possible.
• The battery is a ‘smart battery’ with built-in intelligence.
Tapping on the Power icon in the Control Panel displays a dialog box that provides
detailed information about the battery status of the main battery installed in your unit.
• When the hand-held is switched off, it goes into a low-power, suspend state but contin-
ues to draw a small amount of power from the battery. This should not be an issue unless
the unit is left in suspend state for more than a week—for long-term storage, the battery
should be removed from the unit.
5.7.1 Storing Batteries
Long term battery storage is not recommended. If storage is necessary:
• Always try to use a ‘first-in first-out’ approach to minimize storage time.
Note: When the main battery is at 50% capacity, a ‘low battery’ warning is displayed.
When the battery is at approximately 10% capacity, a ‘very low main battery’ noti-
fication appears.
Preliminary Draft