Battery Management and Maintenance
You can maximize the battery life with a little bit of care. Since the batteries are chemical devices, it is important to keep the electron in it flowing occasionally. If the battery is stored in fully discharged state for a long period, it could fall into a deep discharge state. On the other hand, if the battery is stored in fully discharged state for a long period, the total battery capacity may be reduced. Please read the following tips to maximize the battery life.
1. PDA Settings
Turn off unnecessary functions - Functions such as Wi-Fi, Bluetooth, GPS, etc will drain more power from the battery. If you rarely use such functions, please turn off to save power. To turn off each function, assist the main manual.
Reduce brightness of the backlight - Brighter backlight will consume more power. Setting the backlight as low as possible is another way to save power. To adjust the backlight level, assist the main manual.
Enter suspend mode - Entering suspend (sleep) mode when you are not using PDA can increase the battery life. To enter suspend mode or to set auto-suspend mode, assist the main manual.
2. Charging Tips
The battery pack should be fully charged before you use the PDA for the first time. Within the acceptable temperature range, it will take approximately 4 hours to fully charge from deplete state using the supplied charging cradle.
Acceptable Charging Temperature Range
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Charging Temperature Range
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-20C (-4F) ~ 60C (140F)
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Use correct battery and charger for your device - Use of incorrect battery or charger may degrade battery performance and reduce the battery lifespan.
Assign one charging cradle to each device - Sharing a charging cradle among users is a common practice. However, sharing the charger may cause the user to pick up a battery that may have not been fully charged. We recommend assigning a cradle to each device to make sure the battery is fully charged. Green LED indicated the battery is fully charged.
Charge the battery when prompted - You will get an audible alert with a pop-up message when the battery is low. Failure to charge the battery may consume all RTC power and system time will reset to default. When main battery is detached, the RTC battery will keep the system time information for as long as 5 minutes.
Use 2 batteries supplied alternatively - You can increase the battery lifespan by using 2 batteries alternatively. If you are carrying a spare battery, we recommend charging the spare battery up to about 80% of its full capacity. More batteries may be used for more reliability.
Clean the battery contact surfaces regularly - Dirty contact points are a main source of charging problems. Regular cleaning is required for optimal performance. When cleaning it, please use a soft cloth. Cleaning with liquid material is not recommended. (Pure alcohol may be used.)
3. Charge Cycles
Rechargeable batteries have a limited number of charge cycles and may eventually need to be replaced. A properly maintained battery can retain up to:
· 90% of its original capacity at 100 full charge and discharge cycle.
· 85% of its original capacity at 300 full charge and discharge cycle.
· 80% of its original capacity at 500 full charge and discharge cycle.
You may choose to replace your battery when it no longer holds sufficient charge to meet your needs.
We recommend replacing the battery if:
· The battery is more than 2 years old. The first 2 digits of the 4-digit serial number on the battery represent the year of manufacture and the other 2 digits represent the date of manufacture.
· The battery is used for 17 months in an environment where the battery is charged once a day.
· The battery is used for 10 months in an environment where the battery is charged more than once a day.
4. Troubleshooting
A weak battery can cause an error message to appear on your device. Before sending your product out for repair, please ensure the battery is working properly. Following are some common errors that may appear on your device:
Common Error Message
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Error Message
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Solution
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Device is dead.
(Display is blank or the unit will not power on)
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Try to cold boot the terminal first. If this does not work, replace the battery with a known good battery.
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Battery low message is popped up or the device goes off while booting.
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The main battery is low. Please replace the battery with fully charged one. If this leaves the device without charging or replacing battery, the data can be lost.
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