MiTAC Mio N169 Manual page 27

CAUTION: For optimal performance of the lithium battery, take note of the following:
The environment temperature for charging should be 0~40°C.
When a battery is fully discharged due to a long period of usage or idleness,
connect the device to AC power for charging, and wait for at least 5 minutes before
turning it on.
Do not charge the battery where the temperature is high (e.g. in direct sunlight).
There is no need to fully discharge the battery before charging. You can charge the
battery before it is discharged.
If you will not use the product for a long period of time, be sure to fully charge the
battery at least once every two weeks. Over discharge of the battery can affect the
charging performance.
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