Holux GPSmile NAV iSlim Product User Manual page 20

This device uses a built-in rechargeable battery. Please note the
following:
•
Please do not charge in a hot environment, such as on a balcony
or an area exposed to direct sunlight.
•
Do not wait until the battery is depleted to recharge.
•
When the unit is not in use for a long time, please remove the
battery pack from the device.
•
When charging a completely depleted battery, wait at least one
minute before starting up the system. This will prevent excessive
battery discharge.
GPSmile61
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