12
Power management
This product is powered by a built-in rechargeable battery which cannot be changed. Do not
attempt to replace the battery. Rechargeable battery can be charged and discharged
hundreds of times, but it will eventually wear out. After a period of time that will vary depending
on the use and usage conditions, you may find that the built-in battery will power your product
for only a couple of hours requiring you to charge more frequently.
Charge your device only with the charger provided in the sales package. Unplug the charger
when not in use. Do not leave the device connected to the charger for longer period than
needed, since overcharging may shorten the battery lifetime.
If left unused, a fully charged battery will discharge itself over time.
Temperature extremes may affect the ability of the battery to charge. Always try to keep the
device between 15 °C and 25 °C (59 °F and 77 °F). Leaving the device in hot or cold places,
such as in closed car in summer or winter conditions, will reduce the capacity and lifetime of
the battery. A device with hot or cold battery may not work for a while after being exposed to
extreme temperature differences even when the battery is fully charged. Battery performance
is particularly limited in temperatures well below freezing. Do not charge in humid
environment.
UFO_PHF-601_UG_en.fm Page 12 Wednesday, June 7, 2006 1:20 PM