Nokia N97 N97 User Manual page 138

replace the battery. Use only Nokia approved batteries, and recharge your battery
only with Nokia approved chargers designated for this device.
If a battery is being used for the first time or if the battery has not been used for a
prolonged period, it may be necessary to connect the charger, then disconnect and
reconnect it to begin charging the battery. If the battery is completely discharged, it
may take several minutes before the charging indicator appears on the display or
before any calls can be made.
Safe removal. Always switch the device off and disconnect the charger before
removing the battery.
Proper charging. Unplug the charger from the electrical plug and the device when
not in use. Do not leave a fully charged battery connected to a charger, since
overcharging may shorten its lifetime. If left unused, a fully charged battery will lose
its charge over time.
Avoid extreme temperatures. Always try to keep the battery between 15°C and 25°C
(59°F and 77°F). Extreme temperatures reduce the capacity and lifetime of the
battery. A device with a hot or cold battery may not work temporarily. Battery
performance is particularly limited in temperatures well below freezing.
Do not short-circuit. Accidental short-circuiting can occur when a metallic object such
as a coin, clip, or pen causes direct connection of the positive (+) and negative (-)
terminals of the battery. (These look like metal strips on the battery.) This might
happen, for example, when you carry a spare battery in your pocket or purse. Short-
circuiting the terminals may damage the battery or the connecting object.
Disposal. Do not dispose of batteries in a fire as they may explode. Dispose of batteries
according to local regulations. Please recycle when possible. Do not dispose as
household waste.
Leak. Do not dismantle, cut, open, crush, bend, puncture, or shred cells or batteries.
In the event of a battery leak, prevent battery liquid contact with skin or eyes. If this
happens, flush the affected areas immediately with water, or seek medical help.
Damage. Do not modify, remanufacture, attempt to insert foreign objects into the
battery, or immerse or expose it to water or other liquids. Batteries may explode if
damaged.
Correct use. Use the battery only for its intended purpose. Improper battery use may
result in a fire, explosion, or other hazard. If the device or battery is dropped,
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especially on a hard surface, and you believe the battery has been damaged, take it
to a service centre for inspection before continuing to use it. Never use any charger
or battery that is damaged. Keep your battery out of the reach of small children.
Nokia battery authentication guidelines
Always use original Nokia batteries for your safety. To check that you are getting an
original Nokia battery, purchase it from a Nokia authorised service centre or dealer,
and inspect the hologram label using the following steps:
Authenticate hologram
1 When you look at the hologram on the label, you should see the Nokia
connecting hands symbol from one angle and the Nokia Original Enhancements
logo when looking from another angle.
2 When you angle the hologram left, right, down and up, you should see 1, 2, 3
and 4 dots on each side respectively.
Successful completion of the steps is not a total assurance of the authenticity of the
battery. If you cannot confirm authenticity or if you have any reason to believe that
your Nokia battery with the hologram on the label is not an authentic Nokia battery,
you should refrain from using it, and take it to the nearest Nokia authorised service
centre or dealer for assistance.