Nokia 2690 - Manual (Page 70)

device. This device is intended for use when supplied with power from the following
chargers: AC-3. The exact charger model number may vary depending on the type of
plug. The plug variant is identified by one of the following: E, EB, X, AR, U, A, C, K, or
UB.
The battery can be charged and discharged hundreds of times, but it will eventually
wear out. When the talk and standby times are noticeably shorter than normal,
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
70 Product and safety information
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