Battery Information - Nokia 5140 Service Manual

Nokia Customer Care

Battery information

Note that a new battery's full performance is achieved only after two or three complete
charge and discharge cycles!
The battery can be charged and discharged hundreds of times but it will eventually wear
out. When the operating time (talk-time and standby time) is noticeably shorter than nor-
mal, it is time to buy a new battery.
Use only batteries approved by the phone manufacturer and recharge the battery only with
the chargers approved by the manufacturer. Unplug the charger when not in use. Do not
leave the battery connected to a charger for longer than a week, since overcharging may
shorten its lifetime. If left unused a fully charged battery will discharge itself over time.
Temperature extremes can affect the ability of your battery to charge.
For good operation times with Ni-Cd/NiMh batteries, discharge the battery from time to
time by leaving the product switched on until it turns itself off (or by using the battery
discharge facility of any approved accessory available for the product). Do not attempt to
discharge the battery by any other means.
Use the battery only for its intended purpose.
Never use any charger or battery which is damaged.
Do not short-circuit the battery. Accidental short-circuiting can occur when a metallic
object (coin, clip or pen) causes direct connection of the + and - terminals of the battery
(metal strips on the battery) 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.
Leaving the battery in hot or cold places, such as in a closed car in summer or winter con-
ditions, will reduce the capacity and lifetime of the battery. Always try to keep the battery
between 15°C and 25°C (59°F and 77°F). A phone with a hot or cold battery may tempo-
rarily not work, even when the battery is fully charged. Batteries' performance is particu-
larly limited in temperatures well below freezing.
Do not dispose of batteries in a fire!
Dispose of batteries according to local regulations (e.g. recycling). Do not dispose as
household waste.
Issue 2 05/05
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