The phone may remind you to discharge the battery, by presenting a series of battery-advice messages. Press W or 2. to page through the information, or press &/5 to clear the messages.

Important Battery Information

Use only batteries and chargers approved by the phone manufacturer.

When a charger is not in use, disconnect it from the power source. Do not leave the battery connected to a charger for longer than a week; overcharging may shorten its life.

If left unused, a fully charged battery may completely drain (discharge) in 1 - 4 weeks.

Never use any charger or battery that is damaged or worn out.

Use the battery only for its intended purpose.

Do not short circuit the battery. Accidental short cir- cuiting can occur when a metallic object (e.g. coin, clip or pen) causes direct connection of the two termi- nals of the battery (metal strips on the back of 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 conditions, reduces the capacity and lifetime of the battery. Always try to keep the battery between 41°F and 95°F (5°C and 35°C). A phone with a hot or cold battery may tempo- rarily not work (or charge) even if the battery is fully charged. NiMH battery performance is particularly limited in temperatures below 14°F (-10°C).

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Nokia 252 owner manual Important Battery Information