Battery information

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Battery information

Charging and discharging

Your device is powered by a rechargeable battery. The full performance of a new battery 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 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.

Unplug the charger from the electrical plug and the device when not in use. Do not leave 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.

If the battery is completely discharged, it may take a few minutes before the charging indicator appears on the display or before any calls can be made.

Use the battery only for its intended purpose. Never use any charger or battery that is damaged.

Do not short-circuit the battery. 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

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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, 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 device with a hot or cold battery may not work temporarily, even when the battery is fully charged. Battery performance is particularly limited in temperatures well below freezing.

Do not dispose of batteries in a fire as they may explode. Batteries may also explode if damaged. Dispose of batteries according to local regulations. Please recycle when possible. Do not dispose as household waste.

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 an authorized Nokia dealer, look for the Nokia Original Enhancements logo on the packaging and inspect the hologram label using the following steps:

Successful completion of the four steps is not a total assurance of the authenticity of the battery. If you have any reason to believe that your battery is not an authentic original

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Nokia N91 manual Battery information, Charging and discharging
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N91 specifications

The Nokia N91, launched in 2005, marked a significant milestone in the evolution of mobile phones, particularly as a music-centric device. Positioned as a multimedia smartphone, the N91 was tailored for music enthusiasts and boasted an array of features that set it apart from its contemporaries.

One of the standout characteristics of the Nokia N91 was its impressive storage capacity. It came equipped with an internal hard drive, offering 4GB of storage—an astounding amount for its time. This allowed users to store a substantial library of songs, making it one of the first phones to integrate such extensive media storage into its design.

The N91 featured a robust media player capable of handling various audio formats, including MP3, AAC, and MPEG-4. The user interface was designed to facilitate easy navigation through song libraries and playlists, catering to users who desired quick access to their favorite tracks. It also supported playlists and allowed for easy synchronization with a PC, enhancing the user experience.

In terms of connectivity, the Nokia N91 supported Wi-Fi and 3G networks, providing fast data access for downloading music and streaming content. The inclusion of Bluetooth technology was another highlight, allowing users to connect wireless headphones or speakers with ease. These features made the N91 not just a phone but a fully-fledged portable media player.

The device featured a striking design, with a metallic finish and a sleek form factor that appealed to style-conscious consumers. The 2.4-inch TFT display was optimal for viewing album art and managing playlists. Additionally, the N91 included a dedicated music control interface with physical buttons, making it convenient for users to control playback without having to navigate through menus.

On the photography front, the Nokia N91 had a 2-megapixel camera, a respectable feature for the time, allowing users to capture memories alongside their music experiences.

With its robust battery life and features tailored for music consumption, the Nokia N91 paved the way for future smartphones, blending phone capabilities with a rich multimedia experience. It remains a notable device in Nokia's legacy, representing an era where mobile phones began to transition into multifunctional gadgets that catered to a range of user needs beyond communication.
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