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discharged hundreds of times, but it will eventually wear out. When the operation time becomes noticeably shorter than normal, buy a new battery. Use only Acer approved batteries, and recharge your battery only with Acer approved chargers designated for this device.

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 spare battery in your pocket or purse. Short-circuiting the terminals may damage the battery or the connecting object.

The capacity and lifetime of the battery will be reduced if the battery is left in hot or cold places, such as in a closed car in summer or winter. 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 especially 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.

Wireless devices may be susceptible to interference from the battery, which could affect performance.

Potentially explosive environments

Switch off your device in any area with a potentially explosive atmosphere and obey all signs and instructions. Potentially explosive atmospheres include areas where you would normally be advised to turn off your vehicle engine. Sparks in such areas could cause an explosion or fire resulting in bodily injury or even death. Switch off the notebook near gas pumps at service stations. Observe restrictions on the use of radio equipment in fuel depots, storage and distribution areas; chemical plants; or where blasting operations are in progress. Areas with a potentially explosive atmosphere are often, but not always, marked. They include below deck on boats, chemical transfer or storage facilities, vehicles using liquefied petroleum gas (such as propane or butane), and areas where the air contains chemicals or particles such as grain, dust or metal powders. Do not switch the notebook on when wireless phone use is prohibited or when it may cause interference or danger.

Replacing the battery pack

The notebook uses lithium batteries. Replace the battery with the same type as that which came bundled with your product. Use of another battery may present a risk of fire or explosion.

Warning! Batteries may explode if not handled properly. Do not disassemble or dispose of them in fire. Keep them away from children. Follow local regulations when disposing of used batteries.

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Acer 4320 Series, 4720 Series manual Potentially explosive environments, Replacing the battery pack

4320 Series, 4720 Series specifications

The Acer 4720 and 4320 Series laptops represent a blend of performance, portability, and affordability, making them popular choices for students and professionals alike. Released in the mid-2000s, these models were targeted towards users who required reliable computing power for daily tasks, including web browsing, document editing, and multimedia consumption.

The Acer 4720 Series is characterized by its robust performance capabilities, powered by Intel Core processors. These processors provide ample speed and responsiveness for multitasking. The 15.4-inch display offers a balanced resolution that caters to both work and entertainment, and it features Acer's CrystalBrite technology, which enhances color vibrancy and clarity, making images and videos appear more vivid.

On the other hand, the 4320 Series, a slightly more budget-friendly option, shares some similar features but comes with a 14.1-inch display. This smaller form factor makes the 4320 Series a highly portable option for users on the go. It is equipped with AMD processors, providing sufficient power for everyday tasks and decent graphical capabilities, thanks to integrated graphics.

Both series boast a comfortable keyboard and a responsive touchpad, crucial for prolonged use without discomfort. The battery life is commendable, allowing users to work on the move without constantly searching for power outlets. Additionally, the laptops come equipped with multiple USB ports, HDMI output, and card readers, enhancing connectivity options.

In terms of storage, both series typically offer a range of HDD options, providing flexibility for users needing more space for files, applications, and multimedia. The laptops also feature onboard speakers and a webcam, essential for video conferencing and casual multimedia use.

Acer's commitment to build quality is evident in these series, offering durable chassis that withstand the rigors of daily use. The 4720 and 4320 Series laptops also come pre-installed with Windows operating systems, granting users immediate access to essential productivity applications.

In summary, the Acer 4720 and 4320 Series laptops are solid choices for those in need of reliable computing tools that combine functionality and portability. With their well-rounded specifications and user-friendly features, these laptops continue to hold value even in today’s competitive market.