Acer TravelMate 4750, User Manual, Page: 8 / 2286

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Guidelines for safe battery usage
This notebook uses a Lithium-ion battery. Do not use it in a humid, wet or
corrosive environment. Do not put, store or leave your product in or near a heat
source, in a high temperature location, in strong direct sunlight, in a microwave
oven or in a pressurized container, and do not expose it to temperatures over
60° C (140° F). Failure to follow these guidelines may cause the battery to leak
acid, become hot, explode or ignite and cause injury and/or damage. Do not
pierce, open or disassemble the battery. If the battery leaks and you come into
contact with the leaked fluids, rinse thoroughly with water and seek medical
attention immediately. For safety reasons, and to prolong the lifetime of the
battery, charging will not occur at temperatures below 0° C (32° F) or above 40°
C (104° F).
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
operation time becomes noticeably shorter than normal, buy a new battery.
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Use only the approved batteries, and recharge your battery only with the
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.
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