Lenovo 3000 J Series Bedienungsanleitung PDF herunterladen (Seite 12)

Be sure that the power outlet you are using is properly wired, easily accessible,

and located close to the equipment. Do not fully extend power cords in a way that

will stress the cords.

Be sure that the power outlet provides the correct voltage and current for the

product you are installing.

Carefully connect and disconnect the equipment from the electrical outlet.

External devices

Do not connect or disconnect any external device cables other than USB and 1394

cables while the computer power is on; otherwise, you might damage your

computer. To avoid possible damage to attached devices, wait at least five seconds

after the computer is shut down to disconnect external devices.

Batteries

All personal computers manufactured by Lenovo contain a non-rechargeable coin

cell battery to provide power to the system clock. In addition, many mobile

products, such as notebook computers, utilize a rechargeable battery pack to

provide system power when in portable mode. Batteries supplied by Lenovo for

use with your product have been tested for compatibility and should only be

replaced with approved parts.

Never attempt to open or service any battery. Do not crush, puncture, or incinerate

batteries or short circuit the metal contacts. Do not expose the battery to water or

other liquids. Only recharge the battery pack strictly according to instructions

included in the product documentation.

Battery abuse or mishandling can cause the battery to overheat, which can cause

gasses or flame to “vent” from the battery pack or coin cell. If your battery is

damaged, or if you notice any discharge from your battery or the buildup of

foreign materials on the battery leads, stop using the battery and obtain a

replacement from the battery manufacturer.

Batteries can degrade when they are left unused for long periods of time. For some

rechargeable batteries (particularly Lithium Ion batteries), leaving a battery unused

in a discharged state could increase the risk of a battery short circuit, which could

shorten the life of the battery and can also pose a safety hazard. Do not let

rechargeable Lithium-Ion batteries completely discharge or store these batteries in a

discharged state.

Heat and product ventilation

Computers generate heat when turned on and when batteries are charging.

Notebook computers can generate a significant amount of heat due to their

compact size. Always follow these basic precautions:

v Do not leave the base of your notebook computer in contact with your lap or

any part of your body for an extended period when the computer is functioning

or when the battery is charging. Your computer produces some heat during

normal operation. Extended contact with the body could cause discomfort or,

potentially, a skin burn.

v Do not operate your computer or charge the battery near flammable materials or

in explosive environments.

v Ventilation slots, fans, and/or heat sinks are provided with the product for

safety, comfort, and reliable operation. These features might inadvertently

x User Guide

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