Operation Manual

Table Of Contents

External devices

CAUTION:

Do not connect or disconnect any external device cables other than Universal Serial Bus (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.

General battery notice

DANGER

Batteries supplied by Lenovo for use with your product have been tested for compatibility and

should only be replaced with approved parts. A battery other than the one specified by Lenovo, or a

disassembled or modified battery is not covered by the warranty.

Battery abuse or mishandling can cause overheat, liquid leakage, or an explosion. To avoid possible

injury, do the following:

• Do not open, dissemble, or service any battery.

• Do not crush or puncture the battery.

• Do not short-circuit the battery, or expose it to water or other liquids.

• Keep the battery away from children.

• Keep the battery away from fire.

Stop using the battery if it is damaged, or if you notice any discharge or the buildup of foreign

materials on the battery leads.

Store the rechargeable batteries or products containing the rechargeable batteries at room

temperature, charged to approximately 30 to 50% of capacity. We recommend that the batteries be

charged about once per year to prevent overdischarge.

Do not put the battery in trash that is disposed of in landfills. When disposing of the battery, comply

with local ordinances or regulations.

Notice for built-in rechargeable battery

DANGER

Do not attempt to remove or replace the built-in rechargeable battery. Replacement of the battery

must be done by a Lenovo-authorized repair facility or technician.

Only recharge the battery strictly according to instructions included in the product documentation.

The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local

laws and regulations.