Lenovo 3000 H305 Hardware Maintenance Manual page 11

CAUTION:
When replacing the lithium battery, use only Part Number 33F8354 or
an equivalent type battery recommended by the manufacturer. If your
system has a module containing a lithium battery, replace it only with
the same module type made by the same manufacturer. The battery
contains lithium and can explode if not properly used, handled, or
disposed of.
Do not:
• Throw or immerse into water
• Heat to more than 100°C (212°F)
• Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
CAUTION:
When laser products (such as CD-ROMs, DVD-ROM drives, fiber optic
devices, or transmitters) are installed, note the following:
• Do not remove the covers. Removing the covers of the laser product
could result in exposure to hazardous laser radiation. There are no
serviceable parts inside the device.
• Use of controls or adjustments or performance of procedures other
than those specified herein might result in hazardous radiation
exposure.
DANGER:
Some laser products contain an embedded Class 3A or Class 3B laser
diode. Note the following:
Laser radiation when open. Do not stare into the beam, do not view
directly with optical instruments, and avoid direct exposure to the
beam.
Chapter 2. Safety information
9