Lenovo ThinkPad X1 Carbon Setup Manual page 6

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 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.
Notice for non-rechargeable coin-cell battery
DANGER
Do not attempt to replace the non-rechargeable coin-cell battery.
Replacement of the battery must be done by a
Lenovo-authorized repair facility or technician.
The Lenovo-authorized repair facilities or technicians recycle
Lenovo batteries according to local laws and regulations.
PN: SP40G55016
Printed in China