Lenovo ThinkPad Edge E420s (English) User Guide - Page 13
Notice for built-in rechargeable batteries, Lithium coin cell battery notice
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Notice for built-in rechargeable batteries DANGER Do not attempt to replace the internal rechargeable lithium ion batteries. Contact Lenovo Support for factory replacement. Lithium coin cell battery notice DANGER Danger of explosion if battery is incorrectly replaced. When replacing the lithium coin cell battery, use only the same or an equivalent type that is recommended by the 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. The following statement applies to users in the state of California, U.S.A. California Perchlorate Information: Products containing CR (manganese dioxide) lithium coin cell batteries may contain perchlorate. Perchlorate Material - special handling may apply. Go to: http://www.dtsc.ca.gov/hazardouswaste/perchlorate © Copyright Lenovo 2011 xi