Lenovo S1 Yoga User Manual

Contents

Hazardous voltage, current, and energy levels are present inside any component that has this labelattached. There are no serviceable parts inside these components. If you suspect a problem withone of these parts, contact a service technician.External devicesCAUTION:Do not connect or disconnect any external device cables other than USB cable while the computerpower is on; otherwise, you might damage your computer. To avoid possible damage to attacheddevices, wait at least five seconds after the computer is shut down to disconnect external devices.General battery noticeDANGERPersonal computers manufactured by Lenovo contain a coin cell battery to provide power tothe system clock. In addition, many mobile products, such as notebook computers, utilize arechargeable battery pack to provide system power when in portable mode. Batteries supplied byLenovo for use with your product have been tested for compatibility and should only be replacedwith approved parts.Never attempt to open or service any battery. Do not crush, puncture, or incinerate batteries orshort circuit the metal contacts. Do not expose the battery to water or other liquids. Only rechargethe 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 flameto “vent” from the battery pack or coin cell. If you notice any signs of bulging, leakage or corrosionon the exterior of the product, this may be the result of an internal battery fault. If this occurs, stopusing the product immediately and please contact the Lenovo Support team for further instructions.Factory replacement of the batteries may be required.Batteries can degrade when they are left unused for long periods of time. For some rechargeablebatteries (particularly Lithium Ion batteries), leaving a battery unused in a discharged state couldincrease the risk of a battery short circuit, which could shorten the life of the battery and can alsopose a safety hazard. Do not let rechargeable Lithium-Ion batteries completely discharge or storethese batteries in a discharged state.Do not attempt to replace the internal batteries:Replacement of any batteries inside of your computer must be done by a Lenovo-authorized repair facilityor a Lenovo-authorized technician. The Lenovo-authorized repair facilities or technicians recycle Lenovobatteries according to local laws and regulations.Built-in rechargeable battery noticeDANGERDo not attempt to replace the internal rechargeable lithium ion batteries. Contact Lenovo Supportfor factory replacement.viii User Guide