Lenovo 30141DU - IdeaCentre Q100 Mini PC Safety And Warranty Manual page 45

should not exceed 80 percent of the branch circuit rating. Consult an electrician for more information if you have
questions about power loads and branch circuit ratings.
Be sure that the power outlet you are using is properly wired, easily accessible, and located close to the
equipment. Do not fully extend power cords in a way that will stress the cords.
Be sure that the power outlet provides the correct voltage and current for the product you are installing.
Carefully connect and disconnect the equipment from the electrical outlet.
External devices
Do not connect or disconnect any external device cables other than 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.
Batteries
All personal computers manufactured by Lenovo contain a non-rechargeable coin cell battery to provide power
to the system clock. In addition, many mobile products, such as notebook computers, utilize a rechargeable
battery pack to provide system power when in portable mode. Batteries supplied by Lenovo for use with your
product have been tested for compatibility and should only be replaced with approved parts.
Never attempt to open or service any battery. Do not crush, puncture, or incinerate batteries or short circuit the
metal contacts. Do not expose the battery to water or other liquids. Only recharge the 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 flame to "vent"
from the battery pack or coin cell. If your battery is damaged, or if you notice any discharge from your battery or
the buildup of foreign materials on the battery leads, stop using the battery and obtain a replacement from the
battery manufacturer.
Batteries can degrade when they are left unused for long periods of time. For some rechargeable batteries
(particularly Lithium Ion batteries), leaving a battery unused in a discharged state could increase the risk of a
battery short circuit, which could shorten the life of the battery and can also pose a safety hazard. Do not let
rechargeable Lithium-Ion batteries completely discharge or store these batteries in a discharged state.
Heat and product ventilation
Computers generate heat when turned on and when batteries are charging. Notebook computers can generate
a significant amount of heat due to their compact size. Always follow these basic precautions:
• Do not leave the base of your notebook computer in contact with your lap or any part of your body for an
extended period when the computer is functioning or when the battery is charging. Your computer produces
some heat during normal operation. Extended contact with the body could cause discomfort or, potentially,
a skin burn.
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Safety and warranty guide