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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, power adapters, and many accessories can generate heat when










turned on and when batteries are charging. Always follow these basic











precautions:
v
Do not leave your computer, power adapter, or accessories in contact with













your lap or any part of your body for an extended period when the














products are functioning or when the battery is charging. Your computer,











power adapter, and many accessories produce some heat during normal










operation. Extended contact with the body could cause discomfort or,










potentially, a skin burn.




v
Do not charge the battery or operate your computer, power adapter, or













accessories near flammable materials or in explosive environments.








v
Ventilation slots, fans, and heat sinks are provided with the product for













safety, comfort, and reliable operation. These features might inadvertently









become blocked by placing the product on a bed, sofa, carpet, or other













flexible surface. Never block, cover, or disable these features.








Inspect your desktop computer for dust accumulation at least once every three












months. Before inspecting your computer, turn off the power and unplug the












computer’s power cord from the electrical outlet; then remove any dust from












vents and perforations in the bezel. If you notice external dust accumulation,












then examine and remove dust from the inside of the computer including heat













sink inlet fins, power supply vents, and fans. Always turn off and unplug the














computer before opening the cover. If possible, avoid operating your computer












within two feet of high-traffic areas. If you must operate your computer in or














near a high-traffic area, inspect and, if necessary, clean your computer more












frequently.
For your safety and to maintain optimum computer performance, always










follow these basic precautions with your desktop computer:








v
Keep the cover closed whenever the computer is plugged in.











v
Regularly inspect the outside of the computer for dust accumulation.











Chapter 1. Important safety information
13

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Desktops - M57e Desktop (ThinkCentre) (2.85 mb)

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