Lenovo Safety and General Information Guide - Manual (Page 7)

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Chapter 1. Important safety information
• Power cords, plugs, power adapters, extension cords, surge protectors, or
power supplies that are cracked, broken, or damaged
• Signs of overheating, smoke, sparks, or fire
• Damage to a battery (such as cracks, dents, or creases), discharge from a
battery, or a buildup of foreign substances on the battery
• A cracking, hissing or popping sound, or strong odor that comes from the
product
• Signs that liquid has been spilled or an object has fallen on to the computer
product, the power cord or power adapter
• The computer product, power cord, or power adapter has been exposed to
water
• The product has been dropped or damaged in any way
• The product does not operate normally when you follow the operating
instructions
Note: If you notice these conditions with a product (such as an extension cord)
that is not manufactured for or by Lenovo, stop using that product until
you can contact the product manufacturer for further instructions, or until
you get a suitable replacement.