Acer F900 Smartphone User Guide90Note: Length of battery operation will depend on power consump-tion which is based on system resource use. For example, constantlyusing the backlight or using power-demanding applications willshorten battery life between charges.Design and ergonomics• Stylish, light and robust designWarnings and precautions• Do not use this product near water.• Do not place this product on an unstable cart, stand ortable. If the product falls, it could be seriously dam-aged.• Slots and openings are provided for ventilation toensure reliable operation of the product and to pro-tect it from overheating. These openings must not beblocked or covered. The openings should never beblocked by placing the product on a bed, sofa, rug orother similar surface. This product should never beplaced near or over a radiator or heat register, or in abuilt-in installation unless proper ventilation is pro-vided.• Never push objects of any kind into this productthrough cabinet slots as they may touch dangerousvoltage points or short-out parts that could result in aHeight 117.5 mmWidth 63.5 mmThickness 12.9 mmWeight 155 g (including battery and stylus)