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Extension cords and related devices, Viii, Plugs and outlets – IBM M400 User Manual

Page 10: Batteries

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Extension cords and related devices

Ensure that extension cords, surge protectors, uninterruptible power supplies, and

power strips that you use are rated to handle the electrical requirements of the

product. Never overload these devices. If power strips are used, the load should not

exceed the power strip input rating. Consult an electrician for more information if you

have questions about power loads, power requirements, and input ratings.

Plugs and outlets

If a receptacle (power outlet) that you intend to use with your computer equipment

appears to be damaged or corroded, do not use the outlet until it is replaced by a

qualified electrician.

Do not bend or modify the plug. If the plug is damaged, contact the manufacturer to

obtain a replacement.

Some products are equipped with a three-pronged plug. This plug fits only into a

grounded electrical outlet. This is a safety feature. Do not defeat this safety feature

by trying to insert it into a non-grounded outlet. If you cannot insert the plug into

the outlet, contact an electrician for an approved outlet adapter or to replace the outlet

with one that enables this safety feature. Never overload an electrical outlet. The

overall system load 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.

Connect and disconnect the equipment from the electrical outlet carefully

Batteries

All IBM personal computers contain a non-rechargeable coin cell battery to provide

power to the system clock. In addition many mobile products such as Thinkpad

notebook PCs utilize a rechargeable battery pack to provide system power when in

portable mode. Batteries supplied by IBM for use with your product have been tested

for compatibility and should only be replaced with IBM 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.

viii

IBM M400 PROJECTOR: User’s Guide