![]() For example, let's say your daughter just bought a new $15 1500W hair dryer made in some back woods factory in China with parts manufactured in a similar factory upriver and assembled by an underaged labor force supervised by unscrupulous management over-watched by corrupt government officials (breathe, breathe). The problem with whole home surge protection is they do nothing for excessive surges and spikes that originate from within the home. The run time the backup power provides should be used to "gracefully" save any open documents, close out any running programs, and then properly shut down the computers and other sensitive electronics until the grid power is fully restored. But note this backup power should not be used so you can keep using the computers or to watch TV indefinitely. And (2) the batteries provide backup power during a full power outage, or when extreme surges, spikes, dips and sags are encountered. These include dips (opposite of spikes), sags (opposite of surges) and brownouts (long duration sags) - all of which can cause excessive stress and strain on your electronics' power supplies and own internal voltage regulators. (1) They are used to "boost" the voltage during low voltage events. While these devices are often called battery backups, providing power during a full power outage is really just a minor benefit these provide. A UPS (uninterruptible power supply) with AVR (automatic voltage regulation) will clean up the power coming off your power grid before it gets fed to your valuable electronics. Lastly, you should consider putting your valuable electronics on a "good" UPS with AVR. Use it to test all the outlets in the home and if a fault is shown, have it fixed by a qualified electrician. These testers can be found for your type and voltage outlet, foreign or domestic, (like this one for the UK) at most home improvement stores, or even the electrical department at Wal-Mart. I recommend one with a GFCI (ground fault circuit interrupt) indicator as it can be used to test bathroom and kitchen outlets (outlets near water) too. ![]() Every home and every computer user should have access to a AC Outlet Tester to ensure your outlet is properly wired and grounded to Earth ground. Then you need to have your house wiring checked out. If this is happening more than once every so often, then, starting right now, you need to unplug your valuable electronics from the wall EVERY TIME there is severe weather in your area.
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