Hurricane Season is about to start. How can I protect my computer from power outage which may also cause data loss. Lets start here: What is an uninterruptible power supply (UPS) and why do I need one?
An uninterruptible power supply (UPS) is a battery-driven power supply that helps protect electronic equipment from a sudden loss of power and power surges. It is especially useful with computers and equipment that could suffer damage in a power outage. Many times power may only blink off for a second or 2 and your computer may shut down causing you to lose the work that was open or not saved. If your computer was writing data to your hard drive or reading data on your drive, it may actually cause the drive to crash. If your laptop has a good battery that is charged and working properly, adding a UPS will allow the laptop to run longer and also give it protection from surges.
UPS systems have a power rating and a joules rating. The power rating (Watts) describes the battery capacity which needs to be enough to keep you device or devices running during the power outage and the rating joules is the sensitivity of protection from power surges and brown outs. In both cases, the higher the number the better. For most residential desktop computer, 600 to 1000 watts is best to keep your computer, monitor and router powered up. As for joules, look for something about 400. I do not suggest plugging a laser printer into the battery unless you purchase a much more powerful battery supply. Laser printers use heat which draws a lot of power. And if you do need to keep the printer going during a power outage, purchase a separate battery for the printer.
Here is a link to copy which will help you find the size battery you will need. https://www.apc.com/us/en/tools/ups_selector/home/device NewEgg.com is a great place to buy UPS units since they many times have free shipping!
I personally use the “Kill a watt P3” which is a device that you plug into your wall outlet then plug a device into the Kill a watt. It will tell you the amount of wattage the computer is drawing and also has a few other features like a built in calculator to tell you how much the the electric is costing per month for the device. I would not test heavy electric usage appliances or air conditioners. It could ruin the Kill a Watt unit. If you need more precise measurements on large copiers or air conditioners, you should call an electrician and have the appliance tested. To find a kill a watt device, just search google for “Kill a Watt P3”. You can find other units like this at Home Depot and Walmart, or even Ebay etc.