These battery backups can save you when the lights flicker or fail.
Simon Hattinga Verschure / UnsplashI thought I was prepared for power outages. I had flashlights, a collection of topped-up external battery packs for my household devices, and the mental fortitude to eat all the ice cream in the freezer before it melted. Despite this, I was unprepared for a momentary dip in the voltage coursing through my home., I was editing video without a care in the world when the time came to render and compress 45 minutes of flawless content.
These power supplies can range in scale dramatically. On the low end, some provide just enough power to keep your modem and router running while you work on your laptop and wait for the power to return. On the high end,. For the purposes of this article, we’ll assume you’re not working on a municipal scale.
There are three basic UPS types: standby, line interactive, and double-conversion. Standby models just switch to battery power as mentioned above, though their output is less consistent. In a standby UPS, power fluctuations above or below the desired range prompt a switch from mains current to the battery, which can take up to 25 milliseconds.
And finally, unless you are running a data center, you probably don’t need a double conversion UPS. These models used to be reserved for massive IT installations, but have since scaled down to the consumer level. Though they’ve become smaller, their prices remain high. That said, a double inversion UPS is the most stable of the three basic options because it never has to switch its power source. The AC goes straight to the battery, and the battery power is converted back to AC, at all times.
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