What size UPS you need, which type – line-interactive or online, how long it should run, and what to check before you buy.
How to estimate UPS runtime, how many batteries and what capacity you need, and why a 100Ah battery does not last as long as you might think.
How line-interactive and online (double-conversion) UPS systems work, the pros and cons of each, and which one suits which equipment.
What 1000VA/600W on a UPS means, what power factor is, and how to avoid overloading your UPS.
EN
KA
