Which UPS to buy? Line Interactive or Online UPS

Which UPS Should you buy?

There are different types of UPS systems, line interactive and online UPS systems, which have different main objectives.

A line interactive UPS will generally clean the incoming utility power by taking care of spikes and brownouts and provide you with a short battery backup period to allow you to safely save your work on a computer and shut down your system. They are not meant to be run for extended periods of time – doing so could cause the unit to fail or could even cause a fire.

Online UPS systems on the other hand provide an off-line power source by converting DC battery stored power back to 220V for longer periods of time – but they are also more costly.