OPTI-UPS ES550C

Category: Review on Opti-UPS PowerES ES550C-USB 550VA/385W Line-Interactive UPS

Posted by: 2-Dec-2006

Strengths: it works great and it is cheap

Weaknesses: short but enough of battery back-up time

This UPS works great and I never need to worry about my computer during power shortage. It beeps when the power goes out to alert you if you are sleeping or blind to the fact that the power just went out. However, I would not recommend this kind of UPS for the electronic devices which exceed the UPS capacity voltage/wattage. Also, if you are looking for a UPS which can provide much higher voltage/wattage, you might need to compare the UPS voltage/wattage rating against your electronic rating to judge how much time you get from power out to battery drain. In addition, the advertised backup runtime on batteries is 2.5 mins. So if you only need a minute to save work and then safely turn off the PC and LCD, then this is the UPS for you! Plus, it is cheap compare to the other UPSes.