I've owned 3 of these for between 3 - 5 years and use them to ride out short outages and provide additional smoothing for any power spikes to protect computer equipment and entertainment center. I've recently purchased a fourth for an additional home office. In the time I've owned them I've had to replace two sets of batteries, but the units themselves have continued to perform without faults. As others have mentioned, the units can be quite noisy when initially charging or recharging after an outage, and charging can take quite a long time (24 hours or longer if fully drained). If noise is a concern you can consider a lower power fan-less...view more

This is a very basic UPS but it is rare to find one at this price with Automatic Voltage Regulation. I get a lot of undervolt (brown out) issues and since installing this UPS those issues have disappeared.

The fan does stay on for 24hrs when first plugged in but does eventually stop so be patient. Apart from that its been a great UPS for the month that I've used it.

Good reliable UPS

Working well. I got close to an hour uptime with a 120W load. It does have a fan, which is quite noisy. It seems to come on only when the battery needs charging, so the unit is silent most of the time.