APC SMC1500 Smart-UPS

• Output Power Capacity 900 Watts/1500 VA
• Nominal Input Voltage 120V
• Battery Type Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof

The "SMC" line differers from APC's "SMT" line mainly in that you can't plug in their $220 Network Management Card. If you will need that level of sophistication, by all means look at the APC Smart-UPS SMT1500 1500VA 120V LCD UPS System instead.

(Note that APC's older "SC" line that the "SMC" line has now replaced delivered an inferior type of power that only vaguely approximated, through a series of stair-steps, the smooth curves of normal power. The new SMCs deliver the same smooth sine-wave power as the SMTs, erasing the critical difference between the two.)

I've been buying APC sine-wave UPSes for around a decade now and have been very happy. They are smart looking and work well.

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This unit was connected to a mid size Desktop and LED monitor and sustained very well with no issue during power outage. It had registered 2 1/2 hours available battery resource although power was restored within 30min.

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I got this to use with my workstation. I am not on a server network, so the business software was a bit of overkill, but still does the job I need. My workstation and 24" LCD monitor together use about 200 watts of power. The Smart-UPS is rated 900 watts, so there is plenty of reserve. Basically, the closer one gets to the rated capacity of this back-up supply, the shorter the time available before built in battery depletes. The software tells me that I have 50 minutes of reserve power, which is more than enough to close programs and shut down during an extended power disruption. A smaller unit would have worked for me, but I tend toward conservatism. Besides, I may have a more power hungry computer in the future? Nice LCD on the front to give you basic info, like the voltage level of your house supply, the charge level of the batteries, minutes remaining if on back-up. The software allows you to configure voltage levels at which the back-up kicks in. The SW also gives you a report on power events and the time plotted quality of your house power. More that adequate for my needs. Very satisfied. Weighs nearly 50 pounds. Batteries are heavy and user replaceable.

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works well with servers and recovers well from brown outs. Since we installed it we've never had a problem with the network dropping connections and having to reboot servers and PC or power cycle the router

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Can't give it any more stars until have more time using it. So far it had a rattling noise, which happened to be the case. I've put some weight on it per the APC tech support and it has operated fine. Just seems crazy that one has to do that!