How long do you think the CyberPower 650VA battery back up will power a cable modem? I can't find the wattage on the modem. It is a Ubee modem and Ubee refers you to Spectrum and dealing with Spectrum is awful. null

Question

TechSupport · Accepted Answer

Most cable modems operate at 10-20W.  Assuming 20W, you will get approximately an hour of run-time depending on environmental conditions.

If you look at your power transformer (power supply for your cable modem), there will be an output voltage and amperage listed.  Take the volts times the amps to get your actual wattage.

Philly · Answer

Get real how long will my tv last when power goes out!!

DCreviews · Answer

Supposedly for SEVERAL hours if a small load.

Meadia48 · Answer

Had a power outage from 3am until 730am and this unit powered my entire cable system and did not have to reboot.

Daniel · Answer

I had a previous version of this UPS to provide backup power for my TV and DVR. It lasted for about 6 years before I had to replace it.

Buffalodong · Answer

Well, it keeps my Imac running for about 7 minutes tops when the power goes out.
Might keep your modem running a bit longer.

“How long do you think the CyberPower 650VA battery back up will power a cable modem? I can't find the wattage on the modem. It is a Ubee modem and Ubee refers you to Spectrum and dealing with Spectrum is awful.”

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