Question about Belkin (F6C800-UNV-PL) UPS System

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F6C800 no pwer to backup receptacles

Batteries are fully charged to 13.3 volts each. Trickle charge current flows when power is on. When AC power removed, I get power to the backup receptacles for about 2 seconds, then I hear a relay click and they turn off. Under this condition, the yellow light is on steadily (even after the receptacles click off). I do not see a red light (alarm) under any conditions. So I think the batteries are good (I tried it out with a fresh battery too and the problem remains).

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Re: F6C800 no pwer to backup receptacles

From original poster: yes, the batteries were indeed bad. Showed full voltage on a voltmeter but had no discharge capacity at all. Batteries replaced, unit works properly now.

Posted on Apr 18, 2007

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Re: F6C800 no pwer to backup receptacles

That´s pretty strange and i would say that the batteries aren´t properly charged, try to let them charging over night without any load. good luck

Posted on Feb 27, 2007

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My sukam 800VA inverter is not being charging even if there is power, And it is continuous beeping in backup mode. So what I should do now.

Can your charge the batteries at a gas station, then plug in to see if the internal charger is blown? Or just take out the batteries and disconnect them, Then, hook up a volt meter to the batteries. If <5 volts , replace and try again. Mine wouldnt work and when I put in a spare, worked fine. One of the 12V batteries was D E A D. As to not charging fault, with a known good batte[ry] [ries] in, measure the voltage. SHould be about 13 volts or more after a while. If say 12V, you may have a dud transformer, fuse or rectifier (diode). I had a blown fuse and and open transformer after hurricane Sandy. Replaced botha nd it works fine now.

Oct 27, 2014 | UPS Battery Backup Systems

1 Answer

Belkin ups f6c800 no lights

replace it with new batteries.

Feb 02, 2014 | UPS Battery Backup Systems

1 Answer

How long do batteries last

If they cannot hold the charge or do not charge then get rid of the thing and get a new one. Should be much cheaper than when you bought the one you have now.

Sep 22, 2013 | Belkin (F6C800-UNV-PL) UPS System

2 Answers

Pac makes continous sound

What is the sound? Is the device working normally? Are there any lights or indicators? Do they indicate a fault or error?

A UPS runs on standard 110-120 VAC power. It converts the input power to DC and charges internal batteries, then back to AC. Connected devices actually run on the conditioned 115-120 VAC output. The batteries serve as a short term backup power source.

The electronics in the UPS can produce hum or high pitched tones. The sound should not be annoying. If it is louder than connected equipment (computers) it may indicate a problem. Hum is usually 60 Hz harmonics and difficult to eliminate. This harmonic may be transferred to audio equipment such as speakers or radios. A high pitched tone can be related to the rectifiers for the convertor/invertor. If the tone is loud, it means the rectifiers are drawing a lot of current. This is usually related to bad batteries.

Measure the voltage on the output receptacles. It should be 115-120 VAC. Disconnect everything on the output receptacles. Unplug the UPS from it's power source. If the output power dies within 1 minute, the batteries need to be replaced.

Jul 19, 2012 | APC UPS Battery Backup Systems

1 Answer

U p s by pass l e d flashing light

Batteries in the UPS typically last 3 to 5 years and it depends upon several factors. Including the number of times the unit must go on battery power and environmental conditions. There are usually several batteries in the UPS and while the battery voltage may show 13 volts, this may only be a float charge/voltage and a true indication of the battery voltage and condition requires the batteries to be tested under a load. If one battery is faulty in a set of batteries it will causes the whole battery system to fail and indicate a battery fault.
A faulty charging circuit will not charge the batteries and will also cause a fault condition.

Nov 29, 2009 | Liebert (PS2200RT2230) UPS System

1 Answer

Batteries ate not charging.

First suspect the battery. As I guide I have split the task into the following steps.

1. Get a voltmeter and test the battery. It should report 12.4 or 12.6 volts. Branded batteries frequently incorporate a battery status indicator in the form of a watch glass at the top. The color change indicates the battery condition.

2. Now connect the battery with the UPS leads securely and plug into AC mains (with electricty). Test the battery terminals for voltage. If voltage is between 13 to 14.5 volts then the charger is OK. If not then check if the fuse with the DC charger is blown. With the battery disconnected check voltage between leads. It should be zero (if it showed zero volts with battery connected). If not then the charger is faulty. Also if it shows 13 - 14.5 volts with battery connected and disconnected then it is OK.

3. Re-check for any blown internal fuses.

Aug 11, 2009 | QVS NetStar (UPS650A) UPS System

2 Answers

I recently purchased a used Belkin F6C800-UNV UPS, and discovered it had bad batteries. I replaced both batteries, and charged the replacement batteries overnight. The UPS appears to be working correctly,...

This is normal in some lower end UPS's, the voltage can swing quite a bit, a drop of 40 seems like quite a bit but it's out of the question. It will also adapt to what is plugged in yes. Ultimately to test you would want to try it with something like an actual PC plugged in and make sure it stays running. I'd say otherwise it sounds normal to me.

Jul 10, 2009 | Belkin (F6C800-UNV-PL) UPS System

2 Answers

Batery faillure

Advanced Battery Management Technology Prevents Premature Failure and Significantly Extends Battery Service Life
Batteries are the most critical component in the reliability of any UPS, but they face three fundamental challenges: All Batteries Need Charging
But extended charging significantly shortens battery life. Most batteries are charged with a trickle-charging process (a constant voltage feeding a low current to the battery). This method dries the electrolyte and corrodes the plates, reducing potential life by up to 50%.
Batteries Take Time To Recharge
Users can’t wait. During prolonged power outages, the UPS batteries will discharge and not recharge until the power returns. When there is a subsequent power failure before the batteries recharge, the computer will not have full backup time. Overly rapid charging can cause premature battery failure, so the trick is to charge at the fastest rate that is safe for the battery.

All Batteries Will Eventually Fail
The question isn’t “Will it happen?” but “When will it happen?” Because UPS batteries are valve-regulated, sealed lead acid, there has previously been no practical way to provide the user with any meaningful advance notice that batteries need to be replaced. In the past, the only way to know when the batteries were dead was when the power failed and took your computer down with it. Until now, typical UPS batteries have required replacement every two to three years.
Our exclusive ABM technology solves these UPS battery problems. It significantly increases the life of UPS batteries (see Figure 1), provides the fastest safe recharge time, and provides reliable advanced notice when the batteries need replacement. By extending battery life and virtually eliminating this major cause of surprise load crashes, we are able to offer the industry’s longest and most inclusive warranties on all products that incorporate ABM. No other manufacturer can make this statement.
ABM technology is available on Powerware 5115, 5125, 9120, 9125, 9140, 9155, 9170+, 9355, and BladeUPS UPSs.

Jul 02, 2009 | Powerware 9120 UPS System

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Jan 17, 2009 | UPS Battery Backup Systems

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let the ups be turned on just charging the batteries, u can have the voltage but the batteries still not fully charged. good luck

Feb 27, 2007 | APC Smart-UPS 3000R3BX (SU3000R3BX135) UPS...

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