Question about Powerware 9120 UPS System

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9120 battery failure

My ups 9120 shown battery failure. So far after tested the batteries, the voltage shown normal value. What causes this error?

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  • Anonymous Jun 16, 2008

    My UPS 9120 says battery disconnected? Any suggestions??

  • anke Jun 20, 2008

    i replaced all the batteries. No fix. Still reads battery disconnected

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Sometimes the battery tester is not enough to check the battery. battery also prone to tear and wear.because of charging ang discharging. replace the battery

Posted on Feb 05, 2008

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BAT DISCONNECTED

Posted on Nov 26, 2013

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4 Answers

My ups has failured only giving an alarm indicating that batdisconnected


Check the connections on the batteries. One or more may be loose or corroded. Also check the fuse for the batteries. It may have blown.

Sep 25, 2014 | Powerware 9120 UPS System

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BAT DISCONNECTED ERROR DEPLAY


It's probably a failed battery going open circuit or DC voltage is below limit on a cell

Nov 26, 2013 | Powerware 9120 UPS System

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I have a powerware 9120 (6kva) and about 1 week i replaced all 20 batteries after the UPS failed. but its displaying battery disconnected when i try to power it. i cant seem to figure the problem. i tried...


Did your UPS display "Battery disconnected" or did it display "Battery Failure"? If it was "Battery Failure", for some reason the Powerware 9120 will take almost 18 hours after plugging in to power after battery replacement to correct the Battery Failure indication. Charger has to charge up the batteries, followed by an automatic battery test by the UPS. If the indication was "Battery Disconnected", you will need to check the internal fuses to see if they are blown. If the UPS keeps blowing fuses, it will require a board repair.

Jun 12, 2011 | Powerware 9120 UPS System

1 Answer

Alarm and battery failure ; Powerware 9102


open the screws and disconnect the battery look the voltage written on it and AH (ampere/hour) e.g.12v & 7ah and purchase same value battery and connect look carefully the +ve &-ve polarity of battery and connect in proper way

Feb 24, 2010 | Powerware 9120 UPS System

2 Answers

Powerware 9120 BUS Unbalanced error display


I've had this same issue what it boils down to is that the Power IN is not being distributed properly across the Power Outlets.

Step 1. unplug everything from the unit and power the ups down. If the alarm clears itself the UPS is mostly likely fine. if it doesn't not clear send it in for repair

Step 2. If step 1 cleared the alarm try distributing the decives across the outlets differently.

There are two inverters so two output if everything is plugged into one side (ie a power bar with 10 things plugged into it) and nothing on the other side this could cause the alarm.

hope this helps

Dec 11, 2009 | UPS Battery Backup Systems

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.

chart_abm.jpg
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

1 Answer

I have a Powerware 9120 2000 UPS battery failure message


Hi,

After you replaced the batteries did you perform a manual battery test?

If not do so.

Regards
Alan Hood
ami-man
UK

Mar 03, 2009 | Powerware 9120 UPS System

2 Answers

Battery Failure


Hi

if the battery is bad you better to replace a new one!

Thanks!

Sep 23, 2008 | Powerware 9120 UPS System

4 Answers

Pw9120-6000


1st, the 9120 is a 700, 1000, 1500, 2000, 3000, 5000 or 6000 Va
if it is a 6000 Va that voltage sounds ok, and the ups as no problem, each battery will be around 12,75 Volts, it will be higher and the charging circle ends.

Jun 27, 2008 | Powerware 9120 UPS System

1 Answer

9120 Battery Failure


sounds like inverter is unhappy(causing the input fuse to blow. maybe, just maybe, this Powerware 9120 has given up the ghost? The inverter can short for a variety of reasons. Try to take out the battery completely, and run it as just a power conditioner. If that works, then you have an unhappy inverter in there.

Feb 05, 2008 | Powerware 9120 UPS System

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