Question about APC BE500U ES 500 USB BACK-UPS 500VA/300W 120V (NEWITEM13161417) UPS System

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APC BACK-UPS ES 500VA fails to provide back up during power failure

APC BACK-UPS ES 500VA does not provide back up during power failure.

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Get APC Powerchute Personal Edition for free and run it. If it says your battery isnt charged, check its voltage disconnected. Charge it with a car battery charger and see if its still a good battery. If not , replace it. If the battery is good, then check the charging voltage. Should be about 14 volts. if not, check the small transformer on the main board. Should be 120 in and 17 to 18 out. 4 diodes in a bridge for charge. The input to the transf has small fuse into it alone.

Posted on Jan 11, 2013

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Posted on Jan 02, 2017

  • 33 Answers

SOURCE: UPS Switching off while working

Hi kumaraswamy5,
it seems that either the UPS is connected to an outled which isn't grounded properly or the battery inside of the UPS needs a replacement.
On APC's website you can find the compatible batteries for your device and where to order them. Replacing the batteries is very easy so don't be afraid of that!
Greetings from Germany,
noris017
PS: Please don't forget to rate this advice after you've tested it out! Thanks in advance and have a nice day!

Posted on Feb 25, 2009

jvpacoin
  • 91 Answers

SOURCE: apc ups 650va no power when connctd to ac/bt wd power in on batry

Check the relay Circuit. the relay switch must be faulty

Posted on Aug 14, 2009

StorminP
  • 64 Answers

SOURCE: APC UPS issues

It is a faulty Neutral or Ground.

Most likely the Neutral will be the issue. That means the subpanel or the main panel needs to be serviced by an Electrican.

Posted on Sep 08, 2009

  • 19 Answers

SOURCE: APC Back-UPS ES 500: green light flashes&continuous warning tone

On this unit, the likely culprit is the battery and that it needs to be replaced.

With that, you may want to think about the pros and cons of replacement versus buying an entirely new unit.

This unit is a relatively low end ups and the surge supression uses MOVs that wear out with repeated absorption of energetic spikes. That's why the better (and higher cost) UPSs and surge suppressors don't use them. They're not really that good anyway due to their relatively high transient impedance. The better equipment uses a "transorb" -- basically a back-to-back high voltage zener diode optimized for low breakover impedance and high instantaneous power capability. Unless the transient exceeds the design parameters of the circuit, these do not wear out and do not degrade. That being said, I will assume that you would likely replace this unit with a similar one.
The flashing may not be the battery at all and may be the charging circuitry, thus your new battery may not live very long (half the life that you would expect.

Many batteries out there are refurbs and have issues as all used parts do.

If you contact APC, they will likely give you a 35% discount on purchasing a new product.

The difference in price in the battery replacement vs. ups replacement at this level may only be a few dollars more.

I promise that I am not a UPS salesman, I just deal with many on a daily basis; therefore I am giving my two cents to try to thelp you avoid problems a year from now.

Posted on Dec 30, 2009

Testimonial: "Outstanding answer with right amount of detail. I swapped battery with identical APC UPS that I have and vfd that battery was cause of warning tone."

  • 28 Answers

SOURCE: APC Back-UPS ES 350 - when powered on has a

A blinking green light is likely an indication that the internal battery is nearing the end of its usable life cycle. If it's over 3 years old this is likely the case. To test, plug something in to the battery outlets and pull the plug of the UPS from the wall. If you get a short runtime (or none at all) it's the battery. Batteries are under $20 and can be found here: http://www.batteryinternational.com/apc-backups-es-be350u-ups-battery-ups-batteries-f1.html

Posted on Feb 12, 2010

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1 Answer

My apc back ups es 650 has a continous chirp what doe that mean?


the chirp means a power event has occurred and the unit needs reset to continue operation , power events can be a few things ( to large a current was applied as a load to it , the power stayed off till battery failed and it had to charge it back up when power comes back on )

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APC UPS ES 500 series continuous beep sound and flashing green light


Hi Lasantha,

Check the battery in your UPS - it's most likely going bad and you will need to replace it.

If you need UPS, Surge, or Power Related help contact Daniel @ Power & Systems Innovations 800.260.2259 or go to our website: http://psihq.com/
** If this helped - Give it a Thumbs Up :) **

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My apc up es 500 is not turning on please help.. i havent used it for 1 year


You may have a battery problem.
Re-chargeable batteries require continual use and do not work after a long period on non use.

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1 Answer

Apc ups not powering on


hi,
check the battery voltage. if it is bellow 11v this problem can occur. apc ups starts from its battery and then only it gos to mains supply. if ur battery is deeply discharged it will not power on. in this case u have to pullout the battery from ups and charge it using battery charger. if not works replace the battery.

Dec 17, 2010 | APC BE500U ES 500 USB BACK-UPS 500VA/300W...

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My Apc Back UPS Es 500 did not charge and then there is power when I turn on the switch. How could I repair this problem?


Good Day! Try changing the battery. please visit apc's service center for battery replacement. it will only take 3-5 working days. once done, your ups will be as good as new.

Nov 09, 2010 | APC BE500U ES 500 USB BACK-UPS 500VA/300W...

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More than likely it is the battery. These units simply test the voltage during the self test, and, although not typical, the battery voltage could be good without a load, but fail with a load. 3 years is generally the life span of SLA batteries. Replacement batteries are fairly inexpensive and can be found at: http://batteryinternational.com/ups-batteries-apc-batteries.html

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Disconnect the battery(s) from inside. The backup batteries are still working...

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Clicking


that's a sure sign that you are in low battery condition, and the inverter is approaching shutdown. You may need to either deep recharge the batteries, with NO load, or replace them completely.

Got Backup?

Feb 10, 2008 | APC BE500U ES 500 USB BACK-UPS 500VA/300W...

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