Question about APC Back-UPS® CS 500 UPS System

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The battery backup side of the APC does not work how can I fix this?

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These UPS's have a built-in feature which does a self-test of the battery status when you first turn it on. At this time, it will click over to battery power as if the power is off. If it detects that the battery is bad, it won't turn on. A brutal, but effective method to let the user know that the battery is not good anymore. The manufacturers don't want you to continue using the battery outlets with the false premise that you are "safe" from a power outage.

However, batteries are easy to replace and, considering the cost of a new UPS is around $65, a new battery for $20 is a quick easy fix. Here's the replacement battery for that APC BK500 (or CS 500): http://www.batteryinternational.com/apc-backups-bk500-ups-battery-ups-batteries-f2.html

Posted on Feb 12, 2010

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How old is unit? UPS is a Battery that is charged from power outlet.It maintains voltage when computers are plug into it so fluctuations in current don't spike or wane.On a Power Failure the UPS supplies all the power by using the battery and an inverter.If your units batteries are not charging you need to replace them.In most cases it is not cost effective.Do some more test before you replace it.Good Luck.

Posted on Sep 08, 2009

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Posted on Jan 02, 2017

StorminP
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SOURCE: Test/Troubleshoot APC Battery Backups

All batteries, old or not really used hard should be replaced every three years. If not they turn to acid, or blister. If bllister does occur, throw the unit away, most likely the inverter will not last very long after the new batter is installed.

To know if your UPS is working right even if the battery might check out, use a volt meter to see if the battery is 12.5 to Volts. If you have a ceramic 10 ohm resister, you can alagator clip it across the + & - and it should hold the voltage above 12V DC, but if it sinks real quick below that...that battery is done.

To check to see if your UPS is OK. Plug it in use the volt meter to check the output voltage. Should be 115V-120V AC, unplug the plug from the wall socket and the readings should be hovering around 118V AC. That means your Inverter is still working. If the UPS dies, two things, go check the battery, or the inverter is toast-Throw away the Unit buy another. May I suggest that since CPU's are getting more advanced and faster and new computer power supplies are getting bigger go bigger on the UPS. Start out with a 1000VA or standardize on 1500VA. They really are not too expensive like they use to be.
check out my web page, should give you an idea.... http://www.storminprotection.com

Posted on Sep 06, 2009

jvpacoin
  • 91 Answers

SOURCE: To increase backup in apc symmentra ups

If you want to have 1 Hour back up time with your symmetra 16KVA UPS what you need is to get one additional Symmetra XR Battery frame and a battery pack same as the battery pack installed on your existing Symmetra frame. for the runtime issue you need to compute if how many percent the load that you have right now. From there you will know how many battery packs you need to obtain the 1 hour back up time.

Posted on Aug 14, 2009

JaxPlanet
  • 921 Answers

SOURCE: APC back-ups XS 800 battery backup : warning

Turn it off and unplug it from the wall.
Open it up and make sure that the red and black wires are connected.
If they are the battery needs to be replaced. They are only good for 2-3 years. If you are not comfortable with my instructions, call APC for free support. (800) 555-2725

Vote for this solution if it helps.

Posted on Aug 18, 2009

  • 2666 Answers

SOURCE: My APC BE500U keeps resetting

It certainly indictes a problem with the APC unit a replacement bettry may or may not solve the problem. Do you really need one as you have an anti surge protector?

Posted on Sep 18, 2009

  • 28 Answers

SOURCE: APC passes its self test but no backup

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

Posted on May 25, 2010

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Plug the battery backup into a working electrical outlet. If the battery backup turns on when the power button is pressed, then the problem may be that the previous electrical outlet is faulty. Proceed to step three. If the battery backup doesn't turn on, proceed to step two.
  • 2 Reset the circuit breaker on the battery backup. APC battery backups have a labeled circuit breaker button located on the unit near the phone line, fax line, USB, network and coaxial cable inputs. Press the button to reset the circuit breaker. Power on the battery backup by pressing the power button. If the battery backup powers on, proceed to step three. If the battery backup doesn't turn on, proceed to step six.

  • Read more: http://www.ehow.com/how_7266444_troubleshoot-apc-battery-backup.html#ixzz2lwOvPO75
  • 3 Determine if the battery backup is charged and providing battery power. With the battery backup on and plugged into a working electrical outlet, plug a computer monitor into one of the battery backup outlets labeled "battery backup plus surge protection" on the battery backup. (APC power supplies have some outlets that provide only surge protection while the other outlets provide surge protection plus battery backup.) Turn the monitor on. Unplug the battery backup power cord from the wall outlet. If the monitor remains on, the battery is holding a charge, supplying electrical power and the battery backup is working properly. If the monitor goes off, proceed to step four.
  • 4 Charge the battery. Plug the battery backup into an electrical outlet and allow the battery to charge for 16 hours. This will fully charge the battery.
  • 5 Test battery charge. Once the battery is fully charged, repeat step three. If the monitor stays on when power is interrupted to the battery backup, the issue is solved and the problem resulted from an incompletely charged battery. If the monitor turns off when power is interrupted, the battery within the battery backup is faulty and needs to be replaced.
  • 6 Replace the battery backup unit. The unit itself is faulty. If the battery backup is under warranty, contact APC to request a replacement.
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    The UPS in this office is out of order, message that appear on screen is 'UPS V OUT LIMITS' and 'Battery critical'


    follow this steps and fix it. God bless you
    Plug the battery backup into a working electrical outlet. If the battery backup turns on when the power button is pressed, then the problem may be that the previous electrical outlet is faulty. Proceed to step three. If the battery backup doesn't turn on, proceed to step two.
  • 2 Reset the circuit breaker on the battery backup. APC battery backups have a labeled circuit breaker button located on the unit near the phone line, fax line, USB, network and coaxial cable inputs. Press the button to reset the circuit breaker. Power on the battery backup by pressing the power button. If the battery backup powers on, proceed to step three. If the battery backup doesn't turn on, proceed to step six.

  • Read more: http://www.ehow.com/how_7266444_troubleshoot-apc-battery-backup.html#ixzz2lwOvPO75
  • 3 Determine if the battery backup is charged and providing battery power. With the battery backup on and plugged into a working electrical outlet, plug a computer monitor into one of the battery backup outlets labeled "battery backup plus surge protection" on the battery backup. (APC power supplies have some outlets that provide only surge protection while the other outlets provide surge protection plus battery backup.) Turn the monitor on. Unplug the battery backup power cord from the wall outlet. If the monitor remains on, the battery is holding a charge, supplying electrical power and the battery backup is working properly. If the monitor goes off, proceed to step four.
  • 4 Charge the battery. Plug the battery backup into an electrical outlet and allow the battery to charge for 16 hours. This will fully charge the battery.
  • 5 Test battery charge. Once the battery is fully charged, repeat step three. If the monitor stays on when power is interrupted to the battery backup, the issue is solved and the problem resulted from an incompletely charged battery. If the monitor turns off when power is interrupted, the battery within the battery backup is faulty and needs to be replaced.
  • 6 Replace the battery backup unit. The unit itself is faulty. If the battery backup is under warranty, contact APC to request a replacement.
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