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How to replace an apc battery back up battery

Need to replace a pair of APC battery back ups for a computer how do we do it?

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  • 411 Answers

Depend on model.
For 600VA and above
Go to APC site and check model of replacement battery.
Peel open the front plastic panel and unscrew 2 screws of metal panel.
Batteries can be slid out and replacement done when PC is online.
Only two wires to disconnect and connect.

Posted on Aug 20, 2014

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 8 Answers

SOURCE: apc ups flashes red light to replace battery, but battery is new

i think by replacing the battery has not been the solution to the problem

u need to check the battery charging voltage when turned ON with main electricity, if no voltage present from charger, there is no question of battery getting charged and also once the battery is down with charge it may not re charge hence the indicator and alarm.
recomended to nearest service centre

Posted on Sep 13, 2008

  • 25 Answers

SOURCE: APC BR800 Overload light with beeps

Your main control board is defective, you need a new unit.

Posted on Jul 11, 2009

jvpacoin
  • 91 Answers

SOURCE: I have a APC BX900R. i HAVE REPLACED THE

Your UPS is having an internal problem, it should be an inverter problem. if you know how to troubleshoot up to component level try to open the UPS and check the power mosfets. if not bring your UPS to the service center.

Posted on Aug 14, 2009

jvpacoin
  • 91 Answers

SOURCE: Overload light in APC RS 800 UPS

it seems that the inverter circuit of your UPS is dying. the solution here is you have to open up the UPS and check the inverter circuit. to make easier, check the power mosfet if its leaking.

Posted on Aug 14, 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."

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I found the following on APC's web-site for the APC Back-UPS, this will hopefully fix the problem:
You can also perform a manual runtime calibration. This could be done if you have changed your equipment load or battery. Stop the PowerChute software from running; disconnect the serial cable between the computer and UPS. Next unplug the UPS from the wall and let it run on battery until it reaches low battery. Once it reaches low battery plug it back into the wall outlet and let it recharge. Recharge time can take up to 4 hours.


from link: http://nam-en.apc.com/cgi-bin/nam_en.cfg/php/enduser/std_adp.php?p_faqid=2819&p_created=1048797826&p_sid=tANR-rxj&p_accessibility=0&p_redirect=&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9NCw0JnBfcHJvZHM9MCZwX2NhdHM9JnBfcHY9JnBfY3Y9JnBfc2VhcmNoX3R5cGU9YW5zd2Vycy5zZWFyY2hfbmwmcF9wYWdlPTEmcF9zZWFyY2hfdGV4dD1yZWNhbGlicmF0ZQ**&p_li=&p_topview=1


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Here is an answer I got from APC when one of my client got the same problem as you did:

The error message would pop up if the link between the computer and the UPS is weak. I cannot rule out a problem with the cable or the UPS. In order to confirm the same please try the following steps which might help :

1) Ensure that the USB cable is properly connected to the USB port of the computer.

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3) Some other software is polling your USB port for another device, thus causing the UPS software to temporarily lose communication with your UPS. If this is the case, you would need to shut down that application.

4) If you have any other USB devices connected to the PC, disconnect them and then try plugging in the cable.

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Try this thanks J

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