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Monitoring the Votage in the battery of a RBC2 APC battery in a BP500UC

I purchased an APC BP500UC in 1999. I have recent installed the 3 battery in the unit. I used to click on Power Management (PM) and had a readout on the Desktop of the charge on the battery and a pointer that I could set to warn me when the battery is getting low.
I have the original CD-ROM used in the install Process but I haven't uninstalled the PM program and reinstalled. Is it possible to insert the CD-ROM in and reinstall over the existing program or must I go to Control Panel ..... Power Management ..... Add/Remove ......remove the program that is installed and reinstall using the CD-ROM?

Would that procedure put the capability to monitor the battery on a regular basis back in the PM Window on the Desktop. Need help Thanks Jack F Ray jfray11109@comcast.net

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No remove the old program first always. Then reinstall. Make sure you have device no plugged in.

Posted on Feb 13, 2008

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I have APC RS 600, 360W battery which is not working that means O/P voltage 230V is nill there is no Output supply . I checked the ckt but when switch on the ups it will start alarm and even i check the...


Hi Datta,

It seems that you have the wrong battery in that UPS. The replacement battery for that unit should be an RBC2 -or- a 12v 7.5ah battery ($28 delivered). The UPS will not work without the correct battery in place.

If you could provide me with the exact model number I may be able assist you further.

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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I get an alarm with continuos beep sound everytime I plug in the unit, even without load


Time to change the batteries. Open the UPS and get the battery type numbers and spec written on the batteries. Locate a local battery distributor and you can order batteries. APC uses industry batteries.

The batteries last an average of 2 to 3 years. They wear out inside. You can also order APC original batteries if you feel insecure about purchasing them from a battery dealer. APC will charge more for the batteries, but they will be original to the UPS type.

Jerry G.

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MY BK300C WOULD ONLY STAY ON FOR A SEC AFTER POWER OUTAGE


Looks like your battery is dead and needs to be replaced. You can buy the cheapest original replacement (with free postage paid recycling kit for your old battery) on buy.com ( search for: CWK2S6 ). You can also buy No-name cheap alternative on ebay. ( by searching for: APC RBC2 ).

Hope this helps!
Tashfeen A. Majid

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I need to know what the modular cable is that goes between the main unit and the batteries on a Matrix 5000. Is it simply a cross-over mini-RJ11 (handset connector) cable?


ccowl, APC has a great website. Have you tried it yet? The knowledge base they have on their products is huge. The cable you are speaking of may just be for monitoring battery voltage status, but that is only a guess. The interconnect cable could be a proprietary APC cable and only APC knows how it is wired "end to end" !!! 12fixlouie

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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.

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restart the ups by to turning off your ups and main source. and turn it on again. anybe the battery u purchase is deflected. change the new battery & test again. i suggest to replace other type of battery like neuton power, chloride powersafe as this type is much reliable and cost saving. the cost of the the problem if still occur it could the setting of the UPS that it to configue.. ask the vendor to check your ups

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1 Answer

Desk top APC UPS ES750 not communicating


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.

2) If the PC was powered on before the UPS, communication will not be achieved until you disconnect and reconnect the USB cable to the host. In this case, you need to disconnect and reconnect the USB cable to establish communication.

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.

If the issue persists, please visit the following link which lists few troubleshooting steps :

http://nam-en.apc.com/cgi-bin/nam_en.cfg/php/enduser/std_adp.php?p_sid=oXhRFGEh&p_lva=&p_faqid=2923

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Try going to the properties of the driver and select do not check or check every X mintues.

Try this thanks J

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yeppers...those APC units sometimes kick the monitoring software. sometimes you need to unhook the connection cables(like a reset) so that the firmware can 'unlock' which can cause that christmas tree effect on the panel lights.

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