Question about APC Matrix-UPS 5000 UPS System

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No battery communications

Inherited a four year old Matrix 5000 with a control unit and 5 battery units. Panel reads "no battery communications" but the UPS appears to be functioning for at least short power outages. Do we need new batteries?

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Hi,

You will get that message when the communications cable is not hooked up. It looks like a phone line and daisy chains from one battery to another and ends at the Matrix Control unit. If you have those installed and it still says no communication the system need service.

If you have a volt meter you can check the voltage from each battery at the plug. It should be 48 volts or more, usually on a fresh battery pack it will read 54.0+ volts.

Hope this helps,
Dean

Posted on Jan 04, 2009

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