SMV2000CAI battery charger failure

[AntonioP]

I have several SMV2000CAI UPS units with the same issue:

The batteries voltage goes to 0V because the battery charger is not working.

Have you any idea about how to solve it?

Has someone the schematic for that UPS model?

Thanks in advance for your support.

[Teken]

The hardware and battery (RBC) is covered by a two year warranty. As such (IF) still under warranty you should contact APC Technical Support.

If the hardware is not under warranty provide the logs from UPSCAPO software: Event / Data

Verify the rear battery fuse is still in place and not blown. Also insure the rear breaker hasn’t tripped by pressing the button several times. If neither are a problem complete the action items below and provide the results.

Use a True RMS multimeter and measure the following AC / DC voltages and share the result here.

Input: Set the multimeter to AC volts and measure the input voltage from the wall outlet.

Output: Measure the output AC voltage coming out of the UPS outputs.

RBC Output: While the unit is powered up and running back probe the DC voltage going into the RBC (Replacement Battery Cartridge) either from the battery terminal or Anderson connector.

RBC Static: Disconnect the RBC from the main unit and measure the DC Voltage and document. Allow the RBC to sit disconnected from the system and measure the DC voltage for the next three days (72 hours) and report the voltage measurements.

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