F01 message (battery overload) every morning

[supercell_apc]

This was originally posted on APC forums on 3/23/2011

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Hello,

Up until yesterday everything was fine.

Yesterday: I hear a high, steady beep. I walk over to my PC. It is dead. The 1500 XS has the message "F01" on it and, again, it has a steady beep. I press the power button - it shuts off. I turn it back on. Battery light is empty and blinking. Start up my PC and all is fine for the next 24 hours. This morning around the same time it does the same thing. Is this some sort of battery test that runs every 24 hours? Has my battery reached a point where it no longer can support my 850 watt PC PSU, or is this some sort of power spike that is hitting every 24 hours starting yesterday? Nothing has been added to the UPS.

Any ideas? Any suggestions would be great!

Thank you in advance.

[cstuetz_apc · Accepted solution]

This was originally posted on APC forums on 6/7/2016

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Can you tell me what is the maximum load for this product?

I'm having the same problem and it says my current load is between 60 and 71 watts.

Thank you!

[BillP · Accepted solution]

This reply was originally posted by Bill on APC forums on 6/8/2016

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Rob,

If you have a XS1500 the maximum load is 865 watts. We recommend keeping the unit at or below 80% of maximum load or 692 watts.

How old is the battery? At the load you are running the UPS should not be overloaded.