SMC1500C shows battery replace date prior to manufacture date?

[scottor]

Hi all,

Not sure if this is a common issue, but I decided to try SmartConnect for the first time and hooked a few already-installed SMC1X00C series UPSes to the network, signed up for an account, etc.

For one of the UPSes (SMC1500C), a warning was shown on the dashboard saying the battery was due for replacement, with a replacement date of 2019-01-30.  Except, the UPS was manufactured on 2023-01-23.  And before today, I hadn't changed any of the settings nor connected it to a network.  It was purchased new from a reputable source. (Screenshot attached.)

All I'm trying to get a handle on is if this is a common gotcha with this series of UPS.  Is there an RTC battery on board (the main battery is kept disconnected during shipping, no)?  Or is this a known firmware/initialization bug?  (It reports running v 04.1 (1018) [Latest].) 

I figure the UPS has to have internal timekeeping as another one gave me an appropriate L.01 alarm just under 3 years post-mfr, despite having been warehoused for a while before I got it.

What's weirder still is that there's no error/warning on the UPS itself.  No L.02 message, no lights.

I know I can reset the date manually, so more curious about the cause than it being a showstopper.

Thanks,

Scott

[Teken]

The replace battery message is based on the battery installation date. It’s simply an internal counter written to memory.

There is no RTC . . .

What is the serial number of this UPS as that is the true manufacturer date. On battery cartridge / shell of the battery is also a production date what is it?

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