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BE600M1 had overload shutdown out of nowhere
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Posted: 2026-05-1109:50 AM
BE600M1 had overload shutdown out of nowhere
My battery backup had an "Overload Shutdown", where the power LED was off and it made a constant long beep noise. It happened out of nowhere, and the battery backup had been running fine for a while. The only thing that was plugged into it was my NAS, so I'm wondering how the battery backup even had an "Overload Shutdown" in the first place.
The battery backup is BE600M1, and the NAS is a Synology NAS DS923+.
I read online that the long beep on battery backups means the wattage of the devices connected to the NAS exceeded the capacity of the battery backup, but that doesn't make sense, because the only device I have plugged into the battery backup uses less watts than the battery backup uses.
The DS923+ has an input power of 100-240V, 50-60 Hz, and maximum power consumption is 37.91 W. The Battery Backup is 600VA/330W, which means it supports more volts and watts than the one device I had plugged into it.
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Posted: 2026-05-1201:38 AM
The over load shutdown is a misnomer as it really indicates the RBC is draining and low in capacity and can no longer sustain proper operations at the current rate of depletion.
The over load shutdown is also an early indicator the RBC is nearing or end of life. The RBC is designed to provide 2-5 years of service based on usage, temperature, and environmental conditions.
Its rated to provide 260 cycles based on the same caveats as listed above.
Provide the serial number, battery installation date, RBC production date, and event / data logs for a more definitive answer.