Low Battery Voltage on RR AGM 12v Battery ?

[hand-filer]

My RR is at home in the garage. Jan 28th connected to trickle charger and went into sleep mode (two Weeks) Feb 11th. March 9th came out of sleep mode and is back on line. Truck has not been touched since Jan 28th. WTH
My 2020 Edge ST will sit all winter with trickle charger on it and never go into sleep mode. Looks like in 2020 there was not the two week requirement.

Weird! My 2019 Nautilus goes into Sleep Mode when it's on the maintenance charger.

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[dajo]

Weird! My 2019 Nautilus goes into Sleep Mode when it's on the maintenance charger.

It might have something to do with the battery disconnect installed for towing. Battery disconnect is not disconnected when in storage. Start stop is also deactivated completely with battery disconnect installed in connect or disconnect mode. Not a bad thing.