System off to save battery

[Spiffy]

I had the truck on a smart charger for 72 hours. I have a Bluetooth monitor that showes a graph. 14.3v. On charger. Yes I reset the bms several ways. Fdrs, forscan, headlight/ break.

I'm starting to realize that no one knows if bms reset does the aux battery. Also I don't think anyone knows what battery is causing the system saver. It's for sure the main battery is not the culprit.

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[Spiffy]

Here is how my battery is now. I drove it all day. It's been sitting shut off for a few hours. I don't have remote start

 

[Spiffy]

Here is the main battery performance today.

Does anyone seen a problem. The constant high on left is where I had it on charger.

 

[Spiffy]

The lowest is the moment I turned off the truck.. it immediately dropped to 12.5v

The upward peak right at the very right is where I pressed the acc. key on enging off. That by the way is where my interior lights come on.
I turn off the acc and I get system saver message.

 

[Jerome10]

I think there may be a TSB for this issue. I wanna say part of the process is to determine if the 12V battery is bad, if so replace.

If it tests OK then I think they look into the charging system.

Funnily enough went searching for an older TSB (maybe from 2023 or early 2024).... there is a new one as of December 20, 2024. TSB 24-2442 " 3.5L PowerBoost - "12V Battery State Of Charge Low" Or "Charging System Service Soon" Message In The IPC And/Or "Remote Features Disabled To Preserve Battery" Message Displayed In FordPass "

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