Ford Quality

[chriserx]

Out of curiosity, what battery are you using. Additionally, you report high voltage, have you tried testing the voltage disconnected from the truck? If you have an OBD reader check the LVB SoC %.

Context:
I have noticed that my truck goes to sleep when the LVB reaches ~85% as reported by the truck, maybe it's normal but I suspect it's a mismatch between the actual LVB SoC and what the truck thinks it is. I haven't had the will to disconnect the battery, charge to full and perform a reset to verify the problem, at least for now. I just got an OpenEVSE that let's me throttle the charging rate so I can ignore it with minimal fuss for now.

Edit: I forgot to circle back to it, I think there could be a mismatch with yours and it's putting modules to sleep.

Edit 2: Reading below my post, I forgot to mention why measuring with battery disconnected. So long as the DCDC is on the voltage reading you take is going to be inaccurate I've had readings between 12.5v and 15.0v. It's just better to take it out and test.

Sponsored

 

[Kansan]

Saying my 12v SoC is not accurate because your 12v is different is not helpful. My multimeter readings have confirmed my monitors accuracy multiple times.

It’s important to note that your battery will likely be a lower voltage because it’s older than my battery. I have a 2025 and I see you have a 2024.

Not trying to argue. Showing my battery data is just an example. AGM batteries are fully charged at 13.0v. There is system draw when the truck is off, and a big draw down for the first half hour. If your data is accurate you have a miracle truck.

 

[ClevelandBeemer]

Out of curiosity, what battery are you using. Additionally, you report high voltage, have you tried testing the voltage disconnected from the truck? If you have an OBD reader check the LVB SoC %.

Context:
I have noticed that my truck goes to sleep when the LVB reaches ~85% as reported by the truck, maybe it's normal but I suspect it's a mismatch between the actual LVB SoC and what the truck thinks it is. I haven't had the will to disconnect the battery, charge to full and perform a reset to verify the problem, at least for now. I just got an OpenEVSE that let's me throttle the charging rate so I can ignore it with minimal fuss for now.

It’s the original Motorcraft battery that came with the vehicle. I have metered the battery outside the truck and it still seems consistent with monitor readings.

Sponsored