Low Battery - Can't or Won't do OTA Update?? at 90%?

[Rjpear]

Hi Folks.. a New (for me) OTA popped up the other day. I attempted to have it done overnight as I sat fully charged, plugged in at 90% but in the morning I get the message that the OTA failed due to low battery. I attempted to force it under the same conductions this afternoon but I get the same error. It is 1 deg F out but I think that at 90% and being plugged in should be sufficient. Anyone have such an issue?
Thanks...

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[chriserx]

Hi Folks.. a New (for me) OTA popped up the other day. I attempted to have it done overnight as I sat fully charged, plugged in at 90% but in the morning I get the message that the OTA failed due to low battery. I attempted to force it under the same conductions this afternoon but I get the same error. It is 1 deg F out but I think that at 90% and being plugged in should be sufficient. Anyone have such an issue?
Thanks...

Annoyingly common, updates rely on the 12v battery and not the HVB. Charge the 12v by whatever means are at your disposal and try again.

 

[bmwhitetx]

Since you have a 23 I'm guessing the OTA is this one. Lots of folks with your issue (including me on the '22 version of the OTA). We eventually get it to install by charging the 12V. Those threads have lots of advice on how to do so.

 

[Lytning]

Hi Folks.. a New (for me) OTA popped up the other day. I attempted to have it done overnight as I sat fully charged, plugged in at 90% but in the morning I get the message that the OTA failed due to low battery. I attempted to force it under the same conductions this afternoon but I get the same error. It is 1 deg F out but I think that at 90% and being plugged in should be sufficient. Anyone have such an issue?
Thanks...

Was the OTA update BCM-24.5.1 Convenient Frunk Closing?

 

[JimSmithRun1952]

I just dealt with an OTA update this weekend. On friday using my OBD scanner it read my vehicle battery as 14 V prior to the scheduled update that night at 1AM. I figured that voltage should be good enough. However my OTA failed. So the next afternoon, I drove around (mostly freeway) for about 60 minutes and checked my OBD Scanner and it read my battery voltage as was 15.1 V. I then immediately tried the update NOW option on the inside cab screen and it updated.

This same thing happened to me last year where I thought I had enough juice in my battery but the OTA failed the first time. I called the ford help line and somehow they were able to remotely read my battery level. The said I probably didn't have enough juice in my battery and suggested to drive around for 30 minutes. So just to make sure, I drove 60 mins on the freeway. Next night my scheduled update completed. These OTA's appear to be pretty sensitive to vehicle battery levels.

 

[chriserx]

I just dealt with an OTA update this weekend. On friday using my OBD scanner it read my vehicle battery as 14 V prior to the scheduled update that night at 1AM. I figured that voltage should be good enough. However my OTA failed. So the next afternoon, I drove around (mostly freeway) for about 60 minutes and checked my OBD Scanner and it read my battery voltage as was 15.1 V. I then immediately tried the update NOW option on the inside cab screen and it updated.

This same thing happened to me last year where I thought I had enough juice in my battery and it the OTA failed the first time. I called the ford help line and somehow they were able to remotely read my battery level. The said I probably didn't have enough juice in my battery and suggested to drive around for 30 minutes. So just to make sure, I drove 60 mins on the freeway. Next night my scheduled update completed. These OTA's appear to be pretty sensitive to vehicle battery levels.

With a voltage reading of 15.1, that almost certainly means the DCDC was active, and assuming the truck uses the temperature to adjust charging voltage, that it was 40F outside. I'd like to know if that last half is true for you, or if it's always that high of a voltage.

 

[PJnc284]

Guessing they checked while the truck was on or actively charging. Resting voltage certainly wouldn't be that high.

 

[JimSmithRun1952]

With a voltage reading of 15.1, that almost certainly means the DCDC was active, and assuming the truck uses the temperature to adjust charging voltage, that it was 40F outside. I'd like to know if that last half is true for you, or if it's always that high of a voltage.

I live in Red Bluff CA and the air temperature when I did the update at 1:30 PM on Saturday was 60-62 degrees. It is not unusual for me to get a 15.1 V reading on my OBD scanner after I have been driving the truck around. I have not been driving it, it is much it's closer to 14. I generally do not drive the truck that much as evidenced that I only have 15K on my 2023 XLT that I picked up on Dec 1 2023.

I'm not sure what you mean by ".. the DCDC was certainly active" but my OBD scanner only works when the truck is turned on.

 

[chriserx]

I live in Red Bluff CA and the air temperature when I did the update at 1:30 PM on Saturday was 60-62 degrees. It is not unusual for me to get a 15.1 V reading on my OBD scanner after I have been driving the truck around. I have not been driving it, it is much it's closer to 14. I generally do not drive the truck that much as evidenced that I only have 15K on my 2023 XLT that I picked up on Dec 1 2023.

I'm not sure what you mean by ".. the DCDC was certainly active" but my OBD scanner only works when the truck is turned on.

What I mean by it is that since you are using an OBD scanner to read voltage, unless the truck is in ACC mode (and I don't even know if it's accessible in ACC), the DCDC converter is active so you aren't really measuring the battery voltage, but the converter voltage. I'm not certain but isn't 15.1v supposed to be too high for an AGM, at least in fair weather?

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