Update postponed due to low battery

[WyldBlue]

I'm assuming the overnight software updates are using the 12 V battery. Does it not have a charging circuit off the main battery while the truck is in use? I can't seem to find any technical drawings. It's three years old which seems odd it would fail this soon. My truck is a daily driver.

Sponsored

 

[B177y]

I'm assuming the overnight software updates are using the 12 V battery. Does it not have a charging circuit off the main battery while the truck is in use? I can't seem to find any technical drawings. It's three years old which seems odd it would fail this soon. My truck is a daily driver.

Lots of threads about this issue.

Yes, updates need a fully charged or mostly charged 12 volt battery. I seem to remember 85% SOC or higher.

No, the DC to DC converter does not come on and charge the 12 volt during an update.

Tons of posts about 3 years being the time when everyone's 12 volt dies. This is pertinent for Lightning's, Mach-e's, and ICE F150's.

@chl will most likely post about how he hooks up a trickle charger through his charge port....

 

[chl]

Lots of threads about this issue.

Yes, updates need a fully charged or mostly charged 12 volt battery. I seem to remember 85% SOC or higher.

No, the DC to DC converter does not come on and charge the 12 volt during an update.

Tons of posts about 3 years being the time when everyone's 12 volt dies. This is pertinent for Lightning's, Mach-e's, and ICE F150's.

@chl will most likely post about how he hooks up a trickle charger through his charge port....

LOL...just trying to be helpful...
More and more of us doing something like that lately...
Sad that Ford hasn't fixed this problem.

Links to threads:

This post from the Mach-e forum goes into depth about these 12v AGM batteries:

https://www.macheforum.com/site/threads/how-to-recondition-service-your-12v-battery.11069/

And this one is about the different ways to charge up the battery to get OTAs:

https://www.macheforum.com/site/threads/how-to-get-failed-otas-to-install.29749/

Also several threads here about putting trickle chargers on the battery and how to make it easier by adding a trickle charger wire:

https://www.f150lightningforum.com/forum/threads/charging-12v-battery.16979/

 

[WyldBlue]

Appreciate the help, guys. Sorry to be redundant on this issue.

 

[Maquis]

If you still have your original 12V battery, it‘s probably ready for replacement.

 

[Zprime29]

If you still have your original 12V battery, it‘s probably ready for replacement.

I still have original 12v in mine. I keep waiting for consistent signs of low SOC on it but thus far it's still chugging along. I've got my jump starter charged and ready for when it finally gives up.

 

[Maquis]

I still have original 12v in mine. I keep waiting for consistent signs of low SOC on it but thus far it's still chugging along. I've got my jump starter charged and ready for when it finally gives up.

Yeah, they’re not all going to fail at the same point or with the same symptoms. It seems like once they hit 3 years, the failure rate starts going up. I still have my original and I just got an update last week, so it seems to be OK. I also keep a jump pack in the frunk.

 

[TaxmanHog]

My personal tolerance is 3 years on the risk vs reward of going longer until it dies at the least convenient time.

 

[Minh]

I'm assuming the overnight software updates are using the 12 V battery. Does it not have a charging circuit off the main battery while the truck is in use? I can't seem to find any technical drawings. It's three years old which seems odd it would fail this soon. My truck is a daily driver.

I had this message on the 1.4 blue cruise that was resend to everyone. After a few days failed attempt I was about to replace the battery. The same day I was browsing for one the truck update completed. Didn’t do anything different it just happened. A week or two later the charge port lock update completed with no issue.

 

[Adventureboy]

Try this:
Schedule your update at the tail end of your charging cycle. This will make sure your 12v is fully charged when the update starts. If it still fails, you might want to replace your 3-year-old battery or put a battery charger on it to get through the update.

 

[Sleazy-E]

Here's one for the 12V battery guru's. Software Update PT-25.13.12 "Charge Port Functionality & Cold Weather Performance" has been failing each night for a week or so. Looking at Car Scanner, the 12V hovered around 80-90% in the morning when I'd see the failure notice for low battery.

Based on a couple comments here I picked up the Noco Genius1 and used it to get it up to 100% before the update started. First screenshot is seconds before I manually started the update and the second is 2 hours later when I went back out to the truck to see it failed. Topped if off again to 100%, started the update again, waited outside and watched the countdown timer and then the "Preparing Update" screen was up for ~90 seconds before the failure notice popped up and then turned off.

The truck was built 11/23 and as far as I know (bought used), this is the original 12V. Thoughts?

 

[chl]

Here's one for the 12V battery guru's. Software Update PT-25.13.12 "Charge Port Functionality & Cold Weather Performance" has been failing each night for a week or so. Looking at Car Scanner, the 12V hovered around 80-90% in the morning when I'd see the failure notice for low battery.

Based on a couple comments here I picked up the Noco Genius1 and used it to get it up to 100% before the update started. First screenshot is seconds before I manually started the update and the second is 2 hours later when I went back out to the truck to see it failed. Topped if off again to 100%, started the update again, waited outside and watched the countdown timer and then the "Preparing Update" screen was up for ~90 seconds before the failure notice popped up and then turned off.

The truck was built 11/23 and as far as I know (bought used), this is the original 12V. Thoughts?

You may have hooked the NOCO up to the wrong negative post - it has to be downstream of the BMS sensor or else the system doesn't know the battery has been charged:

Also be sure to use the 12V AGM mode on the NOCO.

But there is a whole list of other ways to charge up the battery to get updates - charging the HVB from 70-80% overnight at about 32A worked for me before I had the battery maintainer.

If things are hooked up correctly and your battery still won't hold a charge, could be you need a new battery.

2-3 years seems to be about the time batteries not on a maintainer seem to go south.

Sponsored