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The 12 volt battery saga continues (Deep Sleep)

Mark1

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Why would you need a battery with higher cold cranking amps? The 12v battery does not get a high current drain since the hybrid does not have a starter motor.
Because it fairs better with the constant drain. The truck won't start with a dead 12v battery because it runs all necessary systems and accessories. You should be asking Ford that question not a buyer. Come on we aren't stupid.
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ZABSMAV

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Hmmmm......now we can expect a fix the SECOND quarter ....

...countdown .....
Ford just announced the recall of 125,000 F-150s and other similar 2017-2018 vehicles for brake problems. I guess if it took 7 to 8 years to finally fix those problems we might see a solution to this widespread deep sleep problem by 2030 or 2031, if we are lucky. Beginning to believe that the tag line from Ford is no longer "quality is job one" but is instead "quality is job none".
 

Mark1

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Ford just announced the recall of 125,000 F-150s and other similar 2017-2018 vehicles. I guess if it took 7 to 8 years to finally fix those problems we might see a solution to this widespread deep sleep problem by 2030 or 2031, if we are lucky. Beginning to believe that the tag line from Ford is no longer "quality is job one" but is instead "quality is job none".
Tarrifs won't save bad quality. Survival of the fittest usual prevails and they are at best, middle of the road mediocre.
 

Mark1

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My 2024 Lariat Hybrid went into deep sleep 3 out of the last 4 days. Sent an email to the Service Manager at my dealer and the reply is yet another kicking of the can down the road. There is yet another SSM. This is part of what was sent


The previously referenced SSM was superseded by one published today.




1744907380696-qs.jpg
Thanks for the info / updated info. I bet you this is a hardware fix.
 

Captpatti77

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Thanks for the info / updated info. I bet you this is a hardware fix.
Have you tried driving it for at least an hour or two several days it a row? Solved my issue at least for now. I found after several high speed 65-70 mph for 40 minutes several days in a row my issues haven’t popped up. Outside of the fact, now that it experienced a deep sleep shut down it isn’t giving me the same gas mileage.
 

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ZABSMAV

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Have you tried driving it for at least an hour or two several days it a row? Solved my issue at least for now. I found after several high speed 65-70 mph for 40 minutes several days in a row my issues haven’t popped up. Outside of the fact, now that it experienced a deep sleep shut down it isn’t giving me the same gas mileage.
How about a 300 mile trip one day and a return 300 mile trip two days later and an hour after returning getting deep sleep notification? Been there, done that. It is not going to be fixed until Ford's engineers redesign the basic charging circuit. No software fix is going to solve this. If it were that simple that would have already been accomplished.
 

HeyBales

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Have you tried driving it for at least an hour or two several days it a row? Solved my issue at least for now. I found after several high speed 65-70 mph for 40 minutes several days in a row my issues haven’t popped up. Outside of the fact, now that it experienced a deep sleep shut down it isn’t giving me the same gas mileage.
You'll have problems again.
You just made it over a hump to stop the effects, for now.
But the change you had shouldn't effect MPG, perhaps on paper a minor amount - but many more real life variables.

Here's what happened during your long drive.
This is what should happen in hours, but the truck system according to logs is actually minutes, and sadly even a tad shorter than this chart. So you got an extended float charge around 1A or less for a long time.

Ford Maverick The 12 volt battery saga continues (Deep Sleep) 1745607372443-k


A recent log of my truck's state of BMS tracking shows this.
Assuming the sensor is even accurate. These are Amp Hrs.
20 - Cumulative Charge Engine On
17 - Cumulative Discharge Ignition Off
4 - Cumulative Discharge in Sleep Mode (I've never received Fordpass notice of this, so must be a different sleep mode)

So even by their own math, accurate or not - this is always on the side of undercharged, never matches (20 vs 21). If this has any bearing on the charging strategy.
Now, somehow despite that I've risen from winter time abouts 50% SOC, to currently around 63%.

Ford Maverick The 12 volt battery saga continues (Deep Sleep) 1745607686079-yz
 

ZABSMAV

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You'll have problems again.
You just made it over a hump to stop the effects, for now.
But the change you had shouldn't effect MPG, perhaps on paper a minor amount - but many more real life variables.

Here's what happened during your long drive.
This is what should happen in hours, but the truck system according to logs is actually minutes, and sadly even a tad shorter than this chart. So you got an extended float charge around 1A or less for a long time.

1745607372443-kb.webp


A recent log of my truck's state of BMS tracking shows this.
Assuming the sensor is even accurate. These are Amp Hrs.
20 - Cumulative Charge Engine On
17 - Cumulative Discharge Ignition Off
4 - Cumulative Discharge in Sleep Mode (I've never received Fordpass notice of this, so must be a different sleep mode)

So even by their own math, accurate or not - this is always on the side of undercharged, never matches (20 vs 21). If this has any bearing on the charging strategy.
Now, somehow despite that I've risen from winter time abouts 50% SOC, to currently around 63%.

1745607686079-yz.webp
Thank you for the chart and real world findings. Ford has got to come up with a solution to recharge the battery quicker, even if it means redesigning the engine compartment to fit a belt driven alternator like should have been in there. We bought our Maverick hybrid specifically for short distance local trips of 10 miles or less to take advantage of the 42 to 50+ MPG in city driving. Was never told you would have a dead battery continually because the Maverick won't recharge the battery. We have two other vehicles and have never had a situation where the battery was destroyed by short trips. Ford needs to own up to this major flub up and fix it.
 

HeyBales

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Thank you for the chart and real world findings. Ford has got to come up with a solution to recharge the battery quicker, even if it means redesigning the engine compartment to fit a belt driven alternator like should have been in there. We bought our Maverick hybrid specifically for short distance local trips of 10 miles or less to take advantage of the 42 to 50+ MPG in city driving. Was never told you would have a dead battery continually because the Maverick won't recharge the battery. We have two other vehicles and have never had a situation where the battery was destroyed by short trips. Ford needs to own up to this major flub up and fix it.
The system controls exactly how many amps are going to just the battery for recharging, from the power that is coming from the DCDC conv, either from motors or the battery.

No need for alternator, as those are even PCM duty cycled to imitate that ability to only be used when needed for the amps desired. And for some systems that method doesn't work great either.
Some of it is smart - like don't enable during the startup and initial warmup, or on accelerations, to cause extra load to the system. Then kick it on higher, tapering off at some point. I've seen some in videos go by time, some by reading a sensor and current status.
Perhaps like the hybrid seems to be doing - tracking in and out amps.
Smarter yet to notice normal driving patterns - and base charging strategy on how often truck is actually driven.
Good grief - there's a table for transmission learning, can't they track average drive times on hybrid!

It would be interesting for anyone using scanner tool on EB to report what they see as amps going to battery from alternator, during a drive.
Forscan Lite makes it easy since it logs.
 

Captpatti77

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You'll have problems again.
You just made it over a hump to stop the effects, for now.
But the change you had shouldn't effect MPG, perhaps on paper a minor amount - but many more real life variables.

Here's what happened during your long drive.
This is what should happen in hours, but the truck system according to logs is actually minutes, and sadly even a tad shorter than this chart. So you got an extended float charge around 1A or less for a long time.

1745607372443-kb.jpg


A recent log of my truck's state of BMS tracking shows this.
Assuming the sensor is even accurate. These are Amp Hrs.
20 - Cumulative Charge Engine On
17 - Cumulative Discharge Ignition Off
4 - Cumulative Discharge in Sleep Mode (I've never received Fordpass notice of this, so must be a different sleep mode)

So even by their own math, accurate or not - this is always on the side of undercharged, never matches (20 vs 21). If this has any bearing on the charging strategy.
Now, somehow despite that I've risen from winter time abouts 50% SOC, to currently around 63%.

1745607686079-yz.jpg
Thank you for the education. Let’s just pray they solve the problem. I love this truck.
 
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HeyBales

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Had an interesting moment Sun night.
Slightly longer highway/city drive, by probably only 10 min.
Opened door after parking and off, and usually light and power point turn off immediately - has to be in power save mode over 6 months, when I last saw them remain on for some amount of time.
Have one of those USB adapters that shows Volts and Amps used by device plugged in.

But the number remained on adapter, light still on with door open.
Read 12.2 (after correction) I recall.
Wow - I've gained from my normal 11.8 or 11.9 - exciting!
Closed door - still glowing!

Then I woke up Mon morning - and thought, on shoot, what if that was a malfunctioning module, and it's been on all night and drained the battery!
Nope - it was fine. And back to normal 12.0 or below.
 

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Ford just announced the recall of 125,000 F-150s and other similar 2017-2018 vehicles for brake problems. I guess if it took 7 to 8 years to finally fix those problems we might see a solution to this widespread deep sleep problem by 2030 or 2031, if we are lucky. Beginning to believe that the tag line from Ford is no longer "quality is job one" but is instead "quality is job none".
2024, 2021, 2016, 2013, 2010, 2004, 1984, 1973, 1967. Those are the years of my many Fords.
Never any issues with any, let me repeat myself, No issues. The only recalls I’ve ever had were on my 2021 Bronco Sport. All fixed the first time at the dealer, all minor.
I can’t say that with my Toyota’s or Chevrolet’s.
I tortured all my Mopar’s and they did well.

I wonder if the bulk of the Ford Owners are happy as pigs in shit while the few bad issues seem to be in larger numbers just because most are talked about in this forum ?

Or I’m just lucky in life.

Just sayin.
 

joe1young

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Have a 2024 maverick hybrid.after a couple months I noticed I couldnt access the for app as it was in deep sleep mode If the truck had sat for a day. it to dealer they said bad battery,replaced battery,still have the issue.havent seen any recall on it,what gives
 

ZABSMAV

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I own a 23 and 25 hybrid lariat I replaced both of the batteries with AGM batteries for less than $150 each by myself. I Did the battery reset and haven’t had an issue since they clearly used an underpower battery in a hybrid that needs to call on the battery more than they figured you’ll solve all your problems by biting the bullet and tossing in some nice new batteries under your rear seat I waited over a year to do it on the first truck and I’m sad. I waited.
The problem isn't the battery. It's a poorly designed charging circuit. As it is currently designed it can't even properly recharge a lower capacity FLA battery, let alone a higher capacity AGM battery.
 

ZABSMAV

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Thanks for the info / updated info. I bet you this is a hardware fix.
Totally agree that it is NOT only a software update or it would have been done by now. I get the suspicion Ford is deathly afraid of the massive damage a huge recall of ALL hybrid Mavericks will do to their sales and bottom line. This will be the crap hitting the fan when it is announced. But they don't have much choice. This problem can't just be ignored, despite their efforts to down play it by changing the verbiage in the app notification to call it a "battery protection feature" rather than a deep sleep problem notification. Hey, Ford: This is NOT a feature!
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