Replacing 12v battery

[jsus]

Apparently there is a recall now 23EO7 that replaces 232060.

23E07 does not replace any prior TSB. They are each unrelated issues. The reason why 23E07 is automatically closed out if either TSB has been claimed is that they all update the same software modules (ABS module, BECM, and SOBDM-C), but for 3 entirely different issues.

Emission recall 23E07 is just that - an emissions recall.

TSB 23-2059 addresses EGR issues (and has additional hardware troubleshooting as necessary)

TSB 23-2060 addresses the "grabby brakes" issues

See thread: https://www.mavericktruckclub.com/f...h02s-malfunction-fhev-engine-mavericks.33244/

Sponsored

 

[Scupking]

23E07 does not replace any prior TSB. They are each unrelated issues. The reason why 23E07 is automatically closed out if either TSB has been claimed is that they all update the same software modules (ABS module, BECM, and SOBDM-C), but for 3 entirely different issues.

Emission recall 23E07 is just that - an emissions recall.

TSB 23-2059 addresses EGR issues (and has additional hardware troubleshooting as necessary)

TSB 23-2060 addresses the "grabby brakes" issues

See thread: https://www.mavericktruckclub.com/f...h02s-malfunction-fhev-engine-mavericks.33244/

If you didn't have those TSBs preformed than 23E07 will update both of those issues. According to my service department 23EO7 supersedes those others.

 

[Ozarkbeard]

A modem sending location pings and other data could be a source of this draw, especially if the software doesn’t hibernate the hardware rapidly.

And it would probably be a worse drain if the cell signal was weak. It certainly does that on my mobile phone. I have to keep it on Wi-Fi only mode in my house, due to weak/no cell signal. If not, it drains the battery very fast. When it can't get a response when pinging the tower, it increases the transmitter power.

 

[hdave]

Has ford fixed this on newer M23 models?

 

[RockHoundTX]

Has ford fixed this on newer M23 models?

My Hybrid was built on July 30th, 2023. As noted above, I seem to see about .1V loss each day. I have turned off pretty much everything you can possibly turn off (or at least I think I have). At some point once I have a baseline I will turn the AT&T modem back on to see what difference it makes. The question I have for Ford ( @Ford Motor Company ) is whether .1V - .2V loss each day is viewed as acceptable by the Ford Engineers (since this is about 4x the parasitic load of most other vehicles). The lowest voltage I have measured on my battery in the last 2 weeks is 12.27V which is roughly 65% charge. Compare that to my 4 year old battery in my Honda Civic that has not been driven in the last 4 weeks and is still at 12.52V (89% charge).

As GPSMAN noted, the BMS (battery management system) seems to try and keep the 12V battery at roughly 60%-80% charge. If correct, this is a really stupid decision by Ford since lead acid batteries are better off at 90%+ charge. The testing that myself, GPSMAN, and others are doing is to try and figure out what are the parameters of the 12V battery and BMS and then try to determine what can be done about it by end-users (maybe there is something that can be changed via ODBII/Forscan?).

 

[Montauk]

Has ford fixed this on newer M23 models?

I have a feeling a crappy 10w dashboard solar panel trickle charger may be a short term answer.

Whatever the parasitic drain is, whether unintentional, intentional, necessary, or coding oversight, the 12v batteries are draining…. While ironically situated inches from a 420v hybrid battery. Having a better 12v battery only hedges against the same problem.


The Prius 12v battery is tiny & is plenty, but I have a feeling Toyota had this sorted out generations ago.

 

[GPSMan]

My Hybrid was built on July 30th, 2023. As noted above, I seem to see about .1V loss each day. I have turned off pretty much everything you can possibly turn off (or at least I think I have). At some point once I have a baseline I will turn the AT&T modem back on to see what difference it makes. The question I have for Ford ( @Ford Motor Company ) is whether .1V - .2V loss each day is viewed as acceptable by the Ford Engineers (since this is about 4x the parasitic load of most other vehicles). The lowest voltage I have measured on my battery in the last 2 weeks is 12.27V which is roughly 65% charge. Compare that to my 4 year old battery in my Honda Civic that has not been driven in the last 4 weeks and is still at 12.52V (89% charge).

As GPSMAN noted, the BMS (battery management system) seems to try and keep the 12V battery at roughly 60%-80% charge. If correct, this is a really stupid decision by Ford since lead acid batteries are better off at 90%+ charge. The testing that myself, GPSMAN, and others are doing is to try and figure out what are the parameters of the 12V battery and BMS and then try to determine what can be done about it by end-users (maybe there is something that can be changed via ODBII/Forscan?).

After driving it 1.5 to 2 hours a day on a less than 1 year old battery.

Cheap meter, but C'mon this can't be OK.

$250 "meter" shown below:

I also find voltage is lower after running through the dash and OBDII data cable.

I verified with the ScanGauge manufacturer, they are measuring the voltage directly at the device, not "reporting" digital data from the truck.

The 7 amp draw? Dome lights from door being open and whatever electronics were active at this time.

 

[GPSMan]

To Everyone:

Should I disconnect the 12 v battery after the drive home Friday night and let it sit until Sunday night and see if there is any self-discharge in 48 hours?

Will that identify if it is a battery defect (easy to solve) or truck problem (more difficult to solve)?

What do you think?

 

[RockHoundTX]

Loved it when Harbor Freight used to give the Cen-Tech multi-meters away for free ;-) Pretty sure I have had probably at least 20 of those over the years. Only had one that was truly "off" (by about .2V). All the rest were reasonably accurate and within about +/- .03V of each other. Only reason I ultimately dropped $100 on the Klein was I needed the additional features to track down some gremlins in my F350 (ended up being a fried ECM due to oil pressure sensor that shorted out).

For those that don't have the super fancy ODBII scanner that GPSMan has, I highly suggest the TopDon AB101 Battery tester. You can get them for about $30 on Amazon. Probably one of the most helpful auto tools I have and has paid for itself 10X over. I have saved neighbours and family hundreds of dollars by being able to check their batteries. In about 80% of the cases where someone said "I think I need a new battery" the State of Health was 75%+ and they just needed a charge (and figure out what was draining the battery). In other cases the battery was bad and checking it likely prevented a dead battery/tow situation.

 

[RockHoundTX]

To Everyone:

Should I disconnect the 12 v battery after the drive home Friday night and let it sit until Sunday night and see if there is any self-discharge in 48 hours?

Will that identify if it is a battery defect (easy to solve) or truck problem (more difficult to solve)?

What do you think?

Potentially worth it but make sure you are not measuring surface charge. You need to wait roughly 6 hours from the time you unplug the battery before you take the initial voltage reading. If not, you will likely get a false positive since the surface charge may be anywhere from .03V to .1V depending on the speed of the charge just prior to turning off the vehicle. Also make sure the cabin temperature is the same when you do the initial voltage test and when you do the final test before you reconnect the battery.

 

[GPSMan]

Potentially worth it but make sure you are not measuring surface charge. You need to wait roughly 6 hours from the time you unplug the battery before you take the initial voltage reading. If not, you will likely get a false positive since the surface charge may be anywhere from .03V to .1V depending on the speed of the charge just prior to turning off the vehicle. Also make sure the cabin temperature is the same when you do the initial voltage test and when you do the final test before you reconnect the battery.

What about testing it Friday Night with a 5 amp load for just long enough to get a reading, then test Sunday with a 5 amp load just long enough (5 seconds) to get a reading?

 

[GPSMan]

I am starting to tire of all this.
While commuting I can afford to drive until it dies. Just can't afford to have it die on long trips.

 

[Gullzway]

If you didn't have those TSBs preformed than 23E07 will update both of those issues. According to my service department 23EO7 supersedes those others.

Having the wiring harness CSP done soon, hopefully. Going to ask them to do 23EO7 as well.

Does this remove any changes I have made using Forscan, specifically adding Traffic Sign Recognition?

 

[Gullzway]

To Everyone:

Should I disconnect the 12 v battery after the drive home Friday night and let it sit until Sunday night and see if there is any self-discharge in 48 hours?

Will that identify if it is a battery defect (easy to solve) or truck problem (more difficult to solve)?

What do you think?

Yes. Try it.
I replaced my 12v with a Duralast Gold a month ago. So far no Deep Sleep issues.

However, I still have my original battery sitting in my garage. I just checked it and it is at 12.35v. Haven't charged it in over 3 weeks. So there was obviously some draw on my battery, dropping it to 12.2v and into deep sleep.

Maybe this TSB will fix that.

 

[BlueSpec1]

Some of my battery readings from BM2 battery monitors.

Maverick ECO BAGM48H6760 Battery, afternoon drive
Sep 06/2023 15:11 12.62V
Sep 06/2023 15:13 12.62V
Sep 06/2023 15:15 12.63V
Sep 06/2023 15:17 12.62V
Sep 06/2023 15:19 12.32V
Sep 06/2023 15:21 14.00V
Sep 06/2023 15:23 13.97V
Sep 06/2023 15:25 14.03V
Sep 06/2023 15:27 14.00V
Sep 06/2023 15:29 13.98V
Sep 06/2023 15:31 12.84V
Sep 06/2023 15:33 14.01V
Sep 06/2023 15:35 13.99V
Sep 06/2023 15:37 13.98V
Sep 06/2023 15:39 13.96V
Sep 06/2023 15:41 13.92V
Sep 06/2023 15:43 12.87V
Sep 06/2023 15:45 12.78V
Sep 06/2023 15:47 12.79V
Sep 06/2023 15:49 12.81V
Sep 06/2023 15:51 12.81V
Sep 06/2023 15:53 12.81V
Sep 06/2023 15:55 12.82V
Sep 06/2023 15:57 12.82V
Sep 06/2023 15:59 12.82V
Sep 06/2023 16:01 12.81V
Sep 06/2023 16:03 12.81V
Sep 06/2023 16:05 12.81V
Sep 06/2023 16:07 12.81V
Sep 06/2023 16:09 12.80V
Sep 06/2023 16:11 12.81V
Sep 06/2023 16:13 12.80V
Sep 06/2023 16:15 12.78V
Sep 06/2023 16:17 12.81V
Sep 06/2023 16:19 12.80V
Sep 06/2023 16:21 12.80V
Sep 06/2023 16:23 12.81V
Sep 06/2023 16:25 12.79V
Sep 06/2023 16:27 12.79V
Sep 06/2023 16:29 12.80V
Sep 06/2023 16:31 12.79V
Sep 06/2023 16:33 12.79V
Sep 06/2023 16:35 12.79V
Sep 06/2023 16:37 12.80V
Sep 06/2023 16:39 12.79V
Sep 06/2023 16:41 12.79V
Sep 06/2023 16:43 12.79V
Sep 06/2023 16:45 12.79V
Sep 06/2023 16:47 12.79V
Sep 06/2023 16:49 12.79V
Sep 06/2023 16:51 12.79V
Sep 06/2023 16:53 12.79V
Sep 06/2023 16:55 12.79V
Sep 06/2023 16:57 12.79V
Sep 06/2023 16:59 12.79V
Sep 06/2023 17:01 12.79V
Sep 06/2023 17:03 12.79V
Sep 06/2023 17:05 12.79V
Sep 06/2023 17:07 12.79V
Sep 06/2023 17:09 12.79V
Sep 06/2023 17:11 12.79V
Sep 06/2023 17:13 12.79V
Sep 06/2023 17:15 12.79V
Sep 06/2023 17:17 12.78V
Sep 06/2023 17:19 12.79V
Sep 06/2023 17:21 12.79V
Sep 06/2023 17:23 12.78V
Sep 06/2023 17:25 12.79V
Sep 06/2023 17:27 12.78V
Sep 06/2023 17:29 12.78V
Sep 06/2023 17:31 12.78V
Sep 06/2023 17:33 12.78V
Sep 06/2023 17:35 12.79V
Sep 06/2023 17:37 12.78V
Sep 06/2023 17:39 12.78V
Sep 06/2023 17:41 12.78V
Sep 06/2023 17:43 12.65V
Sep 06/2023 17:45 12.65V
Sep 06/2023 17:47 12.65V
Sep 06/2023 17:49 12.65V
Sep 06/2023 17:51 12.64V
Sep 06/2023 17:53 12.64V
Sep 06/2023 17:55 12.64V
Sep 06/2023 17:57 12.63V
Sep 06/2023 17:59 12.64V
Sep 06/2023 18:01 12.63V
Sep 06/2023 18:03 12.64V
Sep 06/2023 18:05 12.64V
Sep 06/2023 18:07 12.65V
Sep 06/2023 18:09 12.64V
Sep 06/2023 18:11 12.65V
Sep 06/2023 18:13 12.64V
Sep 06/2023 18:15 12.64V
Sep 06/2023 18:17 12.64V
Sep 06/2023 18:19 12.64V
Sep 06/2023 18:21 12.64V
Sep 06/2023 18:23 12.65V
Sep 06/2023 18:25 12.65V
Sep 06/2023 18:27 12.64V
Sep 06/2023 18:29 12.64V
Sep 06/2023 18:31 12.65V
Sep 06/2023 18:33 12.64V
Sep 06/2023 18:35 12.64V
Sep 06/2023 18:37 12.64V
Sep 06/2023 18:39 12.65V
Sep 06/2023 18:41 12.63V
Sep 06/2023 18:43 12.64V
Sep 06/2023 18:45 12.64V
Sep 06/2023 18:47 12.64V
Sep 06/2023 18:49 12.64V
Sep 06/2023 18:51 12.64V
Sep 06/2023 18:53 12.63V
Sep 06/2023 18:55 12.65V
Sep 06/2023 18:57 12.63V
Sep 06/2023 18:59 12.63V
Sep 06/2023 19:01 12.63V

BXT99RT4-A Battery from my Escape (like Maverick Hybrids have) sitting on garage floor with only a BM2 battery monitor connected:
12.61V Sep 01/2023 12:01
12.60V Sep 02/2023 12:01
12.60V Sep 03/2023 12:01
12.60V Sep 04/2023 12:01
12.60V Sep 05/2023 12:01
12.60V Sep 06/2023 12:01

Escape Plug in Hybrid BAGM48H6760 battery readings parked in garage, not driven
Charged on 8-31
12.79V Sep 01/2023 12:01
12.75V Sep 02/2023 12:01
12.73V Sep 03/2023 12:01
12.71V Sep 04/2023 12:01
12.68V Sep 05/2023 12:01
12.66V Sep 06/2023 12:01

Sponsored