Hybrid 12V Battery Charging

[EONR24]

Battery Target SOC is in BdyCM in Forscan for 2.5L

Forscan: Configuration and Programming > BdyCM Module > Filter / search > Battery

Can you confirm this does indeed work for hybrids? I will update the spreadsheet if this is the case!

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[EONR24]

You can. Didn't take a screenshot when I did mine.

Cheers.

So battery state of charge does work with HYBRIDS?

 

[EONR24]

Does changing the battery state of charge, if it works on the hybrids, even help anything at all or is it mainly just Bad MotorCraft Batteries causing this?

Also, I am curious how many of these HYBRIDs with 12v problems are Lariats as well. Possibly Keyless Entry, and Keyless Start causing a battery drain if the Key Fob stays close enough?

 

[skinnyboy]

So battery state of charge does work with HYBRIDS?

The setting changed, not sure if there is any change with the actual charging profile.

Don't notice any difference, but I haven't had an issue with the original battery after fully charging it disconnected, then resetting the BMS after hooking it back up. That was with the type set to AGM and 80% charge target, and having it go stone dead (3v) one night.

Cheers.

 

[NedF]

Well after monitoring the SoC and Voltage for a couple of weeks I think I have come to a couple of conclusions; 1) I don’t understand the logic behind the BMS and probably never will. Since I have only had one deep sleep warning since getting my truck over a month ago I am just going to let it do its thing. I keep a jump box in the truck so I am not worried. 2) I don’t think double clicking the lock, using a Faraday cage etc makes any difference. I can see when I push an update from the truck but the loss of voltage is minimal. Maybe turning off communications to and from the truck will slow the drain but for now it does not appear to be broken just strange.

 

[BlueSpec1]

Can you confirm this does indeed work for hybrids? I will update the spreadsheet if this is the case!

Doesn't have any effect on my hybrid. 80% SOC in forscan is highest I've seen.
Today 75% SOC, DC/DC Setpoint 14.60V, 12V Batt 2 Amps:

 

[EONR24]

Doesn't have any effect on my hybrid. 80% SOC in forscan is highest I've seen.
Today 75% SOC, DC/DC Setpoint 14.60V, 12V Batt 2 Amps:

Have you performed a BMS RESET since changing the setting in FORSCAN? Not sure if it would be needed or not to see a change. I wonder if changing the type to Flooded does anything.

 

[EONR24]

Have you performed a BMS RESET since changing the setting in FORSCAN? Not sure if it would be needed or not to see a change. I wonder if changing the type to Flooded does anything.

and by changing the type to flooded, I mean this below

 

[EONR24]

Maybe even these setting below could be used to configure the battery differently.

 

[EONR24]

Have you performed a BMS RESET since changing the setting in FORSCAN? Not sure if it would be needed or not to see a change. I wonder if changing the type to Flooded does anything.

I can test and see if any true voltage changes happen on my ecoboost with the state of charge forscan change. Several have said they have had success doing it to their ecoboosts. It baffles me that the majority of Mavericks come from the factory with a flooded battery, yet they are all configured as AGM batteries...

 

[BlueSpec1]

Have you performed a BMS RESET since changing the setting in FORSCAN? Not sure if it would be needed or not to see a change. I wonder if changing the type to Flooded does anything.

Yes, changed battery settings 1st, then reset the BMS on same day 11-23-2023 AGM was installed.

I'm wondering if the hybrids will be included in the recent Loss of Drive Power from Undetected Low Battery recall and if that recall would change the 12V charging parameters.

As Is:
BMS - The battery monitoring sensor measures voltage, current and temperature of the battery and uses these inputs to calculate the battery condition, transmitting this information through the LIN circuit to the BCM

BCM - The BCM communicates on the HS-CAN1, determines the ignition state, communicates the power mode state and measures the 12-volt battery voltage with the battery sensor.

PCM - The PCM communicates on the HS-CAN1 and determines the ambient air temperature, enables and sets the low voltage charging setpoint, determines power pack status and transaxle gear state.

DCDC - The DCDC is responsible for maintaining and charging the 12-volt battery, it communicates on the HS-CAN1.

 

[BlueSpec1]

I can test and see if any true voltage changes happen on my ecoboost with the state of charge forscan change. Several have said they have had success doing it to their ecoboosts. It baffles me that the majority of Mavericks come from the factory with a flooded battery, yet they are all configured as AGM batteries...

I guess Ford doesn't think it matters as my 22 Escape was configured the same: AGM, but had the same flooded battery the Maverick hybrids have.

 

[EONR24]

Yes, changed battery settings 1st, then reset the BMS on same day 11-23-2023 AGM was installed.

I'm wondering if the hybrids will be included in the recent Loss of Drive Power from Undetected Low Battery recall and if that recall would change the 12V charging parameters.

As Is:
BMS - The battery monitoring sensor measures voltage, current and temperature of the battery and uses these inputs to calculate the battery condition, transmitting this information through the LIN circuit to the BCM

BCM - The BCM communicates on the HS-CAN1, determines the ignition state, communicates the power mode state and measures the 12-volt battery voltage with the battery sensor.

PCM - The PCM communicates on the HS-CAN1 and determines the ambient air temperature, enables and sets the low voltage charging setpoint, determines power pack status and transaxle gear state.

DCDC - The DCDC is responsible for maintaining and charging the 12-volt battery, it communicates on the HS-CAN1.

Great information. Thank you. "DCDC - The DCDC is responsible for maintaining and charging the 12-volt battery, it communicates on the HS-CAN1." THIS is why I think the state of charge change in FORSCAN is not changing anything voltage related. I will Monitor my EcoBoost at 80% for a day or two while driving occasionally and then change it 95% and monitor it again for a day or two. I am on the stock battery by the way. What app are you using? I think Im going to try to monitor it via wireless OBD2 and my iPhone

 

[BlueSpec1]

Great information. Thank you. "DCDC - The DCDC is responsible for maintaining and charging the 12-volt battery, it communicates on the HS-CAN1." THIS is why I think the state of charge change in FORSCAN is not changing anything voltage related. I will Monitor my EcoBoost at 80% for a day or two while driving occasionally and then change it 95% and monitor it again for a day or two. I am on the stock battery by the way. What app are you using? I think Im going to try to monitor it via wireless OBD2 and my iPhone

Forscan Lite for iOS is what I'm using

 

[The Real Maverick]

I have a ScanGauge III which can see these things, but not change settings.

Maybe Forscan is in my future.

I have cheap-o economy REFURBISHED batteries in my garage that hold 13.2 volts just sitting there, resting voltage while the one on my Maverick rests about 12.2. Occasionally 12.4. Occasionally 11.9 volts.

I'm still leaning towards the truck and software is ok and the batteries are just crappy.

Poor materials. Maybe impure metal plates. Maybe impure electrolyte. Maybe both.

Will see if one of my economy "refurbished" batteries for my OHV will fit in the Mav tonight.

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