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Battery, SOC, Updates

Allted

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Well, I have always had issues with updates, I ran updated everything a few months back with FDRS. For me charging was the issue. My stereo has been giving me low battery warnings when I power down and my passenger handle doesn't unlock so I checked my SOC was at 36%. I drive everyday. So I fully charged the battery, and reset the BMS.

I started up the forscan guages and I watched the state of charge go from 69% to 70% and stop. The current was 10 and dropping while it was running and once it hit 70% is just drips in and you can only see any current pulses in the O-Scope screen.

I tried changing the state of charge to 90% and that didn;t change anything.

Am I missing something or is my battery toast?
Ford F-150 Battery, SOC, Updates Screenshot 2023-06-19 132127
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rugedraw

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Well, I have always had issues with updates, I ran updated everything a few months back with FDRS. For me charging was the issue. My stereo has been giving me low battery warnings when I power down and my passenger handle doesn't unlock so I checked my SOC was at 36%. I drive everyday. So I fully charged the battery, and reset the BMS.

I started up the forscan guages and I watched the state of charge go from 69% to 70% and stop. The current was 10 and dropping while it was running and once it hit 70% is just drips in and you can only see any current pulses in the O-Scope screen.

I tried changing the state of charge to 90% and that didn;t change anything.

Am I missing something or is my battery toast?
I would just replace the battery at this point.
 
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Allted

Allted

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Thanks. I have a recall appointment coming up I'll see if I can get them to test the battery or something before I spend on a new one.
 

KTM753

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Interesting that the Forscan changes didn't work. I wonder why? Maybe try them again?
 

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It's been pretty well documented in some other threads that the Forscan edit isn't as cut and dry as it might seem. Even set to whatever 95% actually means, the 12V battery charging strategy is still very conservative once the battery is considered to be at 75% SOC or better.

It will keep charging, of course, but not nearly as aggressive as a target of 95% would imply. At 80% SOC, it's basically trickle charging.
 

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Allted

Allted

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Thanks. I did read a bunch of your posts on it. That is actually what made me dig a bit deeper.

I manually entered an SOC of 90, I am fairly certain I did the previous edit in the clicky menu, the only edit I have done that way. When I looked at the as built it did not match. I entered it power cycled and started it up. It quickly charged to 69 slowed to 70 then....kept going at about 3A. So I went for a short 10 minute drive. It showed a 3A charge the entire time but never did get above 70. I think I will drop it on the 5A charger overnight and see if it goes above 70 by the morning. Previously it showed a full charge at 70. I will say that short drive I just took was the first time I had the auto start stop work in so long I forgot I had it and thought I killed the truck! :ROFLMAO:
 

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When I get home today, I took my typical screen shot before shutting down. I do this so I can track/compare at next startup. (any changes that might take place while the truck sits overnight)

Battery Management had reduced charging voltage to 13V at 3 amps with the SOC only being 78%.

But honestly, I believe the charging strategy is actually pleased with the battery at 78%

Ford F-150 Battery, SOC, Updates 20230619_213458


Currently, (4 minutes ago) After sitting parked for 5.5 hours, the resting voltage is 12.53V

I've seen it much lower, so I'm not complaining. :)

Ford F-150 Battery, SOC, Updates Screenshot_20230619_213539_Battery Monitor
 

RcFlyer330

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well my truck is definately an oddball because the last couple times I fired up obdlink the battery LV SOC has been in the 90% range. This has been this way for the last couple months with no forscan mods.
 

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Do you have longer than average drives recently? Beyond 40 miles or so?

I've seen 88% a few times after traveling on what I would call a road trip. :)

(Galveston area to San Antonio and back)
 
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Allted

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Okay just to add more mystery to the pot. Charged it overnight on a 5a noco charger.

It hit 78 and stopped charging. That was with me setting it back to the factory 80% SOC. I am going to change it to 90% and see if anything changes but I will also unplug the battery and charge it directly.
 

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RcFlyer330

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Do you have longer than average drives recently? Beyond 40 miles or so?

I've seen 88% a few times after traveling on what I would call a road trip. :)

(Galveston area to San Antonio and back)
No just my normal 20 minute drive to and from town everyday.
 

KTM753

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@Snakebitten what app and hardware are you using to get that screenshot with SOC ?
 

powerboatr

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When I get home today, I took my typical screen shot before shutting down. I do this so I can track/compare at next startup. (any changes that might take place while the truck sits overnight)

Battery Management had reduced charging voltage to 13V at 3 amps with the SOC only being 78%.

But honestly, I believe the charging strategy is actually pleased with the battery at 78%

20230619_213458.jpg


Currently, (4 minutes ago) After sitting parked for 5.5 hours, the resting voltage is 12.53V

I've seen it much lower, so I'm not complaining. :)

Screenshot_20230619_213539_Battery Monitor.jpg
my big question..is HVB SOC at 47 after drive home. does it get back to normal on way to work or does it hover in the 40-60 % range.? i ask because i may put a thing in the maverick to see what they get on a normal day
thanks for the data and tools we need
 

Snakebitten

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The HV Battery SOC fluctuates continuously between ~42% & 63%.

On my 23 mile commute it can both bottom out and top off multiple times.

Unlike the LV SOC which is always on the increase and much slower going about it.
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