HVB SOH 80%

[flapjake314]

the prize is you can tell @ARK he's not the worst anymore

ARK was pretty bummed to be at the bottom of the list originally

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[ARK]

the prize is you can tell @ARK he's not the worst anymore

ARK was pretty bummed to be at the bottom of the list originally

I just assumed that was a function of having one of the oldest cars. I feel for OP though, his is a 2023 while mine is a 2021 built in 2020.

 

[BillTinVT]

Here's an update on my battery SoH. After charing to 100%, and driving all week without charging, I finally got back down below 10% displayed SOC after driving 281 miles. My GOM now says I have 38 miles and 8% battery left. Energy to Empty is 10.77 kWh. HVB SOC is 12.56%. HVB SOC Display is 8.5%.
Seems like a pretty healthy battery to me. The scanner isn't impressed. HvB SOH is now showing 78.5% ¯\_(ツ)_/¯ . Now I'm plugged in at home waiting for my scheduled charging time to start charging back up to 90%.

 

[BillTinVT]

After charging back to 90%
Ford app energy added : 71.7kWh
Scanner HVB SOC: 86.5%
Energy: 70.88kWh Energy to empty
HVB SOH : 78.5%

 

[areacode413]

Check the SOH once you are at 30% battery remaining. The last calibration I performed did not result in an update to the SOH until my battery was around 30% remaining.

 

[BillTinVT]

Here's an update on my reported SOH. It's trending down.

I just go back from a 600+ mile road trip after which I ran my battery down to 5%. Charged back to 100% overnight. After sitting at 100% for a couple of hours, I checked my SOC and it's reading 75%.

At this rate, I might be eligible for a new battery before the end of the year.

 

[Mach-Lee]

At this rate, I might be eligible for a new battery before the end of the year.

Perhaps, keep us posted if it hits 70%.

 

[Scooby24]

Have we ever heard what goes into the calculation for SoH? It's clearly not a direct calculation of how much energy is available compared to provisioned capacity.

Warranty, I would also assume, doesn't go off of SoH..they would want to warranty based on 70% energy capacity, correct?

 

[Mach-Lee]

Have we ever heard what goes into the calculation for SoH? It's clearly not a direct calculation of how much energy is available compared to provisioned capacity.

Warranty, I would also assume, doesn't go off of SoH..they would want to warranty based on 70% energy capacity, correct?

The BECM measures how many amp hours go into the pack during a charging session, and uses that to calculate the battery capacity. Which is converted to a State of Certified Energy percentage. So it should be a direct measurement.

Warranty does go by the official certified SoH value (which is the same as what Car Scanner reports), so he will get a replacement if it hits 70% unless they can get it to recalibrate to a higher SoC value.

 

[BillTinVT]

The BECM measures how many amp hours go into the pack during a charging session, and uses that to calculate the battery capacity. Which is converted to a State of Certified Energy percentage. So it should be a direct measurement.

Warranty does go by the official certified SoH value (which is the same as what Car Scanner reports), so he will get a replacement if it hits 70% unless they can get it to recalibrate to a higher SoC value.

I'll add a couple more bits of info related to energy added. The displayed SoC before I started charging and the reported energy added for the charging session.

 

[flapjake314]

keep doing what you're doing, you may as well and get it below 70% haha

i think you might be the first/only battery warranty i've heard of based on SOH. i had once heard of someone with defective cells get one of the packs get replaced or something, i guess that technically might be SOH (or alternatively you may technically be the same issue)

 

[BillTinVT]

My HVB soh is now down to 72.5

Car is at the dealership today. I asked them to check the HVB. They said they don’t see any issues and I shouldn’t trust any third party scanner tool data.

 

[Mach-Lee]

My HVB soh is now down to 72.5

Car is at the dealership today. I asked them to check the HVB. They said they don’t see any issues and I shouldn’t trust any third party scanner tool data.

There won’t be any issues, just low health. What do they say the battery state of health is?

 

[HughJazzol]

Also:

Either way there are plenty of people who charge to 100% every night, while not the best for LONG term necessarily, shouldn’t have killed 20% of your battery in a couple months either.

Hello Voltologists
I stumbled onto this with great curiosity.
Based on the graphic above from the manual, it is better to schedule a charge hours after arriving home versus plugging in right away. Is that correct? Doing that will allow my battery to cool down before charging. I usually plug in to charge as soon as I get home to bring it up to 80% after my short commutes.
Thanks

 

[Maquis]

Hello Voltologists
I stumbled onto this with great curiosity.
Based on the graphic above from the manual, it is better to schedule a charge hours after arriving home versus plugging in right away. Is that correct? Doing that will allow my battery to cool down before charging. I usually plug in to charge as soon as I get home to bring it up to 80% after my short commutes.
Thanks

In theory, yes, it’s better to let the battery cool before charging.

In reality, the AC charge rate of about 0.1C won’t make a meaningful difference either way.

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