fxstein
Well-Known Member
- First Name
- Oliver
- Joined
- Sep 17, 2024
- Threads
- 10
- Messages
- 120
- Reaction score
- 220
- Location
- California
- Vehicles
- 2023 R1T Quad Adventure
- Thread starter
- #1
Have been keeping a good eye on discharge patterns and did a long test over the holidays to measure the self discharge of the vehicle in Conserve + Shipping Mode.
From 12-4-24 until 1-14-25 the car discharged from about 85% down roughly 50% loosing around 0.79% of charge per day or about 1kWh per day.
Now that I have installed the latest SW updates there is a very interesting observation to be made:
At first look both 47.01 and 51.01 appear to discharge at a lower rate (don't have enough days of sleeping data yet) but the initial charts look like ½ half the discharge when looking at the SoC of the vehicle.
HOWEVER: This seems to be a feel good update to the discharge numbers. While on the surface the SoC decreases at half the rate compared to before (0.3-0.5% per day) don't celebrate too early.
At least part of the newfound efficency comes form the fact that the newer SW is derating the battery capacity gradually while the vehicle is in extended sleep cycles. From late Jan 20 to 22 the SoC discharge looks a lot flatter than before, BUT at the same time the car now derates the battery capacity during the same time by 2kWH from 130kWh to 128kWh. Because the battery capacity decreases, the displayed SoC of the vehicle decreases at a much slower rate.
When driving the vehicle again or when charging it, the battery capacity goes back up about the 130kWh mark, as it used to stay fairly constant before. It Means that that first drive or charge gets 'billed' for part of the discharge that happened while the vehicle was asleep.
I need to do more testing and analysis, but at first look this does not look good. I sure hope this is not a way to improve battery discharge optics.
From 12-4-24 until 1-14-25 the car discharged from about 85% down roughly 50% loosing around 0.79% of charge per day or about 1kWh per day.
Now that I have installed the latest SW updates there is a very interesting observation to be made:
At first look both 47.01 and 51.01 appear to discharge at a lower rate (don't have enough days of sleeping data yet) but the initial charts look like ½ half the discharge when looking at the SoC of the vehicle.
HOWEVER: This seems to be a feel good update to the discharge numbers. While on the surface the SoC decreases at half the rate compared to before (0.3-0.5% per day) don't celebrate too early.
At least part of the newfound efficency comes form the fact that the newer SW is derating the battery capacity gradually while the vehicle is in extended sleep cycles. From late Jan 20 to 22 the SoC discharge looks a lot flatter than before, BUT at the same time the car now derates the battery capacity during the same time by 2kWH from 130kWh to 128kWh. Because the battery capacity decreases, the displayed SoC of the vehicle decreases at a much slower rate.
When driving the vehicle again or when charging it, the battery capacity goes back up about the 130kWh mark, as it used to stay fairly constant before. It Means that that first drive or charge gets 'billed' for part of the discharge that happened while the vehicle was asleep.
I need to do more testing and analysis, but at first look this does not look good. I sure hope this is not a way to improve battery discharge optics.
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