OK, I know, I should have left my Roadster plugged in while I was gone - but it shouldn't have been a problem.
I was out of town for a week, and parked my Roadster in a rented garage 10 miles from home. Thanks to OVMS, I was able to monitor the state the whole time.
When I left, I had SOC 56% and Range 132 miles. Over the course of 8 days, the SOC went down to 54%, and the Range to 127 Miles. So far, so good, and exactly as expected.
My plan was to leave the Roadster there during the next three days of heavy rain, and pick it up for the weekend. This is where things start to get weird...
Late last night, Range was still 127 Miles. When I looked during Breakfast this morning, it was 16 Miles!!! There were no messages, and no sign that the car had ever been awake over the past 8 days. The Battery Temperature had slowly dropped from 85F to 73F, and since the PEM and Motor Temperatures hadn't updated since I left it (both still over 100F from the drive), there is no reason to think that the coolant pump had been running at any time.
By the time I could get to the garage, the SOC had gone to 0%. I plugged in for over an hour at 112V/12A (all that is available), but saw no change during that time. I then unplugged, pulled logs, and plugged in again but now in Range Mode, which showed 4% SOC.
I dropped off the log files at my local Service Center and went home. Right now, after 4 hours charging, SOC is up to 8%.
Looking at the logs, everything was very steady until about 3AM this morning, at which point the hourly IDLE records show:
The last two show the 12Amp charge starting, but SOC was too low to register in Standard Mode.
This is a complete mystery to me. I haven't found anything so far in the logs to indicate what happened.
I was out of town for a week, and parked my Roadster in a rented garage 10 miles from home. Thanks to OVMS, I was able to monitor the state the whole time.
When I left, I had SOC 56% and Range 132 miles. Over the course of 8 days, the SOC went down to 54%, and the Range to 127 Miles. So far, so good, and exactly as expected.
My plan was to leave the Roadster there during the next three days of heavy rain, and pick it up for the weekend. This is where things start to get weird...
Late last night, Range was still 127 Miles. When I looked during Breakfast this morning, it was 16 Miles!!! There were no messages, and no sign that the car had ever been awake over the past 8 days. The Battery Temperature had slowly dropped from 85F to 73F, and since the PEM and Motor Temperatures hadn't updated since I left it (both still over 100F from the drive), there is no reason to think that the coolant pump had been running at any time.
By the time I could get to the garage, the SOC had gone to 0%. I plugged in for over an hour at 112V/12A (all that is available), but saw no change during that time. I then unplugged, pulled logs, and plugged in again but now in Range Mode, which showed 4% SOC.
I dropped off the log files at my local Service Center and went home. Right now, after 4 hours charging, SOC is up to 8%.
Looking at the logs, everything was very steady until about 3AM this morning, at which point the hourly IDLE records show:
09/25/2018 03:18:33 | 1537859913 | IDLE | range soc = 53% ESS 21.78C - 22.73C, 3.849V min, 3.868V max, 63 brick min V, 22 brick max V
09/25/2018 04:18:41 | 1537863521 | IDLE | range soc = 52% ESS 21.78C - 22.74C, 3.839V min, 3.868V max, 46 brick min V, 22 brick max V
09/25/2018 05:18:47 | 1537867127 | IDLE | range soc = 35% ESS 21.77C - 22.73C, 3.775V min, 3.868V max, 46 brick min V, 22 brick max V
09/25/2018 06:18:54 | 1537870734 | IDLE | range soc = 32% ESS 21.77C - 22.72C, 3.766V min, 3.868V max, 46 brick min V, 22 brick max V
09/25/2018 07:19:00 | 1537874340 | IDLE | range soc = 19% ESS 21.77C - 22.71C, 3.736V min, 3.868V max, 46 brick min V, 43 brick max V
09/25/2018 08:19:08 | 1537877948 | IDLE | range soc = 16% ESS 21.77C - 22.70C, 3.717V min, 3.868V max, 46 brick min V, 41 brick max V
09/25/2018 09:19:15 | 1537881555 | IDLE | range soc = 16% ESS 21.77C - 22.70C, 3.717V min, 3.868V max, 46 brick min V, 41 brick max V
09/25/2018 10:19:22 | 1537885162 | IDLE | range soc = 15% ESS 21.77C - 22.69C, 3.697V min, 3.868V max, 46 brick min V, 43 brick max V
09/25/2018 11:19:28 | 1537888768 | IDLE | range soc = 7% ESS 21.77C - 22.70C, 3.668V min, 3.868V max, 46 brick min V, 41 brick max V
09/25/2018 13:19:27 | 1537895967 | IDLE | range soc = 8% ESS 23.36C - 24.32C, 3.614V min, 3.888V max, 46 brick min V, 22 brick max V
09/25/2018 04:18:41 | 1537863521 | IDLE | range soc = 52% ESS 21.78C - 22.74C, 3.839V min, 3.868V max, 46 brick min V, 22 brick max V
09/25/2018 05:18:47 | 1537867127 | IDLE | range soc = 35% ESS 21.77C - 22.73C, 3.775V min, 3.868V max, 46 brick min V, 22 brick max V
09/25/2018 06:18:54 | 1537870734 | IDLE | range soc = 32% ESS 21.77C - 22.72C, 3.766V min, 3.868V max, 46 brick min V, 22 brick max V
09/25/2018 07:19:00 | 1537874340 | IDLE | range soc = 19% ESS 21.77C - 22.71C, 3.736V min, 3.868V max, 46 brick min V, 43 brick max V
09/25/2018 08:19:08 | 1537877948 | IDLE | range soc = 16% ESS 21.77C - 22.70C, 3.717V min, 3.868V max, 46 brick min V, 41 brick max V
09/25/2018 09:19:15 | 1537881555 | IDLE | range soc = 16% ESS 21.77C - 22.70C, 3.717V min, 3.868V max, 46 brick min V, 41 brick max V
09/25/2018 10:19:22 | 1537885162 | IDLE | range soc = 15% ESS 21.77C - 22.69C, 3.697V min, 3.868V max, 46 brick min V, 43 brick max V
09/25/2018 11:19:28 | 1537888768 | IDLE | range soc = 7% ESS 21.77C - 22.70C, 3.668V min, 3.868V max, 46 brick min V, 41 brick max V
09/25/2018 13:19:27 | 1537895967 | IDLE | range soc = 8% ESS 23.36C - 24.32C, 3.614V min, 3.888V max, 46 brick min V, 22 brick max V
The last two show the 12Amp charge starting, but SOC was too low to register in Standard Mode.
This is a complete mystery to me. I haven't found anything so far in the logs to indicate what happened.
