Bummer. The temp in the 90's didn't help.bnewkirk wrote:I just got back from a 300+ mile round trip from Centralia to Ellensburg in our 2018 SV. Much of the day the temperature was in the 90s. Did a quick charge in North Bend, but a 30 minute session only netted about 40%. Apparently the heat limited the charging.
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Made it to North Bend with 20% and went to the QC and parked in the shade w/ water poured under the car for evaporation cooling.
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This was my first long trip with the car and I'm not favorably impressed. I will not take it beyond its normal charge range in hot weather again.
Where was the temperature bar at before you started your trip? And what speed were you traveling before your first quick charge? Based on that very first QC being throttled already I'm guessing you were going 70+. Limiting your speed will really help with the temps and won't hurt you near as much time as what people think.bnewkirk wrote:I just got back from a 300+ mile round trip from Centralia to Ellensburg in our 2018 SV. Much of the day the temperature was in the 90s. Did a quick charge in North Bend, but a 30 minute session only netted about 40%. Apparently the heat limited the charging. Due to traffic, we were getting pressed on time (not enough time to get another charge), so we drafted a semi into Ellensburg. Had to use AC (set at 72 with 3 fan bars) and the battery registered in the red for temp. After the car sitting in a sunny parking lot at 95 degrees for a couple hours, we went over to the QC and it took 80 minutes to bring it up from 10% to 80%, again in the red zone. This time the warning come on saying the battery is hot and we should drive conservatively. Set the cruise for 55, but as we began to go up the pass, the warning said power would be reduced and put us in 2018 turtle mode. I was in the slow lane with the semis doing 40 mph. Made it to North Bend with 20% and went to the QC and parked in the shade w/ water poured under the car for evaporation cooling. 30 minutes only netted 20%, so we went another session to get up to 60%. Then we set the cruise at 55, turned off the AC and opened the windows as we went downhill to minimize battery usage. Needless to say, it was a bit of an antsy situation. Bad traffic in Tacoma helped keep battery usage down and the turtle mode warning finally went off. South of Tacoma we drafted a semi home at 65 mph with 5% left in the battery. This was my first long trip with the car and I'm not favorably impressed. I will not take it beyond its normal charge range in hot weather again.
bnewkirk wrote:I just got back from a 300+ mile round trip from Centralia to Ellensburg in our 2018 SV. Much of the day the temperature was in the 90s. Did a quick charge in North Bend, but a 30 minute session only netted about 40%. Apparently the heat limited the charging. Due to traffic, we were getting pressed on time (not enough time to get another charge), so we drafted a semi into Ellensburg. Had to use AC (set at 72 with 3 fan bars) and the battery registered in the red for temp. After the car sitting in a sunny parking lot at 95 degrees for a couple hours, we went over to the QC and it took 80 minutes to bring it up from 10% to 80%, again in the red zone. This time the warning come on saying the battery is hot and we should drive conservatively. Set the cruise for 55, but as we began to go up the pass, the warning said power would be reduced and put us in 2018 turtle mode. I was in the slow lane with the semis doing 40 mph. Made it to North Bend with 20% and went to the QC and parked in the shade w/ water poured under the car for evaporation cooling. 30 minutes only netted 20%, so we went another session to get up to 60%. Then we set the cruise at 55, turned off the AC and opened the windows as we went downhill to minimize battery usage. Needless to say, it was a bit of an antsy situation. Bad traffic in Tacoma helped keep battery usage down and the turtle mode warning finally went off. South of Tacoma we drafted a semi home at 65 mph with 5% left in the battery. This was my first long trip with the car and I'm not favorably impressed. I will not take it beyond its normal charge range in hot weather again.
cwerdna wrote:Bummer. The temp in the 90's didn't help.bnewkirk wrote:I just got back from a 300+ mile round trip from Centralia to Ellensburg in our 2018 SV. Much of the day the temperature was in the 90s. Did a quick charge in North Bend, but a 30 minute session only netted about 40%. Apparently the heat limited the charging.
...
Made it to North Bend with 20% and went to the QC and parked in the shade w/ water poured under the car for evaporation cooling.
...
This was my first long trip with the car and I'm not favorably impressed. I will not take it beyond its normal charge range in hot weather again.
The bolded part probably had little to no effect. You're going to need Leaf Spy to sensor the pack temperatures. For me, on my 24 kWh Leaf, I find that the pack has a lot of thermal mass and it takes awhile (MANY hours) to cool down to cooler ambient temps. You DC FCing when it's already 90 F out I'm sure pushed the temps up quite a bit. My wild guess is that once you got the temp warning, the pack temp was past 120 F.
https://web.archive.org/web/20170717073 ... hp?t=22134 really heated up his pack.
My wife would be demanding that I get rid of the car after a trip like this, and I don't think she would stop until the car was gone.bnewkirk wrote:This was my first long trip with the car and I'm not favorably impressed. I will not take it beyond its normal charge range in hot weather again.
I decided to parse this trip in terms of miles per minute added during DCFC.bnewkirk wrote:I just got back from a 300+ mile round trip from Centralia to Ellensburg in our 2018 SV.