Taxman's Lightning Chronology

[Galactus55]

This thread looks like a good place to post. Now that I have my Lightning Lariat-ER with Max Tow. It was time to pickup my new CONNECT travel trailer.
It was a bad day for towing but I had no choice. Rainy, windy day. I had a head wind of 28klm gusts to 40klm (18mph to 25mph) I only needed to travel 100klm (62 miles) to get home so off we go.
Trailer specs:
Weight 8,000 lbs.,
Length 37 feet
Height 9.5 feet top of Air-conditioner,
By the time I got to the trailer dealership I had 84% charge =404klm (251 miles) range.
After hooking up the trailer and entering the trailer details the GOM says 202klm(126 miles) range.

The drive was very steady I could feel the wind gusts now and then. The truck pull the trailer very easily.

By the time I got home and parked the trailer in our RV storage lot. The GOM said 50klm (31miles) while connected to the trailer. After disconnecting from trailer GOM said 150klm (93miles)
This trip reported I used 150kWh/100klm.

If I am figuring right 150kWh/100klm = 150kWh/62miles= .41miles/kWh math wizards please check.

Not the best results. But I was on a 400 series HWY for half the trip running at 100kph (62MPH) into a 20kph head wind. So on a relatively calm day I think a safe charger to charger range would around 200klm (125miles). That would give me a good buffer for none functioning charge stations or camp sites with no open 50 amp sites. I think I can make this work time will tell.

As you can see the dealer service techs were all over the lighting. The fellow checking the power plugs has ordered a RIVIAN over a year ago and no sign of it yet. He wishes he had tried to order the lightning.

 

[TaxmanHog]

By the time I got to the trailer dealership I had 84% charge =404klm (251 miles) range.
After hooking up the trailer and entering the trailer details the GOM says 202klm(126 miles) range.

The drive was very steady I could feel the wind gusts now and then. The truck pull the trailer very easily.

By the time I got home and parked the trailer in our RV storage lot. The GOM said 50klm (31miles) while connected to the trailer. After disconnecting from trailer GOM said 150klm (93miles)
This trip reported I used 150kWh/100klm.

If I am figuring right 150kWh/100klm = 150kWh/62miles= .41miles/kWh math wizards please check.

Not the best results. But I was on a 400 series HWY for half the trip running at 100kph (62MPH) into a 20kph head wind. So on a relatively calm day I think a safe charger to charger range would around 200klm (125miles).

What was the SOC at the end of the trip to your home?

 

[Galactus55]

What was the SOC at the end of the trip to your home?

After unhooking the trailer it read 150klm (93 miles)

 

[TaxmanHog]

After unhooking the trailer it read 150klm (93 miles)

I got that from your post, but do you recall the State of charge %% it can be seen on the calm screen or if you go into TRUCK SETTINGS CHARGING screen on center stack

I'm trying to determining the change in SOC from start of haul to end of haul to pin down miles/kWh

Starting SOC was 84%, drive 62 miles, ending SOC 30%, delta SOC x 131KWH / 100 = consumed KW,
62 miles / consumed KW = miles per KW

84-42 = 42 % used
42*131/100 = 55 KW used
62/55 = 1.13 miles /KW

*********************
This result would be similar to what I experienced.

 

[LightningShow]

Hey! I stopped to charge at the Tewksbury EA on Sunday, too! That would’ve been a hell of a chance meeting! I was there between about 5-6pm. I live only about 10 minutes from that station.

 

[rolker]

Great to see that the Tewksbury EA can be trailer friendly! It will probably come in handy when I head south to go camping.

 

[Galactus55]

I got that from your post, but do you recall the State of charge %% it can be seen on the calm screen or if you go into TRUCK SETTINGS CHARGING screen on center stack

I'm trying to determining the change in SOC from start of haul to end of haul to pin down miles/kWh

Starting SOC was 84%, drive 62 miles, ending SOC 30%, delta SOC x 131KWH / 100 = consumed KW,
62 miles / consumed KW = miles per KW

84-42 = 42 % used
42*131/100 = 55 KW used
62/55 = 1.13 miles /KW

*********************
This result would be similar to what I experienced.

Sorry After unhooking the trailer it read 150klm (93 miles) SOC =30%
Ok using your formula
84-30=54 % used
54*131/100= 71 kw used
62/71 = .87 miles /Kw
Thanks TaxmanHog

 

[TaxmanHog]

Hey! I stopped to charge at the Tewksbury EA on Sunday, too! That would’ve been a hell of a chance meeting! I was there between about 5-6pm. I live only about 10 minutes from that station.

That would have been cool, While I was there in the morning a MME was there, got a lot of Q&A down while we were charging.

Later in the day it was a Polestar 2, who was not interested in talking.

 

[TaxmanHog]

Great to see that the Tewksbury EA can be trailer friendly! It will probably come in handy when I head south to go camping.

Yes, I think if we angle at about 45º, we could fit two rigs side-by-each.

 

[LightningShow]

That would have been cool, While I was there in the morning a MME was there, got a lot of Q&A down while we were charging.

Later in the day it was a Polestar 2, who was not interested in talking.

Only a lonely Leaf utilizing the ChaDeMo when i was there.

 

[FlasherZ]

I had to run to pick up some honey supers from our north apiaries today. Charged to 100%, left my home with the Lightning connected to my Big Tex 14TL 22' tilt-bed trailer.

https://www.bigtextrailers.com/14tl-pro-series-tilt-bed-equipment

My trip is 140 miles - 35 mi. running 60 on a state highway, 85 miles on Interstate @ 70 mph, then 20 miles running 60 on a state highway again. Going there empty, got 1.6 mi/kWh. Coming back with about 1,200 lbs. of honey supers stacked 6 high, it created an even bigger air dam and I only got 1.4 mi/kWh on the way home. I used 65% of range going there, then charged from 35-61% in 4 hours on 40A mobile charger, then stopped at the EA station in Effingham, IL.

As no one was charging, I just pulled across all the stalls to avoid dropping the trailer. I stayed with the truck in case I needed to change that if someone arrived, but no one did arrive. Charged back up to 60% again and made the rest of the way home.

Lessons learned:
#1 - I need a smaller trailer, something in the middle of the range. My small utility would have been crazy wavy-gravy, while this big one just sapped way too much range.
#2 - the 40A mobile charger I purchased from Amazon really really helped over the crappy Ford mobile connector, with 33% more range gathered in the 4 hours we worked the bees.
#3 - thank $DEITY that no one was charging, and no one came to charge while I was there. A car blocked my ability to take up only one station, so I had to pull across all of them.
#4 - the 350 kW EA station couldn't deliver more than 110 kW for most of the charging curve, until the battery voltage reached a reasonable amount. When I quit at 60%, the station was up to 120 kW. It was only able to deliver 300A. I kinda hoped my low SOC on arrival (25%) would have allowed 150 or 170 for a short while, but it started at 110 and stuck there.

 

[LightningShow]

I had to run to pick up some honey supers from our north apiaries today. Charged to 100%, left my home with the Lightning connected to my Big Tex 14TL 22' tilt-bed trailer.

https://www.bigtextrailers.com/14tl-pro-series-tilt-bed-equipment

My trip is 140 miles - 35 mi. running 60 on a state highway, 85 miles on Interstate @ 70 mph, then 20 miles running 60 on a state highway again. Going there empty, got 1.6 mi/kWh. Coming back with about 1,200 lbs. of honey supers stacked 6 high, it created an even bigger air dam and I only got 1.4 mi/kWh on the way home. I used 65% of range going there, then charged from 35-61% in 4 hours on 40A mobile charger, then stopped at the EA station in Effingham, IL.

As no one was charging, I just pulled across all the stalls to avoid dropping the trailer. I stayed with the truck in case I needed to change that if someone arrived, but no one did arrive. Charged back up to 60% again and made the rest of the way home.

Lessons learned:
#1 - I need a smaller trailer, something in the middle of the range. My small utility would have been crazy wavy-gravy, while this big one just sapped way too much range.
#2 - the 40A mobile charger I purchased from Amazon really really helped over the crappy Ford mobile connector, with 33% more range gathered in the 4 hours we worked the bees.
#3 - thank $DEITY that no one was charging, and no one came to charge while I was there. A car blocked my ability to take up only one station, so I had to pull across all of them.
#4 - the 350 kW EA station couldn't deliver more than 110 kW for most of the charging curve, until the battery voltage reached a reasonable amount. When I quit at 60%, the station was up to 120 kW. It was only able to deliver 300A. I kinda hoped my low SOC on arrival (25%) would have allowed 150 or 170 for a short while, but it started at 110 and stuck there.

In my experience the 350kW stations usually charge slower than the 150kw. I don't know why but the 150s have been way more stable and consistent for me. I don't bother with 350s anymore.

 

[FlasherZ]

In my experience the 350kW stations usually charge slower than the 150kw. I don't know why but the 150s have been way more stable and consistent for me. I don't bother with 350s anymore.

Unfortunately, without blocking the parking aisle or dropping the trailer first, the only station I could reach was the 350 kW station, so I dealt with it.

Watching the voltage vs. current, I could see that the 350 kW station seemed to be limited to around 315A or so. You can see the truck thinks it can handle up to 500A (requested current), but the station was only delivering 315A (and never did more):

Another interesting tidbit is that my state of health went back up from 99.5 pct to 100 pct...

 

[LightningShow]

Unfortunately, without blocking the parking aisle or dropping the trailer first, the only station I could reach was the 350 kW station, so I dealt with it.

Watching the voltage vs. current, I could see that the 350 kW station seemed to be limited to around 315A or so. You can see the truck thinks it can handle up to 500A (requested current), but the station was only delivering 315A (and never did more):

Another interesting tidbit is that my state of health went back up from 99.5 pct to 100 pct...

Oh, that’s cool that you can see what the truck is requesting. I really need to get that app.

Can it tell you how much energy the truck is using for the cooling system while charging?

 

[vandy1981]

Watching the voltage vs. current, I could see that the 350 kW station seemed to be limited to around 315A or so. You can see the truck thinks it can handle up to 500A (requested current), but the station was only delivering 315A (and never did more):

In my experience the 350kW stations usually charge slower than the 150kw. I don't know why but the 150s have been way more stable and consistent for me. I don't bother with 350s anymore.

The 150 kW EA chargers are limited to around 350 amps. Many of the 350 kW EA chargers are also still software limited to around 350 amps even though they should be able to provide the max CCS spec of 500 amps. In that case you would not see a benefit with the 350 kW chargers over the 150 kW chargers.

You will see benefit with a 350 kW charger that is not amperage derated:

-334V (@ 22% SOC) at 350 amps is 115 kW
-334V at 500 amps is 165 kW

This also explains why the Lightning will never get more than ~175 kW on a fast charger, even at low states of charge.

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