Supercharger Avg Power

[K6CCC]

I've only used three Tesla Supercharger locations since I bought my truck 10 days ago. All were quick stops.
1: 56% - 75%, 13 minutes 28KWH with peak rate I saw was 128KW.
2: 75% - 90%, 24 minutes 21KWH with peak rate I recall of 110KW that ramped down to about 60KW after 80%
3: 72% - 87%, 21 minutes, 19KWH with peak rate a recall was about 120KW until it ramped down at 80%. I was more concerned with eating a late dinner than watching what was happening

#1 & 2 were one right after the other at SC locations a couple hundred yards apart. I started at the less expensive one, but it's in a store parking garage with big signs warning that the garage closes at 2130 - and I started at 2111. So pulled out before getting locked in, and went down the street. I wanted to be fairly fully charged due to my plans the next morning and only had 120V charging at home at that time (I have 240V at home now).

Sponsored

 

[vvgogh]

Ford specifies 15-80% DC fast charging for ER (85 kWh) at taking 41 min. So, 125 kW is the average charging power specification. My slower experiences at Superchargers are delivering 80% of the Ford spec. This adds 10 min totaling to 51 min for 85 kWh.

Here's a session from the 250 kW Tesla charger in Rifle, CO 11% to three points yesterday evening.

I'm only getting 75% of the average power @tommolog gets =(. He has a handy table graphic at the bottom of this page. He's charging 33% faster than me! It took me an extra 12 min to get to 80%!

I must be experiencing thermal throttling despite the charging port and adapter being shaded by the truck in the remaining evening sunlight. It's a consistent experience on other 250 kW Tesla V3 chargers for me. Not sure if I have the 10% more average power update... I'm only getting 85% of the original spec 125 kW average power let alone the 141 kW @tommolog reported.

 

[vvgogh]

I used the Telluride supercharger in a parking garage. Used my adapter and the garage shade ensured direct sun wasn't a factor. But, it's still summer. Starting about 28% SOC, I got about 165 kW peak, but the average dropped to 107 kW by the time I got to 80%. The original Ford spec was to accept 85 kWh in 41 min averaging 125 kW. There was a charging curve update @tommolog measured to deliver 79 kWh in 32 min averaging 146 kW, a 17% speedup. He used an EVgo station which provides 540A in the 1Q25 charging curve upgrade test.

I get 85% =107kW/125 kW of the original charge curve. And only 78% = 107 kW/137 kW of the '25 updated charge curve @tommolog measured (no idea if I got the update as I'm thermal bottlenecked in this Supercharger measurement).

I suspect my adapter is causing overheating throttling the current; non-Tesla chargers (no adapter needed) will sustain higher speeds.

July '24 @tommolog reported 46 kWh delivered from a Supercharger in 26 min averaging 106 kW, well below the original Ford Spec of 125 kW. He measured a peak temperature on the Tesla handle of 123F. I guess I'll bring my IR thermometer and a wet rag next time.

Is anyone getting 125-141 kW average power delivering 50+ kWh energy from a Tesla Supercharger?

Table. Telluride Supercharger on '23 ER Lariat, 8 Aug 2025 using Ford branded Lectron adapter​

Duration	Energy	Avg Power	Inst Power	SOC
10 min	22.8 kWh	137 kW	113 kW	45%
20 min	39.7 kWh	119 kW	99 kW	58%
40 min	71.3 kWh	107 kW	not recorded	80%

 

[jetfixr1]

I used the Telluride supercharger in a parking garage. Used my adapter and the garage shade ensured direct sun wasn't a factor. But, it's still summer. Starting about 28% SOC, I got about 165 kW peak, but the average dropped to 107 kW by the time I got to 80%. The original Ford spec was to accept 85 kWh in 41 min averaging 125 kW. There was a charging curve update @tommolog measured to deliver 79 kWh in 32 min averaging 146 kW, a 17% speedup. He used an EVgo station which provides 540A in the 1Q25 charging curve upgrade test.

I get 85% =107kW/125 kW of the original charge curve. And only 78% = 107 kW/137 kW of the '25 updated charge curve @tommolog measured (no idea if I got the update as I'm thermal bottlenecked in this Supercharger measurement).

I suspect my adapter is causing overheating throttling the current; non-Tesla chargers (no adapter needed) will sustain higher speeds.

July '24 @tommolog reported 46 kWh delivered from a Supercharger in 26 min averaging 106 kW, well below the original Ford Spec of 125 kW. He measured a peak temperature on the Tesla handle of 123F. I guess I'll bring my IR thermometer and a wet rag next time.

Is anyone getting 125-141 kW average power delivering 50+ kWh energy from a Tesla Supercharger?

Table. Telluride Supercharger on '23 ER Lariat, 8 Aug 2025 using Ford branded Lectron adapter​

Duration	Energy	Avg Power	Inst Power	SOC
10 min	22.8 kWh	137 kW	113 kW	45%
20 min	39.7 kWh	119 kW	99 kW	58%
40 min	71.3 kWh	107 kW	not recorded	80%

On my last trip I saw a peak of 165 at both a V3 and V4 but it was barely sustained for like a minute or so. That week it was pretty hot outside and my adapter was in direct sunlight. An ice cold wet rag did nothing, and the adapter was measuring 135F. My actual sustained rate was anywhere between 95-110 KW.

 

[hturnerfamily]

what is hard to ascertain with DCFC is that while the units and providers can 'state' a certain speed, such as 150kw or 350kw, it doesn't necessarily MEAN that, at that moment, it is giving you that amount. These units may have their own built-in derating for HEAT, draws from other vehicles charging at the same time, some type of limitation from the utility....who knows. We really don't know.
Yes, it's optimal to dream that we are going to get our Maximum rate at every opportunity, but it's almost more likely that we never will.

I always tell myself, when traveling, that DCFC is like that sign you see in movies, in a desolate lonely stretch of arid desert: "Last CHANCE...."

we get what we can get when we can get it. Clark Griswold says so.

 

[PJnc284]

what is hard to ascertain with DCFC is that while the units and providers can 'state' a certain speed, such as 150kw or 350kw, it doesn't necessarily MEAN that, at that moment, it is giving you that amount. These units may have their own built-in derating for HEAT, draws from other vehicles charging at the same time, some type of limitation from the utility....who knows. We really don't know.
Yes, it's optimal to dream that we are going to get our Maximum rate at every opportunity, but it's almost more likely that we never will.

I always tell myself, when traveling, that DCFC is like that sign you see in movies, in a desolate lonely stretch of arid desert: "Last CHANCE...."

we get what we can get when we can get it.

Also have cable limitations as well. Amusing when people complain and the cables are only rated for 2-300 amp

 

[MDErnst]

Is anyone getting 125-141 kW average power delivering 50+ kWh energy from a Tesla Supercharger?

Table. Telluride Supercharger on '23 ER Lariat, 8 Aug 2025 using Ford branded Lectron adapter​

Duration	Energy	Avg Power	Inst Power	SOC
10 min	22.8 kWh	137 kW	113 kW	45%
20 min	39.7 kWh	119 kW	99 kW	58%
40 min	71.3 kWh	107 kW	not recorded	80%

I recently made a trip from CO to LA and back and the V4 Tesla Supercharger in Tyler, TX rocked. I used the Ford NACS adapter and believe I averaged 125 kW over the 49 min charge adding 102 kWh in that time. (2025 Lightning Platinum 131 kWh)

 

[mrgoodkat]

186 kW max, 16.77 kwh in 7 minutes, 143.75 kwh average


Yesterday: 33.874 kwh in 15 minutes, 135.49 kwh average

 

[K6CCC]

From my observations, if the battery is fairly low, peak rate will be around 185 KW. That will taper off some, and once you hit 80% it will drop to around 55 KW. Above 85% it tapers off some more the higher you get. The highest percentage I ever did on a Tesla V# SuperCharger was 95% (it was a test). By the time it got to 95%, charge rate was down to under 15 KW.

So average will depend a lot on how high you are charging. If you get well passed the 80%, it will drop the average a lot.

 

[Zprime29]

I recently made a trip from CO to LA and back and the V4 Tesla Supercharger in Tyler, TX rocked. I used the Ford NACS adapter and believe I averaged 125 kW over the 49 min charge adding 102 kWh in that time. (2025 Lightning Platinum 131 kWh)

4%...you are a brave soul.

 

[MDErnst]

4%...you are a brave soul.

10+ years of EV ownership makes you cocky, errr, confident.

 

[vvgogh]

I recently made a trip from CO to LA and back and the V4 Tesla Supercharger in Tyler, TX rocked. I used the Ford NACS adapter and believe I averaged 125 kW over the 49 min charge adding 102 kWh in that time. (2025 Lightning Platinum 131 kWh)

Nice - your V4 experience was at least 17% faster than what I experienced on V3. Tesla V3+adapter has a thermal issue slowing the charge substantially. (Folks highlighting their peak charging rate in this thread are missing the point). I started bringing my IR thermometer in the truck next to the adapter, but I haven't used it yet.

Your V4 125 kW avg delivering 102 kWh in 49 min is still slower than the @tommolog reported from EVgo 146 kW avg delivering 79 kWh in 32 min. That's another 17% faster than your experience at V4 Tesla, though different parts of the charging curve are involved: your 4-80% vs. @tommolog 20-80%.

@MDErnst - Do you also have the V4 20-80% metrics? We could better compare to @tommolog's EVGo (540A capable) experience.

 

[MDErnst]

Do you also have the V4 20-80% metrics? We could better compare to @tommolog's EVGo (540A capable) experience.

I don't have that data for that session.

Above is same trip but Quanah, TX, I believe these were V3 (?) 43% - 80% averaged 145.7 kW.

Edit: I also have Tesla Supercharger stops that were not nearly as productive as those shown above. I find my results can vary significantly from one Tesla Supercharger to another.

Sponsored