Active Road Noise Reduction (Active Noise Cancellation (ANC)) Now Available on Cybertruck!

[Gigahorse]

Just an honest question here, as I sometimes get confused with electricity measurements. But isn't this like 500kw (or 123kw) per a unit of time too? Like per hour? I'm sure you're probably just abbreviating assuming everyone knows what you mean, but I'm just trying to get it clear in my head.

500kw was the advertised new high speed charging rate from Tesla
123kw is the actual average you will get if you plug in at a low % and charge to a high % at a supercharger due to the charging curve being so bad

So instead of that full charge when trailering taking you 23mins a (500kw) due to the bad charging curve it takes an hour and thirty minds

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[Gigahorse]

I agree on the no pull through, it drives me bonkers with a trailer on.
I see where you're coming from, we do get 500kW as advertised but only at low SoC. I think they could do a special Tow Mode charging session curve, but then the warranty will need to be adjusted.

Yea if they wanted to dial down my battery warranty by X number of miles every time I SUPERCHARGED to get on the road I would take it in a heartbeat. That would be a decent compromise.

 

[Cyberkingz]

500kw was the advertised new high speed charging rate from Tesla
123kw is the actual average you will get if you plug in at a low % and charge to a high % at a supercharger due to the charging curve being so bad

So instead of that full charge when trailering taking you 23mins a (500kw) due to the bad charging curve it takes an hour and thirty minds

That makes sense, but it doesn't mean the charging curve is bad. It means the curve is optimized for cell health where you personally would like it to be optimized for time only. If you were to charge daily at 500kW when at 90%+ SoC not only are you going to degrade your battery at lightning speed but you're also asking for thermal runaway. It's not that simple.

 

[SCTesla]

I haven't been in the situation of towing in the mountains at -4 degrees to get to the next stop, but I have discovered at least for my style of driving, the trip planner is a little conservative. I've found that if I dial it down to arrive at 5% charge and drive at 75 or less I have 8% when I arrive. Stopping at 95 or even 98% can significantly cut down on charging time, even if the planner thinks I'm cutting it close.

I wasn't towing, but I was nervous because even at 99%, it said I would get to the next stop at 8%.

 

[Gigahorse]

That makes sense, but it doesn't mean the charging curve is bad. It means the curve is optimized for cell health where you personally would like it to be optimized for time only. If you were to charge daily at 500kW when at 90%+ SoC not only are you going to degrade your battery at lightning speed but you're also asking for thermal runaway. It's not that simple.

Which I am fine with, other than Tesla advertising 500kw charging. It is 123kw charging aka about 4x slower than advertised
If they advertised standard slow charging at 100-150kw no problem, would have kept the ICE truck for towing. But advertising 500kw charging is the only issue, albeit a big one.

 

[Cyberkingz]

Which I am fine with, other than Tesla advertising 500kw charging. It is 123kw charging aka about 4x slower than advertised
If they advertised standard slow charging at 100-150kw no problem, would have kept the ICE truck for towing. But advertising 500kw charging is the only issue, albeit a big one.

You're fine with thermal runaway? lol

 

[dLux]

Any rumors on matrix headlights?

It was established on X (Lars mentioned himself) that they could not squeeze the hardware into that small space, so existing hardware won't get it for sure.

 

[dLux]

Grok says we have the equipment and we are just an OTA update away from using them but no clue or guess as to when

No, we won't get it.



The whole thread earlier that gave me false hope: https://www.cybertruckownersclub.co...k-says-tesla-vp-of-vehicle-engineering.36796/

 

[Bridgeboy69]

Wh = V x A

OK, so sorry if following up with a dumb question (again), but then wouldn;t the kw you mentioned really be kw/h?

500kw was the advertised new high speed charging rate from Tesla
123kw is the actual average you will get if you plug in at a low % and charge to a high % at a supercharger due to the charging curve being so bad

OK, I get that it is slower. But since we're talking about a time variable here, should that be called 123kw per hour? Or something like that? That is the part that is apparently confusing me, but I get confused pretty easily when it comes to electrical stuff...

 

[Gigahorse]

OK, so sorry if following up with a dumb question (again), but then wouldn;t the kw you mentioned really be kw/h?

OK, I get that it is slower. But since we're talking about a time variable here, should that be called 123kw per hour? Or something like that? That is the part that is apparently confusing me, but I get confused pretty easily when it comes to electrical stuff...

If you plug in for 30s you might get 500kw but if that only gives you 1% charge it doesn't matter.
Average charging speed over the session is what matters, how long does it take to charge so you can get on your way. The average is about 123kw in ideal scenarios for a full charge, which is about 1/4 of the advertised 500kw speed

Simplest terms.
500kw advertised charging rate = 20min charge time
123kw actual charging rate = 90 min charge time

90min charge time is not the end of the world as it isn't always necessary, but it is miles from the advertised.

 

[Cyberkingz]

OK, so sorry if following up with a dumb question (again), but then wouldn;t the kw you mentioned really be kw/h?

OK, I get that it is slower. But since we're talking about a time variable here, should that be called 123kw per hour? Or something like that? That is the part that is apparently confusing me, but I get confused pretty easily when it comes to electrical stuff...

kWh measures energy, for ex. If a charger delivers an average of 123 kW for 1 hour, you add 123 kWh of energy. If you charge for 30 minutes you delivered 61.5kWh. KW measures power, the rate that the energy is delivered.

If your wall connector is 11kW, if you charge for two hours it will deliver 22kWh to your Tesla.

 

[Bridgeboy69]

kWh measures energy, for ex. If a charger delivers an average of 123 kW for 1 hour, you add 123 kWh of energy. If you charge for 30 minutes you delivered 61.5kWh. KW measures power, the rate that the energy is delivered.

If your wall connector is 11kW, if you charge for two hours it will deliver 22kWh to your Tesla.

OK, so what I am saying is correct then? It is 123kw/hr. Right?

 

[Cyberkingz]

If you plug in for 30s you might get 500kw but if that only gives you 1% charge it doesn't matter.
Average charging speed over the session is what matters, how long does it take to charge so you can get on your way. The average is about 123kw in ideal scenarios for a full charge, which is about 1/4 of the advertised 500kw speed

Simplest terms.
500kw advertised charging rate = 20min charge time
123kw actual charging rate = 90 min charge time

90min charge time is not the end of the world as it isn't always necessary, but it is miles from the advertised.

It was never advertised to charge at an average of 500kW. It was advertised as 500kW peak power. If EVs charged constant current it wouldn't be called a charge CURVE (picture a curve in graph form with tapering current). Never once was a 0%-100% charge in 20 minutes advertised, 500kW charging was advertised and it is 100% correct. 500kW is possible bc your cybertruck is 800VDC nominally and v4 superchargers can output up to 615ADC at 1,000VDC (best in class for sure) . Your anger is misguided here I promise you.

 

[EWELON]

seems like having a three-press option for enabling a more aggressive charging curve would be nice:

Welcome to the SC stall. I want all the kW!
Okkkkk…you can do this but it does this to the battery: (this). are you sure? YES!
But are you REALLY sure???? YEEESSSS!

500kW unlocked.

 

[Cyberkingz]

OK, so what I am saying is correct then? It is 123kw/hr. Right?

Correct, for easy math your CT battery is 123kWh in size. If you charge it at 50kw from completely dead to 100% it will take 2.46 hours 123 / 50 = 2.46.
If you charge it at 123KW (constant rate without any charge curve) it will take exactly one hour if in 100% health.

Of course charge curves exist because you wouldn't want to force ions against each other at demanding charge rates once the battery gets to a higher state of charge, its unsafe and terrible for the batteries.
Your apple iPhone does this too for cell health AND safety reasons.

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