The thing that most impresses me about Tesla is the charging infrastructure. A 
good many times I take my Volt or Bolt and try to charge , the charger is in 
use or broken. Or it’s some charger i haven’t signed up for.   And, as I’ve 
stated, when you try to fast charge the price is all over the place. Then I go 
by a Sheets and see 10 Tesla chargers, mostly unoccupied. I’m jealous.   I 
understand newer Teslas pay to charge at their chargers. What is the rate and 
what is the experience? I wish they would include one or two chargers for the 
rest of us. I’m willing to pay- I just want the consistency in price and 
availability.

-Steve

> On Feb 23, 2021, at 1:43 PM, Mark Hanson via EV <ev@lists.evdl.org> wrote:
> 
> Thanks Peter for the thoughtful reply.  I was plugged into a 350Kw Electrify 
> America Level3 charger on the way to the Tesla dealership in Richmond at 34F 
> degrees, charged from about 40% to 80% (can’t fast charge past 80%), took 
> about an hour since like you mentioned the Bolt tapers down (requests current 
> limit from the 480v 3phase charger) from 50KW ish to 25kw.  So most of my 
> charging was done at the lower rate, hence the long charge time.  After 
> looking at a bunch of Tesla S 3 X Y (mostly Ys looking at for towing the 
> 1480lb ski boat), I came back to the same Sheetz to spend another hour for 
> another 25KWH.  Tesla’s charge completely in about 15 minutes at 150KW the 
> salesman said.  If it weren’t $50K with no fed incentives , I’d buy one.  The 
> Bolt was $30k new ($40k- $10k Covid discount).  Shelor in Christiansburg is 
> selling 21’ models now at $26K (after the Covid discount). 
> Stay Charged
> Mark
> 
> Sent from my iPhone
> 
>> On Feb 23, 2021, at 11:38 AM, e...@vanderwal.us wrote:
>> 
>> Not sure where you you read that, but I'm betting it said 55kw and not 
>> 55kwh.
>> 
>> The bolt can charge at up to 55kw (assuming you are plugged into at least an 
>> 80kw DC fast charger) but it will only charge at that rate until the battery 
>> gets to 55% SOC, then it drops down to 35kw until it hits 70% SOC, where it 
>> drops down to 25 kw until it hits 85% SOC, 15kw until 95% and 10kw until 100%
>> 
>> So if you push the car into the charging spot with a completely empty 
>> battery, you can charge at 55kw for about 37 minutes before the charge rate 
>> drops to 35kw, and another 15-16 minutes before it drops to 25kw, etc.
>> 
>> The maximum you can get into the pack in 1 hour is about 45kwh, and that is 
>> only if you start with a completely empty pack and are using a charger rated 
>> for 80kw or higher.
>> Oh yeah, temperature also effects charge rate, charging can slow down if the 
>> temperature is very high or very low.
>> 
>> Note: you need a charger rated for 80kw because chargers are rated for 
>> different voltages than most EVs use.
>> Most fast chargers are rated for charging a 500V pack or higher. So an 80kw 
>> charger is rated for a maximum of 160 amps at up to 500V. You don't get more 
>> current if using a lower voltage.
>> 
>> The Bolt's battery pack is only 350-360V and it can only charge at a max of 
>> 155 Amps (~55kw) but as I said above it will only do that up to 55% SOC.
>> If you plug into a 50kw fast charger (500V @ 100 amps) you will only get 
>> 35kw charging even if the battery is below 55% SOC.
>> If you plug into a 35kw fast charger you will only get 24-25 kwh.
>> 
>> So depending on the SOC you start at and the rating on the DC fast charger, 
>> you could end up with only 25kwh after 1 hour.
>> I.e. if you plug into a 35kw charger (25kw effective charge rate) you will 
>> get exactly 25kwh after 1 hour unless you go above 85% SOC.  The majority of 
>> the older DC fast chargers were rated for 35kw.
>> 
>> February 23, 2021 6:05 AM, "Mark Hanson via EV" <ev@lists.evdl.org> wrote:
>> 
>> Hi folks
>> When I fast charge on the Road to 80% with my Bolt EV it takes about an hour 
>> to put back 25KWH. The
>> manual says it should be 55kwh in an hour. Does anyone know why it’s not 
>> charging at the 55KW rate?
>> Is there an aftermarket kit to boost the KW acceptance rate? Electrify 
>> America fast CCS chargers
>> operate to 350KW. Also I paid 43c per kWh at Sheetz near Charlottesville Va 
>> (home is 12c). I assume
>> they split the take between Sheetz and Electrify America (VW)?
>> I saw on the news that folks in Texas are paying $100s per KWH and utilities 
>> cleaning out checking
>> accounts $10k-$16k since direct link to accounts. How is this even possible 
>> to charge that much per
>> KWh? Aren’t utilities regulated for a max per kWh they can charge? I have a 
>> direct link to my
>> checking account with my utility to pay the monthly $31 service fee (net 
>> zero solar customer ) but
>> maybe I should discontinue my checking account number with them and go back 
>> to monthly
>> billing/paper checks so they couldn’t clean out my checking account?
>> Have a renewable energy day 
>> Mark in Roanoke
>> 
>> Sent from my iPhone
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