mecdatlanta
Posts: 5
Joined: Mon Nov 13, 2017 9:39 pm

Do I need an EVSE to get fast charging?

Mon Nov 13, 2017 9:46 pm

Greetings,

I've been reading posts and get most of what has been said around charging. I plan to buy an adapter from these folks: https://www.etsy.com/listing/384390572/chevy-volt-chevy-bolt-ev-level-2-charge?from_reg=2&joined=contact-seller&box=1 so that I can used the charger that comes with the Bolt.

My question is this: Is the included charger capable of DC charging? I am guessing not if there is so much discussion on EVSE devices.

Just trying to avoid a $600 expense if all that I really need is a $60 adapter.

BTW, the Bolt I am buying will have DC Fast Charging.

Thanks!

winterescape
Posts: 34
Joined: Sun Jun 25, 2017 1:35 pm

Re: Do I need an EVSE to get fast charging?

Mon Nov 13, 2017 9:59 pm

DC fast charging is a good option to have on the car and will be in public areas, take a look at plugshare to get an idea of how widespread it is in your area, filter and look only for CCS connectors, which is what the Bolt has. A DC fast charge will charge @ 90 miles in 30 minutes.

Level 2 charging (AC level 2) is what most everyone has at home. AC level 2 will charge at about 25 miles / hour

I installed a level 2 EVSE and ran a new circuit for it costing a little more than the $600 you quote. The adapter you link, used with the stock Bolt EVSE that comes stock with every Bolt, will provide nearly the charge capacity as what I installed for little cost.

DC Fast charging is not equal to AC level 2 charging
https://www.chevyevlife.com/bolt-ev-charging-guide

Edit:
I assume that you already have a 240V plug in the garage that you can use with the linked adapter?

SmokingRubber
Posts: 35
Joined: Fri Oct 13, 2017 9:32 pm
Location: Pismo Beach, California

Re: Do I need an EVSE to get fast charging?

Mon Nov 13, 2017 10:15 pm

The included charger is maxed out at 12 amps. So if you use that cord on 110v that's about 1.5 kWh ... that cord on 240v (still 12 amps) is 3kW when using one of the adapters you linked.

Actual Level 2 charging stations put out 6-8 kWh @ 30 amps and Level 3 stations (DC Fast Chargers) put out up to 33 kWh @ lotta amps. Maybe more or less though. 33kWh is the max I've experienced and 11 kWh is the lowest Level 3 I've found.

The Bolt has a 60 kW battery so if you're empty ...
@ 1.5 kWh = 40 hours to charge (Level 1)
@ 3.0 kWh = 20 hours to charge (Level 2)
@ 8.0 kWh = 7.5 hours to charge (Level 2)
@ 33.0 kWh = 1.8 hours to charge (DC Level 3)
Last edited by SmokingRubber on Mon Nov 13, 2017 10:29 pm, edited 1 time in total.
2017 Chevrolet Bolt Premier (DD)
2016 Mazda CX-5 Gran Touring (Wife's DD)
2013 Toyota FJ Cruiser (4x4 beachmobile)
2016 Mazda 3 Touring

mecdatlanta
Posts: 5
Joined: Mon Nov 13, 2017 9:39 pm

Re: Do I need an EVSE to get fast charging?

Mon Nov 13, 2017 10:28 pm

Thanks winterescape! Now it all makes sense. So I will never get DC-level charging at home. Good to know.

It's funny, with all the reading I did, I never saw anyone say that. I will almost never visit a public charging station, so I guess I won't see those super fast charge rates. Oh well, 25 miles/hr will be fine for me.

Thanks again!

desiv
Posts: 11
Joined: Mon Oct 30, 2017 5:00 pm

Re: Do I need an EVSE to get fast charging?

Mon Nov 13, 2017 10:32 pm

The 120v AC charger that came with it will do 8 or 12 amps (you can change that in the car menus) by default. That is your L1.
L2 is higher voltage 240v AC, and there are several options there. I believe that maxes out at about 4 miles per hour of charge.

As you have found out, that adapter you are ordering will let you use the included charger at 240v, so twice the voltage. Still 12 amps, but twice the speed, so I'm guessing about 8 miles per hour...
Then you move to the EVSEs that you can buy. They usually start at 16 amps (c. 16 miles per hour) at the lower end and most go up to 32 amps.
I believe the 32 amps option gets you about 24 miles per hour.

Then, you get to the DC fast charge options. That is around 400- volts DC. AMPs vary wildly depending...
There are low amperage (25 amp) ones and they go upwards from there to 100+ amps...
Thanx for the point of correction below!!!
Not 25 amp.. 25 kWh (and apparently it's 24kWh) and that's I guess about 100 miles per hour???
Apparently that is about 32amps and 480 volts DC.. From: https://www.chargepoint.com/products/commercial/cpe100/

desiv
Last edited by desiv on Mon Nov 13, 2017 11:57 pm, edited 1 time in total.

SmokingRubber
Posts: 35
Joined: Fri Oct 13, 2017 9:32 pm
Location: Pismo Beach, California

Re: Do I need an EVSE to get fast charging?

Mon Nov 13, 2017 11:31 pm

When your car is plugged in, you can press the START button and the display will tell you how many kWh you're receiving. I find this handy to see if I'm getting a full dose anytime I plug into an unfamiliar charger. So far, 33kWh is the max I've seen. That was at an EVGo station in Gilroy California. ChargePoint DCFC stations typically output 22kWh.
2017 Chevrolet Bolt Premier (DD)
2016 Mazda CX-5 Gran Touring (Wife's DD)
2013 Toyota FJ Cruiser (4x4 beachmobile)
2016 Mazda 3 Touring

mecdatlanta
Posts: 5
Joined: Mon Nov 13, 2017 9:39 pm

Re: Do I need an EVSE to get fast charging?

Mon Nov 13, 2017 11:56 pm

It seems to me that the EVSE is the way to go for the following reasons:

1) They charge at least twice as fast as the standard provided charger
2) I have read that the faster one charges the batteries, the longer one can stretch the life out

winterescape
Posts: 34
Joined: Sun Jun 25, 2017 1:35 pm

Re: Do I need an EVSE to get fast charging?

Tue Nov 14, 2017 1:26 pm

SmokingRubber wrote:The included charger is maxed out at 12 amps. So if you use that cord on 110v that's about 1.5 kWh ... that cord on 240v (still 12 amps) is 3kW when using one of the adapters you linked.

Actual Level 2 charging stations put out 6-8 kWh @ 30 amps and Level 3 stations (DC Fast Chargers) put out up to 33 kWh @ lotta amps. Maybe more or less though. 33kWh is the max I've experienced and 11 kWh is the lowest Level 3 I've found.

The Bolt has a 60 kW battery so if you're empty ...
@ 1.5 kWh = 40 hours to charge (Level 1)
@ 3.0 kWh = 20 hours to charge (Level 2)
@ 8.0 kWh = 7.5 hours to charge (Level 2)
@ 33.0 kWh = 1.8 hours to charge (DC Level 3)


Scratch my comment that using the adapter "will provide nearly the charge capacity as what I installed" It may be sufficient for your use but as SmokingRubber points out it still falls short of a good level 2 EVSE. Based on my personal Bolt use case, I would plug in every night and would have been just fine with the simple adapter. I currently plug in every few days, when my nominal estimated mileage falls below 80ish miles.

cosmacelf
Posts: 17
Joined: Thu Apr 20, 2017 8:31 pm

Re: Do I need an EVSE to get fast charging?

Tue Nov 14, 2017 3:46 pm

mecdatlanta wrote:Greetings,

I've been reading posts and get most of what has been said around charging. I plan to buy an adapter from these folks: https://www.etsy.com/listing/384390572/chevy-volt-chevy-bolt-ev-level-2-charge?from_reg=2&joined=contact-seller&box=1 so that I can used the charger that comes with the Bolt.

My question is this: Is the included charger capable of DC charging? I am guessing not if there is so much discussion on EVSE devices.

Just trying to avoid a $600 expense if all that I really need is a $60 adapter.

BTW, the Bolt I am buying will have DC Fast Charging.

Thanks!


Do you already have a 240V receptacle? That would be step one...

joe
Posts: 29
Joined: Tue Jun 20, 2017 1:41 pm

Re: Do I need an EVSE to get fast charging?

Tue Nov 14, 2017 5:49 pm

mecdatlanta wrote:2) I have read that the faster one charges the batteries, the longer one can stretch the life out


This is backwards

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