# Forums

## What can I expect from a Blink Level 2 charge?

I am driving from north Phoenix to Marana Arizona next month and will need to get a charge down there to get back to my home in Cave Creek. I found a private guy on PlugShare who lives near my motel and I can use his Blink level 2 charger which is outside his home. And anyone tell me how many miles that will give me per hour? Will the adapters Tesla supplied work with a Blink?

There is also a Blink J1772 at a Kohl"s nearby, in walking distance. How do I tell what level it is?

I'm new to this stuff?

AmpedRealtor | 28 dicembre 2013

It all depends on how many Amps the charger provides. Level 2 covers a wide range of current. To determine how quickly you can charge at a given current level, use this calculator:

http://www.teslamotors.com/charging#/calculator

dortor | 28 dicembre 2013

anywhere from 15 to 30 AMPS at most public charger @ 240 v

AMPS x Volts = Watts

15 * 240 = 3600 watts
32 * 240 = 7680 watts

7680 watts = ~20 miles of range per hour of charge
3600 watts = ~10 miles of range per hour of charge

most public charging stations (Blink & Charge point) deliver 30 amps)
but sometimes only 16 amps

it all depends on the charger and it's install - some public chargers are 40 amps or more - but I would not consider that common.

negarholger | 28 dicembre 2013

I used a public Blink in the San Diego area... it charged at 5kW ~ 15 miles/hr. Adding 100 miles took 7 hrs.

AmpedRealtor | 28 dicembre 2013

Clearly Level 2 charging is yesterday's technology. Who has time to wait around for over 5 hours to get a 100 mile charge? I don't understand why these companies are still deploying such outdated and slow technology. Tesla is today powering its vehicles using superchargers that are 15x-20x faster than these Level 2 chargers.

Even a Leaf will take 3 hours to charge fully at one of these Level 2 chargers. What is the point?

Leeo | 28 dicembre 2013

I heard a few months ago Blink lowered the charging current on most of their public chargers to 15amps due to connector issues. I have one at home and it it charges at 30amps. When I called Blink they said some cars (didn't say which cars) try to overtake the charger to 40amps. So they lowered the current.

stevenmaifert | 28 dicembre 2013

The point:
1) Not everybody can afford a Tesla.
2) Tesla's DCQC technology is proprietary and they're not sharing (yet). Even the Toyota RAV4 EV that uses a Tesla power train and battery can't use the SCs.
3) With few exceptions, the SCs are not located in metro areas.
4) Most Level 2 charging is done at home, overnight, where time-to-charge is less critical.
5) DCQCs are expensive for commercial enterprises to install compared to Level 2.
6) Not all EVs can DCQC leaving Level 2 the only option.
7) Most public access Level 2 chargers are located in places where folks park and spend some time.
8) Public access Level 2 chargers are not the primary means by which most non-Tesla EV owners charge their cars. They're more of a convenience when you might need an hour or so of peace-of-mind charging to know you can make it home.

I could go on, but what's the point?

jbunn | 28 dicembre 2013

Blink also charges by the hour. I'm not impressed by Blink's explanation. I think it's a way to sell the same power for double the price. Also, I don't like the whole hour increment that I've seen on paid charging. Charge 20 mins, pay for an hour. Charge 65 minutes, pay for 2 hours.

My preference? L2 is a dead technology. It's the 8 track of the charging world. Stop deploying 30 amp L2 and go with higher amperage services.

AmpedRealtor | 29 dicembre 2013

Level 2 chargers can go up to 70A or 80A, right? The solution to improving Level 2 charging would be to simply increase the current from the anemic 30A that most chargers are dispensing. That would more than double the charge rate, making a wait that's totally impossible at least tolerable.

omarsultan.ca.us | 29 dicembre 2013

I would not expect to see an upgrade until there are more cars out there that can take advantage of the higher amperages and until the plug wars settle down.

O

Doug H | 29 dicembre 2013

I would avoid Blink chargers all together unless charging overnight and then only as a last resort. Their charge currents have been universally reduced to 24 amps and below. Other Level 2 chargers like Chargepoint are fine for overnight charging. As for charging during the day on a long trip, I either find RV Parks or use Plugshare or Recargo to find private owners of HPWC that are willing to share them with travelers.

At my company, we share our HPWC at our warehouse here in Georgia; its listed in Recargo and Plugshare. I am planning a trip from Chicago to Philadelphia next week. There are several private businesses and homes in Ohio that share 50 amp or HPWC outlets and chargers. Since I will use them during the day to extend my range, I only plan to use 50 amps and above. Even at night, I am renting cabins at RV Parks and charging using their 50 amps camper sites.

Alex K | 29 dicembre 2013

The Blink charger that I have at my house runs at 32A.

I tried the Blink chargers at the Outlet Malls in Casa Grande, the ones at the gas station further north and the ones at IKEA. They all were running at 24A @208V. I haven't tried the ones at Kohl's for a while and at that time I had a Leaf and the amperage was of no concern. It seems that all the Blink chargers in AZ have been turned down to 24A. The ones I have tried out in the wild still get a very hot connector, even after they have only run for a few minutes.

I would recommend using the (non-Blink) chargers at the Bowlin Travel Center at Picacho Peak because they run at 70A @208V. You'll need a ChargePoint card (or call the toll free number on the charger), but the chargers are currently free and provided by Goe3.com. These chargers are about 30 miles from Marana, but worth the stop since they charge at about 47mi/hr. I always use these chargers to get a small boost when doing a round trip to Phoenix from Tucson.

Pungoteague_Dave | 29 dicembre 2013

Blink L2 chargers in most locations provide 14 to 21 miles per hour. Most of the ones we have used at places like Whole Foods, Cracker Barrel, charge the Model S at 16 miles per hour. As noted above it does vary by amps, but there are very few with more than the minimum. Plugshare helps while you are on the road.

stevenmaifert | 29 dicembre 2013

AR is correct. There are a few public access L2 chargers out there that deliver 70A. But, with the exception of Tesla's Roadster, Model S, soon to be Model X and the RAV 4 EV, does anyone know of another EV that right now has an onboard charger that can take more than the 6-7kW that the typical L2 public access charger provides?

Tesla's DCQC technology is truly revolutionary, but even Tesla has acknowledged L2 has it's place. If the 40kW Model S had ever gone into production, it was L2 only by design and not SC capable. We don't know much about Model E yet, but when Elon and other TM folks talk about it conceptually, I get the sense that it will be more of a town car than a X-country road warrior, perhaps with a power train and battery similar to what they provide for the RAV 4 EV. Chances are it will also be L2 only.

jat | 29 dicembre 2013

Generally you will get 208V @ 30A, though some Blinks limit the current to 16A to avoid melting the connector. A few are at 240V, and I have run into one that only supplied 24A.

@jbunn - L2 chargers are perfectly fine where your car will be charged a long time, such as at home, work, and hotels.

dlake | 1 giugno 2014

On Saturday I did a Phx-Tucson round trip. From where I live in Phx, it's about 125 miles each way. I left Phx at about 6:15am and arrived in tucson 2 hours later going about 70-75 down I-10. From a range charge of 262 miles, I arrived with just over 100 miles remaining. Overall, the car performed flawlessly on a 108 degree day.. One wish, however, is that the AC would blow harder and colder. My 2004 Pilot and 2011 infinity have much better AC.
I found a Blink charger in the 6th St garage at U of A and began charging. A couple hours later, I looked at the Tesla app and saw that my car was charging at only 13 miles per hr! I tried to increase the Amps, but it would not go higher.
Blink should really step up to the plate and offer at least the 29 miles per hour (or more) we can get in our own garages. Sheesh!

So I moved my car to Bookmans at Campbell and Grant where the car charged at about 24 miles per hour. Mich better. Thanks Bob!

Roamer@AZ USA | 1 giugno 2014

Dlake. Is your car in range mode. Range mode reduces AC performance. I can hang meat in my pano roof car driving in AZ so you either have a setting problem or need to visit the Service Center and have it checked.

Roamer@AZ USA | 1 giugno 2014

Should have the Casa Grande charger by year end. That will solve the getting to and from Tucson range.

Captain_Zap | 2 giugno 2014

Some of the Blink charging stations reduced their power to make more money and others have not been maintained. There was a bankruptcy and a change of hands to a new owner that didn't have firm plans.

There was a segment on the local news about it. It all depends on who is running that particular charging station.

Check for updates on Plugshare for any charging station you plan to use. If you encounter a bad station or slow one, don't hesitate to make a comment on Plugshare for the traveler that is behind you.

ka9q | 28 novembre 2015

I know this is an old thread, but I have a few comments.

In the J1772 standard for L2 charging, the EVSE (i.e., the box on the wall or pedestal) tells the car how much current it can draw. This limit can vary in real time, though I've not seen that happen yet. You can NOT make a Tesla (or any other J1772-compliant EV) draw more than the limit.

Note that the current limit is not the only thing that affects charging power. US residential installations are usually fed with 240V from single-phase service while most commercial installations get only 208V from 3-phase service. This gives only 208/240 = 87% of the power at the same current.

The current limit is set by the electrician when the EVSE is installed and/or over the network. Ecotality Blink EVSEs were originally programmed with 30A limits, but defects (improper connector crimping) were discovered in a number of their EVSEs that resulted in connector overheating. These probably weren't discovered at first because the 2011 and 2012 model years of the Nissan Leaf had 3.6 kW chargers that only drew about 16A max. The first problem report, to my knowledge, came from a RAV4-EV owner. His connector partly melted while charging at 30A. I have not heard of any other damage reports but several people have reported abnormally high pin temperatures using infrared thermometers while drawing 30A.

A 6.6 kW charger for the Leaf became available starting with the 2013 model year, so this created a potentially serious problem.

When this was reported to Blink, their response was to simply lower the current limits on all their chargers. And why not? They avoided the cost of replacing the bad connectors and they could charge more per kWh for electricity sold to cars that can take a full 30A. Double win!

I got a Blink charger at home with my 2011 Leaf since it was the only option for the DoE subsidy at the time. The computer running the touch screen and network connection had extremely buggy software, so when the contract ended and the unit became mine I lobotomized it by disconnecting it from the microcontroller that actually speaks J1772 to the car. The display is dark and it's off the network, but my EVSE has worked flawlessly ever since. And it supplies 240V @ 30A to my new Tesla without any problems so far, though I intend to disassemble the connector for inspection.

The "Blink" chargers are well named -- they're almost always on the blink. Even when they work, they're seriously overpriced. I now avoid them whenever I can. Here in San Diego, NRGeVgo's chargers are considerably more reliable (though not perfect) and most sites have CHAdeMO and Combo high power DC chargers. I've ordered the CHAdeMO adapter for my Tesla but it hasn't arrived yet. It will give me extra options on road trips if I am unable to use a Tesla Supercharger.

Pluto is a Planet | 29 novembre 2015

To be robbed.