elpwr
Posts: 92
Joined: Fri Jan 15, 2016 1:38 am

Re: JDapter (trademark) Tesla Charging for all

Sun Dec 17, 2017 11:38 pm

The new Tesla universal mobile connector (UMC) is what is being referred to above as the Tesla L2 mobile EVSE. It is sold only by Tesla and intended for use on Tesla vehicles only as it has the proprietary Tesla plug. You would then have to buy the J adapter in addition to the UMC to be able to charge other vehicles like the Bolt with a J1772 port.

You will end up with an EVSE intended only for Teslas and will have to always use the $250 adapter to charge your Bolt . I really don’t see much reason for doing this. You can buy an EVSE with the correct plug for the Bolt for the price of these two other components.

Tarrngtn
Posts: 59
Joined: Tue Nov 07, 2017 6:32 pm
Location: Albuquerque, NM

Re: JDapter (trademark) Tesla Charging for all

Mon Dec 18, 2017 4:44 pm

I need a book, "Charging for Dummies". With these various items, would I be able to charge my Bolt at the Tesla Superchargers? Or are we still just talking about the Level 2 tesla chargers? If with some combination of adapters I can use the Tesla Superchargers, then tell me what items you would recommend purchasing to achieve this ability. Thanks for your expertise, guys and gals.

winterescape
Posts: 158
Joined: Sun Jun 25, 2017 1:35 pm
Location: Upstate, NY

Re: JDapter (trademark) Tesla Charging for all

Mon Dec 18, 2017 5:09 pm

Tarrngtn wrote:I need a book, "Charging for Dummies". With these various items, would I be able to charge my Bolt at the Tesla Superchargers? Or are we still just talking about the Level 2 tesla chargers? If with some combination of adapters I can use the Tesla Superchargers, then tell me what items you would recommend purchasing to achieve this ability. Thanks for your expertise, guys and gals.


This page is a great reference.
http://carcharging.us/ev/bolt.php

"would I be able to charge my Bolt at the Tesla Superchargers? "
Nope just what Tesla calls "destination charging" which is level 2 or with the home Tesla charger mentioned above...

wwhitney
Posts: 135
Joined: Thu Sep 01, 2016 4:05 pm

Re: JDapter (trademark) Tesla Charging for all

Mon Dec 18, 2017 5:19 pm

Here's a 5 minute primer:

Electrical power is typically delivered as either AC (Alternating Current) or DC (Direct Current). Batteries use DC, while your household power is AC. A battery charger converts AC to DC, at the voltage required by the battery. EVs come with a battery charger in the car, allowing you to charge the car using household AC power.

Your typical "charger" is a Level 2 AC charging station. It delivers AC to the car and includes a communications protocol to tell the car how much power is OK to draw. The car uses its onboard battery charger to convert the AC to DC and charge its battery. Everybody uses the same communications protocol (J1772), but Tesla has a physically different plug from everyone else. The JDapter is just a mechanical adapter that lets you insert Tesla's plug into anyone else's car, for Level 2 AC charging. Since the protocol is the same, only a mechanical adapter is required.

Faster charging is called Level 3 DC charging and requires bypassing the limitations of the car's onboard battery charger. So the Level 3 station does the AC to DC conversion itself, and the supplied DC power is connected directly to the car battery to charge it. A communications protocol is required for the car to tell the Level 3 station the required voltage and allowable current to provide.

There are 3 communications protocols for Level 3 charging in use in North America: Chademo, SAE Combo, and Tesla Supercharger. They all have different plugs. Chademo (used by the Nissan LEAF) is a totally separate plug/receptacle from Level 2 AC charging; SAE Combo (like Bolt has) is a set of extra pins on the Level 2 plug/receptacle, and Tesla use the same physical plug for both Level 2 and Level 3. So Tesla's communications protocol includes having the car connect its charging receptacle either to the car's onboard battery charge (Level 2) or directly to the battery (Level 3).

The only interoperability of Level 3 charging currently possible is that Tesla has created an adapter that will let Tesla cars charge from Chademo stations. You attach the Chademo plug to the receptacle on the adapter, and the adapter's plug goes into the receptacle on the Tesla. This adapter is both mechanical and electronic, as it speaks "Chademo" to the Level 3 station and speaks "Tesla" to the car.

Cheers, Wayne

SeanNelson
Posts: 1462
Joined: Tue Jul 05, 2016 2:43 am
Location: Vancouver, BC

Re: JDapter (trademark) Tesla Charging for all

Mon Dec 18, 2017 8:26 pm

elpwr wrote:The new Tesla universal mobile connector (UMC) is what is being referred to above as the Tesla L2 mobile EVSE. It is sold only by Tesla and intended for use on Tesla vehicles only as it has the proprietary Tesla plug. You would then have to buy the J adapter in addition to the UMC to be able to charge other vehicles like the Bolt with a J1772 port.

You will end up with an EVSE intended only for Teslas and will have to always use the $250 adapter to charge your Bolt . I really don’t see much reason for doing this. You can buy an EVSE with the correct plug for the Bolt for the price of these two other components.

The big draw of the Tesla UMC in my opinion is for portable use. What's unique about it is that you can buy adapters for various types of 240V sockets and it will automatically switch its charge rate based on the type of adapter you've connected to it (and thus the type of 240V circuit you're plugged into). No other EVSE has this kind of simple flexibility.

And you can pay for a Tesla UMC that has been modified to use a J1772 plug, eliminating the need for a separate adapter. But the adapter is nice to have anyway since it makes it possible to use a Tesla destination charger.

These are great solutions for people who want to maximize their charging options when they take the Bolt on a road trip.

Tarrngtn
Posts: 59
Joined: Tue Nov 07, 2017 6:32 pm
Location: Albuquerque, NM

Re: JDapter (trademark) Tesla Charging for all

Tue Dec 19, 2017 12:03 am

I hate to be dense, but I am still confused. I thought the JDapter was all I would need to plug my Bolt into the Tesla Designation charging stations. If so, what is this Tesla portable UMC thing for? What charging stations does it open up that the JDaper alone will not?

winterescape
Posts: 158
Joined: Sun Jun 25, 2017 1:35 pm
Location: Upstate, NY

Re: JDapter (trademark) Tesla Charging for all

Tue Dec 19, 2017 12:13 am

Tarrngtn wrote:I hate to be dense, but I am still confused. I thought the JDapter was all I would need to plug my Bolt into the Tesla Designation charging stations. If so, what is this Tesla portable UMC thing for? What charging stations does it open up that the JDaper alone will not?


1) (jDapter) You are correct, It is
2) (UMC) is simply a level 2 charger for your home, or travel where they have no level 2 chargers but have electric outlets

wwhitney
Posts: 135
Joined: Thu Sep 01, 2016 4:05 pm

Re: JDapter (trademark) Tesla Charging for all

Tue Dec 19, 2017 1:46 am

Tarrngtn wrote:I hate to be dense, but I am still confused. I thought the JDapter was all I would need to plug my Bolt into the Tesla Designation charging stations. If so, what is this Tesla portable UMC thing for? What charging stations does it open up that the JDaper alone will not?

Tesla Destination Charger = Tesla's wall-mounted Level 2 AC charger
Tesla UMC = Tesla's portable, plug in Level 2 AC charger

Jdapter will allow you to use either with your Bolt EV. You might run into a Tesla Desination Charger at a hotel or something like that. You might run into a Tesla UMC if you are visiting a Tesla owner.

Cheers, Wayne

SeanNelson
Posts: 1462
Joined: Tue Jul 05, 2016 2:43 am
Location: Vancouver, BC

Re: JDapter (trademark) Tesla Charging for all

Tue Dec 19, 2017 5:30 am

Tarrngtn wrote:I hate to be dense, but I am still confused. I thought the JDapter was all I would need to plug my Bolt into the Tesla Designation charging stations. If so, what is this Tesla portable UMC thing for? What charging stations does it open up that the JDaper alone will not?

It will allow you to charge wherever there's a 240V plug available - at a business or RV campsite for example. There are RV campsites all over the US in locations where actual EV chargers have yet to see the light of day.

tedkidd
Posts: 30
Joined: Tue Aug 30, 2016 12:55 pm

Re: JDapter (trademark) Tesla Charging for all

Sun Dec 31, 2017 8:02 pm

If you think you will ever own a Tesla, having a Tesla EVSE and Jdapter is the way to go imo. If you want to live on the very edge of "what you need" you may be able to survive with the 110 charger that comes with the car.

I lived with 110 for 3 years, but since we got our Bolt we've had brutally cold weather, and what is usually 4 mph charging has been closer to 1 mph. With a longer range car, and really cold weather, and a girlfriend that has no willingness to wake up in deficit, running 50 amp to the driveway became a necessity.

WHY I WANT a JDAPTER:
The Jdapter allows you to use the quite substantial Tesla destination charging network with a non-Tesla.
Tesla HPWC's network, so if you think you'll have more than one car, and would like to avoid blown circuit breakers and uncharged cars, this may be important if you don't have 150-200 amps dedicated to car charging.
Tesla chargers allow automatic charge port opening on Tesla cars. Is this a small thing? Maybe. Or maybe it'll be an annoying drip, drip, drip when you don't have it.
I'd rather adapt to j1772 and have Tesla charging than have j1772 charging and adapt to Tesla.

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