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Did you convert your OEM EVSE to do L1 / L2 charging?

  • Successfully made/acquired an adapter for 2015 Gen1 and 2016+ Gen2 for L1/L2

    Votes: 45 35.4%
  • Successfully converted my 13-14 Clipper Creek to L1/L2

    Votes: 19 15.0%
  • I was not aware of these easy mods to the OEM EVSE, investigating now

    Votes: 4 3.1%
  • I've got an aftermarket L2 EVSE and keep the OEM in the trunk

    Votes: 43 33.9%
  • L1 is fine for me or I have no access to a 240V outlet

    Votes: 14 11.0%
  • I'm scared it will catch my car on fire

    Votes: 2 1.6%

  • Total voters
    127
1 - 20 of 36 Posts

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Discussion Starter #1 (Edited)
I wanted to have a single post that covers options to modify the stock OEM EVSE for Level 2 charging. There seems to be a few separate threads about this and I'd like to get this information in one place, for ALL GM products (except 2012 and older Volts, sorry! Feel free to snag a quality OpenEVSE from VegasBrad in the "For Sale" section ;) )

First off

1. Yes, this is safe (tested over and over)
2. Yes, plenty of people have done these.
3. Yes, you will possibly void the warranty of only the EVSE (13-14 for sure) and NOT the car.

Here are the cars confirmed that have come with EVSEs that can be either modified to operated at L1 and L2, or require no modifications:

  • 2013-14 Volt (4-wire Mod)
  • 2013-16 Spark EV (4-wire Mod)
  • 2014-16 ELR (4-wire Mod)
  • 2015 Volt 'Lear' (240V Adapter)
  • 2016-17+ Volt 'Clipper Creek' (240V Adapter)
I've converted my 2014 Volt EVSE to do L1/L2 and it's been working like a champ for over a year (see signature). I've also done the research and testing of the 2016 Volt EVSE in the second link in my signature. I'm happy to share 100% of my findings and aide anyone wishing to DIY these mods. I've also provided conversion services for the "4-wire mod" as well as fabricate 240V adapters for several forum members.

If you are charging your car with one of these modifications, please register your vote. The goal is for information exchange from owners that are interested in these modifications and those that have already done them. As the producer of the "4-wire mod" video for the 2013-14 EVSE and the thread that covers the 2015 and Gen2 240V adapter, I'm also available for questions here and PMs. In full disclosure, my personal goal is for people to be able to keep their cars' batteries charged as efficiently as possible and have flexible charging options available to them. The more miles we run on electricity, the less dependent we are on foreign oil. Sure, there are other reasons to drive pure EV, but those discussions can take place in other threads, thank you very much ;)

Here's the links to the respective OEM EVSEs and how to convert them to operate at L1 and L2 charging:

"4 Wire Mod"
"240V Adapter"
 

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Wish we could

Both of our Volts have the Lear level 1 evse. We also use the CC LCS20. Had we the option I would have converted at least one level 1.
 

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My EVSE was designed and built as a Level 2 from the start, so I never did a conversion, as I have no EV yet.

But I can't believe that somone voted for "I'm scared it will catch my car on fire."! GM will never allow an EV owner to get into trouble, unless the owner did something wrong. Converting the Volt's EVSE to Level 2 will not cause harm to the Volt or the owner (unless it was done incorrectly).
 

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But I can't believe that somone voted for "I'm scared it will catch my car on fire."!
To be fair, it's the only "I wanna but can't" option that isn't "no 240v available". Maybe they're scared of their insurance company using it as an excuse to get out of a potential unrelated claim. Maybe they're scared of some tradesman working on the house thinking they can plug their whatever into it. Maybe they charge outside and need a hardwired EVSE for weather, code, or theft deterrent reasons. Or maybe another family member isn't comfortable with the idea and some battles aren't worth fighting. Or a mix of any or all of the above.

Not my vote, though. I don't have 240 available. If I did, I'd probably buy another EVSE and keep the OEM one as a spare instead of doing the modification, though.
 

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Can you do this simple mod in the pic (power cord adapter) for the OEM 2014 Volt EVSE? That's the year model Volt my father has. Has anyone tried it for that year model?
 

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Can you do this simple mod in the pic (power cord adapter) for the OEM 2014 Volt EVSE? That's the year model Volt my father has. Has anyone tried it for that year model?
NO, as shown in the first post, and as many here have successfully done for a 2014 model EVSE, you will need to do the "4 Wire Mod" instead. It is shown in the link at the bottom of the first post...


and repeated here: http://gm-volt.com/forum/showthread.php?201866-Volt-and-Spark-EV-EVSE-upgrade-to-L1-L2-combo
 

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I am number 2 and I am also number 4. I have two 2013s and modified one of the EVSEs to 240v and left the other one for 120v but rarely use it (I use it on occasion when I have to have my electric heat on in the garage). I also have a aftermarket 240v EVSE that I purchased before I new about the mod or before it existed.
 

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I'm in the same garage as 2Volt. We have a 14 and a 15. I converted the L1 EVSEs from the 2014 to an L2. We've also got an L2 in the garage. The second L1 stays in the trunk of the Volt that we generally road trip in.
 

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I came very close to doing the 4-wire mod and installing a 240V outlet, but then I realized that L1 is meeting my needs, and I would gain hardly any additional electric miles, given my usage pattern. Virtually all of my home charging is overnight, which is plenty of time to fully charge on L1. No time of use rates available for me, either. I won't need L2 until I get some future vehicle with a larger battery. Or until my usage pattern changes.
 

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Discussion Starter #12
I came very close to doing the 4-wire mod and installing a 240V outlet, but then I realized that L1 is meeting my needs, and I would gain hardly any additional electric miles, given my usage pattern. Virtually all of my home charging is overnight, which is plenty of time to fully charge on L1. No time of use rates available for me, either. I won't need L2 until I get some future vehicle with a larger battery. Or until my usage pattern changes.
L1 charging is about 70% efficient, so you are burning more kWh than if you were charging at L2. Just a thought.
 

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Kind of in the middle on this one. I have a GE Wattstation, but bought a new 2015 to replace my 2012 and then bought my daughter a used 2012. So I made the switch to the 2015 so my daughter now can charge at 240. We swap her 120v charger when we need to.
 

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I have a Charge Point unit that as installed in my garage at no charge by DTE almost 5 years ago with a TOD meter system.
They have now stopped monitoring it and now the system is mine. I use my original ESVE when I need a little more charge after work for evening trips on week days, as I do not like paying the penalty rate for Juice. I also charge on a Charge Point system at work.
 

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Just a thougt, but can an adapter be made for a clipper creek lcs-20 to charge on 110? For use when you are away and there isn't a 220 available?
 

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Just a thought, but can an adapter be made for a clipper creek lcs-20 to charge on 110? For use when you are away and there isn't a 220 available?
I guess it's possible if the CC unit tolerates it, but it would also depend on which type of 240V outlet you were using, as not all types have the neutral wire which is required for 120V.
 

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I have an aftermarket L2 EVSE, but I still made the 240V adapter and keep it in the trunk with the 2017 OEM EVSE. That way if I'm lucky enough to be at a place where a 240V plug is available, I can charge in half the time.
 

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Discussion Starter #20
If you are using the OEM charge made for 120V and running 240V through it doesn't shorten it's useful life?
No, it's providing the same amps.
 
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