George Knighton· Registered
People familiar with both GM and Clipper Creek say that the internals of the 2017-2021 Bolt OEM EVSE are very closely related to Clipper Creek.I think the Volt EVSE was using the same components as Clipper-Creek.
I have a 2020 Bolt EV, and I have three EVSE.
(1) Grizzl-E dumb unit, set to 40 amps, and the car keeps it at 32 amps, 7.7 kW. Wiring for the NEMA 14-50 in the garage was so easy that my contractor didn't even charge for it because he had all the parts in his truck.
He delivered a caution, however: There's a wide range of NEMA 14-50 available, most of which seem relatively cheap and it's tempting to save money.
However, most of these are not designed for long duty cycles that might be associated with EV charging. Don't skimp on the price of the 14-50, IMHO.
Although he had heavy wiring with him, he only had a 40 amp breaker, and if I buy a different car I'll open the Grizzl-E and make sure it's set to 32 amps. That's enough unless I do something dumb like get a Hummer or something. (Very unlikely.)
(2)I ran across a 2022-2023 Bolt EUV dual voltage charger and picked that up at a good price. Its delivers 32 amps, and I think that the 7.7 kW it provides you should be enough for anybody even though your EUV can take 48 amps and 11.5 kW.
It's a high quality unit and I'm impressed with it. The handle is rubberised and you have the feeling from handling it that it will last a long time. The plugs need to be seated firmly into the housing to avoid an error message but once you understand this, it's not a problem.
I like this a lot. However, since it's intended to be a portable EVSE, you will need to think about a wall mount for it if this is your permanent EVSE, and you might want to think about a holster, because the handle does not include a cover for the terminals.
Both these things are available on Amazon for very little money, and for most of us this is just enough.
(3)Because my car is a 2020, I still have the OEM 120 volt, 12 amp charger. I have a two plug solution that converts it to 240 volt, but of course it's still limited to 12 amps. I keep this in the car in case I need it, but it's only going to deliver 3 kW (indicated). Still, that's better than 120 volts, right?
IMHO, the best solution for the original poster is just to buy a cheap holster and cheap adjustable mount for the OEM EVSE housing, and stick with this.
Although it is only 32 amps, it is sturdy, high quality and won't tax the 14-50 if the contractor goes cheap. In my experience most of us use only about 50% of the Bolt's battery in one day, so the 7.7 kW provided at 32 amps is only going to take four hours to fully charge back the battery.