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Discussion Starter · #1 ·
I'm looking for a Level 2 charger for a second location.
Love my Tesla MU 2 and Tesla Tap set up but tired of dragging it with me every time I go to this place.
I've done quite a bit of looking but haven't found exactly what I need.
Before I build one through OpenEVSE I thought I would see if anyone knew of one already on the market.

This is what I would like:
  • 40amp eventually but default to 24amp now.
  • Wet location
  • 35ft J1772
  • 10ft plugin supply with 10-30 plug (can work around this length)
  • Nothing fancy like WiFi
Would like to keep around $400.....

Thanks!
 

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You aren't going to find something to meet all of those requirements. A 10-30 plug can only provide 30A max, 24A continuous. It will not be able to go up to 40A. If 40A is truly important to you, look for one with a 14-50 plug. That will give you 50A max, 40A continuous.
 

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For a 40 amp unit you need a 50 amp service. Also the length of the plugin supply cord is limited to about 12" by standard (assuming you want a UL approved EVSE). FYI the charger is in your car. What you are looking for is an EVSE (Electric Vehicle Supply Equipment) that your car plugs into.
 

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Discussion Starter · #4 ·
I realize that I can get a max 24amp on a 10-30. I might eventually upgrade to a 50amp circuit (just a matter of pulling new wire and changing the outlet and breaker) hence my desire to support 40amp for the future. Like my Tesla device, I would expect to change to a higher rated supply cord if I went to 40 amps. Didn't realize the supply cord was limited to 12". Bummer. And yes, my terminology is incorrect (again) regarding the use of the word "charger".
 

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"...just a matter of pulling new wire and changing the outlet and breaker ..."

I'm assuming that the 30A circuit is already in place. Conduit diameter is another consideration. Pulling oversized wire into an existing conduit is a PITA, and the result might not be safe.

If none of the power routing is done yet, then by all means run the 50A circuit and put a 14-50R at the end NOW. The incremental cost difference is very likely minimal, depending on the length of the run. It's pretty easy to change the plug on an EVSE to a 14-50P. I did this on all of my EVSEs, and extended the power whip to about six feet. Doesn't meet NEC standards (12"), but I used a flexible cable that was a full gauge larger (one number smaller) to make up for any additional cable heating losses. Works like a champ, and makes it more useful as a traveling backup.
 
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