For these L2 chargers with 120v adapter, don't use the adapter unless your wall receptacle is decent.I have a buddy that uses this and really likes it: https://www.amazon.com/dp/B018A6QK7C
These chargers stupidly sending 16A signal all the time. Not a problem for Leaf, which limits to 12A for 120v no matter what. Big problem for Clarity, which will trust the EVSE and draw 15A+.
Your wall receptacle is rated for 15A, so meh fine? Wrong. Your wall receptacle is rated for 15A short use but only 12A continuous (>3hrs). This is call the 80% rule for continuous use.
Not saying it will burn your house for sure, but YMMV. I have the duosida charger for L1, always feel nervous for the 140 degree hot plug.
Although, after the hv range fix software update, my Clarity seems to limit the current to ~13. Still over rated, but I'm comfortable with this 10 percent overclocking.
For L2 use, totally fine. The L2 plug is 6-20, which is 20A rated. Apply the 80% rule, you have exactly 16A ampacity.
If anyone have more questions on this charger, or anything lookes similar, AMA.
Update with link: https://www.amazon.com/gp/aw/d/B07FGD5335/ The first review from Dan, that's me.
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