Update: My Rav4 was fixed under warranty, and I got a Camry rental for a week, also courtesy of Toyota. Of course, I don't think the Rav4 had anything to do with this, and Phil's IR thermometer testing indicates at least one other Blink/Rema handle got quite hot on one pin (opposite to my pin) on a Rav4. Keep in mind, these are only 30 amp Blinks and the Rav4 can take 40 amps.
Phil's conclusion; a poorly crimped connector on the Blink/Rema charging handle.
Sept 3, 2013 - UPDATE: Rema charging handle strikes again and melts the pins on a Nissan LEAF: http://www.mynissanleaf.com/viewtopic.p ... 30#p322830
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More pics here