Very interesting and odd thing I just noticed. I charged my car at Barstow and I hear the AC compressor and fans running full speed after 20 min. I get in the car, turn on the AC and now the AC compressor and fans slow down significantly. I watch the charge rate but it's not going down. As soon as I turn off the AC the compressor and fans start kicking in again! That's not what I expected! That would mean the car switched off the battery cooling as I turned on the AC.