Very interesting. On Win10 1709, 2015 MBA 13 my 250GB 960 EVO runs extremely cool; it idles at 40C and rises up to 50C when I stress it with CrystalDiskMark 2GB. Could you please download CoconutBattery and tell us the power draw when doing various tasks with the Kingston/Toshiba drives (the figure below) and the MacBook model? I get 8-9W in HS 10.13.4 normally.
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I eagerly await uintmax's battery life test with the XG4. I have seen tutorials on YouTube where people claim that there is no noticeable battery life drain with SM9
51 and rMBP because as stated above in this thread it's most similar to Apple's native UBX SSDs. 960 EVOs and 600p s are known to have higher than usual power draw based on experiences in this thread (I remember Audit13 mentioning this earlier.) If it really turned out to be the case that some SSDs have lower draw than others we should create a guide for people who need the extra battery life.