i bought a kgo set a month ago or so. yes the newer (version 2) are different from the version 1. v2 does not have pulsating power going to the carto/atty of choice, rather its a linear power (so i was told by the vendor).....pwm?
the v2 batteries (both of them) would start bliking after 10 minutes after a full charge, i clicked the button 5 times and kept on vaping. i had to do this about 20 times before it finally died. i contacted the vendor and was told i am the only one with this problem. now after having had it this for a month, i am taking 2-3 second drags and the led doesnt give me the evil blink. if i take puffs longer than 4 seond, it will blink 5 times. these are supposed to have a 10 sec cut off but that is not the case. i was very surprised to hear that i was the only one with this problem, especially since i exchanged the first set for the very same reason. i emailed the vendor that these replaced batteries are just as faulty as the first set....i also told him that i wont be replacing them since (more than likely) they are all the same.
lesson learned, i like the form factor and size of these (1300 spinners are too long for my taste) they upgraded something that was working to the point of not working good at all. i wont be buying these again.