i have received this charger a few days ago - and i can attest it seems to not charge completely.

with this charger, i charged an ego. the light turned green and i let it sit for another hour. hour passed and it was still green. so i took it off and put the ego on an old ego charger, the light was red for another 10-15 mins before that turned green. im assuming this ego charger has "super protection" as to NEVER full charge an ego incase of slight over charge/explode.