I just cooked two 801s with HV Xhaler juice in a matter of days. The other 2, I use with my concoctions, all are well below 20%, 20 being the highest. The reason why I can blame the juice is that when one atty goes, we say oh well, it's a bad atty. 2 atties go, you go WTF. What is the common denominator. All these atties are/were used on a regulated 5V box mod. My juices and atties are still performing like new, along with not only my 510s but LRs as well.
FWIW folks are going through LR atties elft righ and centre, when you read the posts, the common denominator is readily apparent, yet folks refuse to see it.
I'm tired of discussing why attys perform or not. Those are the only two that cooked since I started. the other was fried because the battery switch accidentally stayed on. Is there a corolation? Heck if I know, but if things aren't working, maybe the old polar bear just might be on to something.