I have 4 - 900MaH DAVs and 2 - Zeus's.
I am disabled and spend most of my time just sitting and these have worked wonderful for almost a year now.
But my wife was not pleased with the way they stuck out of my shirt pocket on those occasions when we went out for something.
So---I bought 2 - 650MaH "shortie" DAVs.
Got them yesterday and topped off the charge.
Used them most of the day and they went to "blink" at almost the same time.
Yes--I know not to do the "blink" thing, but I wanted a baseline for how long they might last.
With the reduced amount of vapeing when we are out, these will fill my needs quite well.
And--they fit in my shirt pocket much better without sticking out so much.
"Happy Camper" here