1000 puffsI would like to see how many puffs I take per battery. Not a deal breaker tho.
I almost....almost got a vaporshark, but that idea passed away after reading the multiple glitches with Evolve's chips. Maybe at a later date I may consider it.
My unit only came with 1 battery and it does last awhile. I will probably just keep 1 battery for now. I have 3 different mods I like to rotate during the day.
I am with you, I was annoyed by that because I also want to monitor how many puffs I am getting per charger cycle. And I wished that I would not have purchased the second battery because with all the devices that I have I really don't need the second one ... which is why I haven't used it yet

The Vapor Shark rDNA 40 that I received was problem free, and I thought the chip was good. The temp protection is alright, didn't really like the Nickel wire though. The VS box is about as dull and boring as you can get. It was sturdy and very meticulously assembled, but at the same time so unimpressive to me. Just a basic black box, so you are not missing anything.