I was skeptical at first, but after 10 charge cycles.. I think it is safe to say this isn't a batt that will let you down provided you have a decent charger of course (I suggest nitecore chargers). I find on average this batt lasts 3 -4 sessions with temps from 328F - 368F which is on par with more expensive batts on the market. I find these a must have for the Davinci IQ.
my air 2 stops heating before the battery is totally dead and it takes just over 3000 mAh to recharge which is alot, best battery I have of 8 various kinds.
Pretty standard 18650 battery, would reccomend.
A solid 18650 battery compatible with the davinci iq vaporizer ðŸ‘