I can answer.
"Reputed" to be 90mAh.
Most new vapers "draw" for between 2.5 and 3.5 seconds.
That will give you around 100 puffs. 100 puffs could last a few hours or even half a day.
it produces as much or more as any other cig-a-like on the market, in the beginning. Unfortunately that vapor production decreases quickly.
NJOY claims that each disposable lasts the equivalent of 2 packs of traditional cigarettes. Nonsense. This isn’t close to being true. I’m not making this claim from using a single NJOY King; this is after vaping 4 NJOY Kings.
User #1 – 91 puffs – official time of vaping – 2 hours 5 minutes
#2 – 88 puffs – official time of vaping – 1 hour 20 minutes
#3 – 112 puffs – official time of vaping – 2 hours 33 minutes
#4 – 144 puffs – official time of vaping 1 hour 55 minutes
So, there we have. It does NOT do 2 packs of cigarettes. (in puffs)
It does not give the user even 1 pack of cigarettes. (in Nicotine).
There we have it.
A Shame really, as Njoy are not owned by a Tobacco company.
Their products are even worse.