I'm testing the ZMax at the moment, so far so good. I'm impressed with the wattage function very handy feature in fact I don’t even set the voltage now. I just set the device to the wattage I like which is currently between 6 - 8 watts and 9 or 10 watts after a pint lol
The quality feels excellent almost on a par with the Provari in feel and looks. The Provari is heavier which I like but the Zmax is slimmer which I also like lol
One big advantage with the Zmax other than the wattage is the ability to take ego style atty's without needing a 510 to 510 adapter. On the Provari I would break these adapters all the time(provari in pocket sit down and atty would bend at the 510 adapter and eventually they would fall apart or stop making contact). I usually go through 2 -3 adapters a month lol so thats a big plus for me that you don't need them anymore.
Another Zmax plus is the ability to stack batteries (to some this is a big no no) but providing the bats are purchased at the same time and replaced as a pair you should have no problems (well thats what it says in the manufacturer’s instructions) TBH though I'm using a straight 18650mah. I will be testing the stacked batteries at some point but as I'm comparing against the Provari I thought it would only be fair to use the same bats in both.
So far the Zmax is a cracking device. Lucky Provari isn't owned by Apple though, as I think there would be an almighty court case after all its got round corners and uses a battery
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