<~~~ BEYOND frustrated. I got my Zmax a couple of days ago but we had to order the batteries elsewhere because mad vapes was out of them and they STILL haven't come, 4 days after being shipped. We ended up buying some from someone else so we could actually use this. Well we followed the instructions but this thing only worked for a little while and now nothing, even after changing to a new fully charged battery, when the button is pushed it does NOTHING but light up. And no it's not in standby. The batteries work enough to light up the display but not enough to actually make it work and it is fully charged! The battery in question is a 18650 rechargeable 3.7 volt NCM 1800mah battery. Could the battery type be what the problem or is it just my luck in overdrive?
You have to use IMR batteries!