Picked up a couple 18350 tubes for my eVic and some UniFire IMR 18350 batteries. charged them and put one in. Puff counter said 200 puffs (expected), but at about 52% battery life it shut off. tried another battery, same thing. My 18650's shut off at about 20%. I changed the setting on the eVic to 800mah. Is this normal?
