So I've had my Ego-T battery for quite a long time, so maybe its just getting old, but it seems to get hot really quick. Its not like hot to touch but after about 10 puffs it gets quite warm. Maybe I'm just paranoid and this is normal, idk
Might also just be that I like to hit it 10 or so times, set it down for 5 mins then go right back to puffing, then take like an hour or two break.