So its been hitting fine all day then i went to hit it more recently and it was being weird like i locked it or something so i had to hold down the big button until it crackled and worked. this was like this for about an hour. if i didnt keep hitting it it would lock up like that. Then now it wont work at all the battery symbol just flashes on the main screen the ohms read .25 but it has half battery . I just got a new battery today from the shop and it was working fine, also i just got this mod 3 days ago and im tottally new to vaping. thankyou!