Arisaka

Hi new memeber I've been having a problem with two of my e cig batteries. I have an ego T upgrade and a battery from a vapor store in the mall. They both are fully charged they turn on also but when I put my tank on with liquid they do not produce smoke and don't do anything. I put my tank on a friends battery and it worked perfectly. I'm going on a road trip soon and do not have any money to buy a new battery please help!! Thank you!