i have owned a evic vt for about 2 years now. I got it just for fun and used it for about a week. Within those 2 years i have picked up smoking and i desperatly need to quit so ive taken up vaping for a way to stop smoking cigs, its been 2 weeks and i dont wanna go back. Anyways im just curious what kind matinence i should do on the battery or whatever, being thats its 2 years old i dont want it to blow up. HELP!