I've just recently started vaping for about a month now and I just bought a brand new starter kit (EGO) and it's a kangertech protank 2 with a smok adjustable voltage battery, the problem is when I first got the kit my spare coil from the kangertech didn't work when I tried switching it, when I press my button to vape it just flashes..the battery is completely charged too..I've been getting this alot from new coils I've been buying..every 5 new coils I buy only 1-2 works..the rest I just throw away..can someone tell me what's wrong? And should I buy a whole new setup? I really wanna quit smoking real cigarettes so I'll be really grateful if anyone can help me solve this.