I'm having problems with my sigelei ZTelemax. vaping on a Terminator built at 1.6 ohms, sometimes I push the button and it doesn't fire, rather slowly builds up heat. The two batteries that I have are a Sanyo ICR 2600 mAh (the pink one that comes with the eVic) and a Panasonic NCR 3400 mAh. I bought a AW IMR to see if that solves the problem. Could someone tell me what the difference is? Thanks!