Its been a long while since Ive vaped. I know Ill be a mtl or at most a restricted dtl vaper. I would like to get a mod that is tried and proven to last without the fire button failing after 2 months, a mod that i could vape while using the usb charger, and something that would last a half day or so on a charge. Size, weight, type and # of batteries isn't critical. Just a mod that is durable that I can set at a wattage and forget it. If you have a suggestion please throw them out. thanks