I've heard of it. The safe cig has been getting some good
reviews compared to the other e-cig companies. I'd imagine that the micro, would be the same as a volcano, or blu micro battery. I don't know how they can claim that the battery life will be better with a smaller battery from what you are using, but who knows? If there is a company that may be able to do it, they may be the one

I did start a chat with someone on the site, and they were not able to give me any specs for you, as they don't know any as of yet. You can give them your email address, and will email you as soon as the specs are available, though.
I like the feel of a micro e cigarette. I have a blu, and for stealth reasons, I take it everywhere. For long trips I take my inferno (ego re-branded). I love both. If it comes with a PCC, the battery issue isn't really that big of a deal. Even if the battery life is good for only 5-7 cigs worth, as some claim, the back up battery doesn't take that long to charge anyway.
All in all, If you want something that feels more like a cigarette, the micro batteries are right up your ally. I've tried one of the larger ones like what you have, and I didn't care for it. It felt like a swisher sweet in my mouth and was super heavy, but that's just me. I hated smoking 100's in analogs, too big for me haha