yes this is a nice setup too, i forgot this oneI would definitely suggest the IPV3 Li. I've got both that and the ipv D2 and the D2 just doesn't pack nearly as much of a good punch which if you're doing rebuildables eventually and subbing. Worth noting the ipv D2 temperature sensing doesn't work nearly as well either but I love my IPV3. You can get 4 LG HE2 18650s for under 25 on amazon and I've found them to have pretty decent life too.