I am using a EGO with a mega cartridge and Dekang USA VG liquid and this is like the energizer bunny of e-cigs. I can go a week or more on 1 fill and charge. Much better than my 901 setup which I passed onto a buddy at work. The VG liquid produces massive vapor with minimal perfumy tasts associated with Dekang PG based products. Excleent all day vape setup
