Just got my X2 900mAh as well as a few X2 clearos and a T3. What a difference from the cigalikes. Plenty of vapor and flavor. So far I have tried one of the X2 clearos, a V2 Liquimax and a CE3 clearo. Love it!!! This battery really breathes new life into the CE3's which I was really not liking. This has opened up a whole new world. Can't wait to start the day tomorrow with a full charge and tank to see how long they last. Only downside I see is I am gonna need alot more juice.