My first Provari is the standand size. I use both the 18490 (1100 mAh) and the 18650 (2000 mAh) with the extension cap. It's 18 months old, and before I got my Mini 6 months ago I used it all day and carried it in my front jeans pocket. I can get about 10 hours use with the 18490, all day with the 18650 battery.
I got the Mini for easier portability due to its shorter size in 18350 (700 mAh) mode. I get 5 - 6 hours time with this battery. This has become my most used and adaptable mod. I carry a couple of 18350 spares in a plastic battery case in my pocket just in case I need them while away from home. Once I am home, I attach either the Provape extender cap to use the 18490 battery, or attach two Tatroe extender rings to use an 18650 battery.
I have several AW IMR batteries in 18350, 18490, and 18650 size. I use a Nitecore Intellicharger i4 charger which has four independent charging bays.
Standard Provari with extension cap
Mini Provari in 18350 mode
Mini using Tatroe extension rings for 18350, 18490, & 18650 modes. Pics also show the Tatroe Mods wide base cap which is very pratical for top heavy RBA's.