Ok so I drove down to high desert vapes and got a few aw batts. Still disappointed with the battary life the 18490 dies after half a day. To compare I can run my ego twist vv all day.
Running your iTaste at 11W draws a lot more power than any ego battery. You're using a lot more power, thats why the battery is dying you.
if you want a great VW MOD for much less money than the Provari (and a more flexible PV) get the Sigelei 20W. You can get one for $84 at Fast Tech, about $100 on eBay, and about $120 from a stateside vape shop on the web. It's variable wattage from 6-20W and you can build coils down to .65Ω if you choose. It ialso uses an 18650 battery. Get the Sony 30A with 2600mah and you should get a very smooth, consistent, and robust vape all day. Watch PBusardo's review. He'll confirm that it's a great vape on par with the DNA20 MODs, and at a great price.
It will also blow your iTaste 134 mini out of the water in terms of vape quality. It sends a clean, consistent DC signal to the atomizer rather than the PWM used on the iTaste. I retired my iTaste 134 mini about a day after I got my Sigelei 20W. It's worth every penny. Look at the Sigelei 20W threads on the board and you will see nothing but happy campers.
Ditto the Seven-22. It's a closely related cousin to the Sigelei 20W (they use virtually identical chips), but comes in a behemoth 26650 battery tube.