Is there a battery out there that is "bigger" in size and will work with the treading of the iClear.
Yes there is. In fact, depending upon how "big" you want to go, there are several choices. Take a look at a
popular & reputable online ecig store here.
An eGo ONE is a larger version of you Vision Spinner, plus some added features.
A regulated box mod will be a little larger with a different shape format, but is still quite pocket or purse friendly. Examples are the MVP, iStick, iPV, etc. These are "regulated mods" which will have longer battery time, higher power, and built-in battery voltage and coil resistance meters included. The size and shape may appear a little intimidating to a beginning vaper, however the performance is so much better than ego
batteries. Remember, you are no longer smoking, but
vaping. These "mods" are considered the norm for intermediate and advanced vapers.
Advancing Up the Vaping Ladder
I also started out with the little 510 "cigalikes" like yourself believing that my vape should look like a cigarette. After about 2 - 3 weeks I soon realized the battery time was dreadful and there were better setups out there with longer battery life and better options for juice delivery devices.
I skipped the "ego phase" entirely and purchased a mod and was very pleased that I did. Performance was now much more important than appearance to me.
Proper Terminology: Juice Delivery Devices