I concur that Provape recommends using only the red AW IMR high drain batteries, and in fact says so at least 3 times on the product description. The Provari was designed around this specific battery after extensive comparison tests of the available batteries at that time.
However, using another high drain brand will not void the warranty. What will void the warranty is using magnets on a flat top battery to allow it to work in the Provari. So if you do not use AW IMR's, at least use another IMR or hybrid which are button top.
The green hybrid Panasonic NCR18650
PB and
PF batteries will look like the above battery. Do not mistake the green Panasonic NCR18650
B 3400 mAh with these, as they are not a "high drain" battery, which the Provari requires.
I also have one of the grey Panasonic CGR18650CH 2250 mAh batteries in rotation with my four AW's. I've not noticed any longer battery time with this battery in comparison to the 2000 mAh AW's.
