When I bought my new Grand and RM2 a couple of months ago I had a metric ton of Panasonic CGR18650CH batteries that I use in my 'other' mods, most of them fairly new, and they 'sorta' have a psuedo button top. Well a battery is a battery right? I couldn't see dropping more money on new batts as long as I had perfectly good ones. So I used them and they worked ok, I was none the wiser.
As the Reo has become my all-day-every-day-tote-everywhere vape I decided to pick up a couple of the AW IMR 18650's that Rob (and others) recommend for Reo usage this week and the difference (to me) is pretty much like night and day. Battery life seems about the same, but it's that connection when I hit the GO button, feels so much more solid and the occasional misfire is eliminated. Its like they were....made...for...each...other.
Anyways, long story short...get the batts the master says to, it does make a difference.
As the Reo has become my all-day-every-day-tote-everywhere vape I decided to pick up a couple of the AW IMR 18650's that Rob (and others) recommend for Reo usage this week and the difference (to me) is pretty much like night and day. Battery life seems about the same, but it's that connection when I hit the GO button, feels so much more solid and the occasional misfire is eliminated. Its like they were....made...for...each...other.

Anyways, long story short...get the batts the master says to, it does make a difference.