These batteries,
in this device, are basically subjected to battery hell every time the thing is turned on; the demand for fast/high temp is not easy to supply.
Yeah, I dunno. I have a feeling the hopper is pushing them past their limits, they shouldn't degrade this much this quickly. In comparison, all of my 18650 batteries have gotten at least 20x more use pulling 10A+ and they all still work well and I can get several bowls out of them. I cannot stress enough how little I use my hopper, and yet all 3 batteries are useless.
There's no battery as small as the hopper's that can provide the 10-15A the hopper needs. I know HL gets these custom made but if there aren't any on the market that meet these specs, there's a reason for it. And with the poor performance I just find it hard to believe that the Hopper isn't pushing these things past where they should be at the expense of battery longevity.
I probably will order more batteries but I see myself using the hopper even less than I do because I don't want to be buying these every few months when no other vape I own requires that.