The are great.
the battery itself is great and fits perfectly with an expanded batter door, but when I tried using the stock door i found that the battery was to thick to fit.
Modded a Nerf Doomlands Desolator and this battery fits in the original ”AA” battery location, with only the back of the tray cut out, and the ridges of the battery door shaved down flat with the edges, I am running the original battery door and screw, other than the paint job you can’t tell it’s modded.
It arrived just as expected
This battery is excellence in a small package, great power and fits almost anywhere in a mod.