I had mine in the freezer because thermal expansion of brass is greater. Could have made a difference, not sure. Getting that pill out was extremly difficult, but I had to try it.
I might be completely wrong, but in theory heat lets brass expanding more than titanium. Youāre weakening red threadlocker on the other hand. Not sure.
In the end, it was brute force and luck that the pill didnāt broke I fear.
The brass pill in the newer version is not press-fit. Itās screwed in with a small amount of glue. I muscled mine out with some 3M grey grip tape and pliers.
I donāt have a D25A, only the C versions (which open no problem from the bezel), but, if the heat or the cold donāt work, acetone is worth a try.
This is how I opened my old Bitz. Boiling the head for hours did not work, freezing it for days neither.
Anyway, I can assure you that acetone will not attack aluminum, titanium or bronze. However, beware the plastic component of the driver.
Happy modding!
D25A runs on AA, not AAA battery. The newer D25As (versions from 2014 and beyond) also support li-ion and function with all modes working properly on 14500. Earlier versions of D25a will work on li-ion at min and max, but intermediate modes donāt work.
Same applies to the D25C, which is designed for CR123, but for the 2014 and beyond versions fully support li-ion 16340.