Blackbeard
Enlightened
Just got some new Trustfire 18650's and 14500's, the ones with the flames on the wrapper.
Had the trustfire 801 for a few months but stopped using due to inconsistent contact/powering problems. These new 18650's are slightly longer than my grey Trustfires, and seem to have done away with the problem, although they are a real tight fit in the UF-139 charger.
On the flip side I got some of the 14500's and they are smaller than the blue trustfires, even smaller than AA, so I threw 1 in the Ultrafire C3 SS($14 model) and I can now thread the tailcap perfectly on the body, and dont have to use the alkalines anymore.
Hope this helps, keep in mind the size of these 2 batteries may cause issues in other lights, but it solved my problem with these 2 models
Had the trustfire 801 for a few months but stopped using due to inconsistent contact/powering problems. These new 18650's are slightly longer than my grey Trustfires, and seem to have done away with the problem, although they are a real tight fit in the UF-139 charger.
On the flip side I got some of the 14500's and they are smaller than the blue trustfires, even smaller than AA, so I threw 1 in the Ultrafire C3 SS($14 model) and I can now thread the tailcap perfectly on the body, and dont have to use the alkalines anymore.
Hope this helps, keep in mind the size of these 2 batteries may cause issues in other lights, but it solved my problem with these 2 models