Out of all the 'JunkFire' brands sold on the Hong Kong sites the Trustfire 2500 mAh are possibly most 'passable'. Not 2500 mAh, more like 2200, but they do last and do what they say on the tin. I used them at one time, not any more.
The great revelation is when you replace one of these in your favourite torch with say a genuine Sanyo, and feel mounting surprise on just how long it goes for before needing a recharge.
I expect the other surprise will be in a few years when its still going strong, like the ones in my netbook I bought SH off eBay about 3 years ago.
The expression "false economy" occurs.
I have dealt with a guy who sells on eBay as Ecoluxshop and the stuff he sells appears genuine and reasonably priced. I will stick my kneck out and recommend this seller. I use this seller if I run short and need stuff in a hurry.
My avatar is a poor likeness.