the ones on amazon are a scam according to the comments. well atleast one of the batteries are on amazon.
There are a lot of listings for Trustfire batteries on Amazon, and I am sure that there are some less than reputable dealers there. However, the one I clicked on (and I am sure most others as well) live up to the standards one would expect. What I can tell you is that, within two days of ordering, I received exactly what I ordered, and when I charged them up and put them into my sabers, they worked just like they were expected to. I would say I got my money's worth. It is just an option you can explore if you choose to.