Sorry, I just read the comment that cleared that up. I really wanted to get back to my comment and edit it before it was replied to. Again, sorry, I know this is annoying. edit I thought that the number was the serial. I’m just stupid.
The cells that are suitable for Q8 will also do for the GT, and may have some benefits against those more commonly recommended for the GT. If I have understood the current(pun not intended) situation correctly, it seems there is only so much voltage overhead for the GT’s buck driver, resulting in longer regulated runtime at max power with high drain cells. On the other hand, high capacity lower drain cells will obviously have more total energy available, translating into better runtime at lower modes and/or at full power while dropping regulation earlier.
The Samsung 30Q is not a record holder with any(?) of its attributes, but is good, very good or excellent at everything. It has an excellent price point for its performance yet a decent capacity.
I’m going with 30Q in both GT and Q8 as I already do with several other lights. Not because it’s the best, but just to keep my toolkit simple and uniform. A GT and couple of Q8s necessitate several matching 18650 sets-of-four, and the 30Q seems like a match. Even four sets to fully populate all of them is 16 cells, and with as few as two spare sets included it’s 24 cells. 30Q at €4 or so a piece is quite an economical solution.
I too vote for the Samsung 30Q as an all around winner and will use them in my Q8. If/when I snag a GT they’ll be in that one as well. I already have quite a few of them in other lights and find them a favorite whether in a single emitter hot rod or full blown quad mod.
About the only place I actually prefer the high capacity of a B or BD is in a headlamp.
Looks like it’s the Samsung 30Q for me. Does anyone know who has the best deal for them at the moment, I need 8 of them shipped to Canada. Thx SpecialK
As implied by “can use 4 cells” both configurations are possible. The GT uses a 4S battery pack or a pair of such, consisting of 4 or 8 cells. The body tube accepts holders(s) for 4 or 8, roughly analogous to a hypothetical beer can light that could be used with four or two(but not one or three) parallel cells. The half capacity config would have less than half the runtime of fully loaded variety and won’t really be a beneficial option; the light is big and heavy to begin with and at that size is expected to maintain some serious throw for a while.