Originally Posted by

**Train2**
Right - with a mini, you can do 18350, or 18490 with an extension cap, or 18650 with a ring and an extension cap (or with 2 rings and the regular cap...etc).

With a standard, you cannot do 18350.

I bought a mini first, as one MAIN reason I got it was to have a more compact device. But I found I almost always went with 18490 mode (that's still compact enough!) - so my second one, I got a standard. Now I can do all three sizes - but I almost always use them both with 18490's after all. That size is just my favorite - lasts long enough for a work day, but tucks nicely into a jacket pocket...

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