Cylindrical Battery Size we prefer our Flashlights to have.

20700 :smiley: (not available yet)

Super Duper… viva Tesla! :partying_face:

I like many sizes, my favourites are: 26650, 18650, 10180, AA, AAA

Really depends on what light and it’s going to be used for.
Single cell lights for non edc stuff I prefer 26650 feel better In the hand than the smaller 18650 lights.
But for edc stuff are the smaller 18650 lights better, or even the smaller 14500 and 10180.


This one :slight_smile:

Depends on type of light. Multi quality 18650 cells from reputable manufacturers like Sanyo and Samsung for raw power. Single 26650 for compact power light. AA and AAA for small EDC lights.

Well, it's normal to prefer a batttery size according to the flashlight and it's use. If you want/need a flashlight monster, you can't go with 14500s!

If I could explain better the meaning of the poll (as I was thinking of it), it would be somehow like that:

  • If we could have only one flashlight that we'd have to carry everyday for everykind of use, which is the Battery Size we'd prefer it to have?

Aha. In that case most definitely AA. I’m happy with simple Eneloop, and I’ll sacrifice output obtained with li-ion.

With just one option the 14500/AA it would be the perfect fit between aaa and 18650 IMHO. Good fit in hand, pocket, and run time.

My thoughts are the same.

With 14500/AA:

  1. The size of the flashlight is very handy.
  2. It's lm/cd (for a good FL with good battery) can be more than enough for most of the cases we need it.
  3. It's runtime can be long, but even if a 14500 battery runs out, it's easy to be replaced with a Ni or even a disposable AA battery that can be found everywhere.

AA and 18650 for me.

AA for practical reasons(can use rechargeable NiMh’s, alkaline’s as well as 14500) as well as small size for EDC, 18650 for power and for winter EDC due to bigger size-weight combo.

To put it shortly:
Summer - AA.
Winter - 18650.

When I choose to use a light it’s likely to be 18650 powered. But my most used light is the 10180 on my keychain. There’s no way to choose just one :wink:

Phil

I had to go with “other”. I like AA, AAA, 18650, & 26650… just depends on the light. :wink:

18650 FTW!

small 18650 lights rule …. then… AA/14500 lights….AAA 16340/18500/18350…

18650 is multipurpose u can find dqg small and short 18650 flashlight….or just but 2 or 3 of it in series or palallel host to power EVERY LED…

and u can always find it on old laptops,on old battery drills, on an accidented tesla, on electrick bike, on power banks.

there is no need to use 26650 and ruin the standard……18650 is a standard and MUST REMAIN SO….

Well… it’s a bit difficult to find “an accidented tesla:stuck_out_tongue: in my country, but it’s easy to find AA/AAA batteries everywhere.

AAA lights are tiny

18650 lights are powerful

beyond certain limits, you cannot have both

I prefer flashlights that use form factors that are easy-to-find worldwide.

AAA (and one coin cell) light on my body.
AA (and one 9V, plus a few extra AA and AAA) light in my everyday bag.

I voted for AAA because no one else had, although it’s mentioned in several comments here.

Voted for AAA size, but AA size is also OK.

I don't really need a flashlight with super duper long throws and/or that last many many hours or days on a single cell/battery. But some of the AAA and AA based lights available now can last quite a few hours and have reasonable throw (70 ~ 100 m).

I prefer flashlights to be small, and that use commonly available cells/batteries such as the AAA and the AA. So if I need extra cells/batteries in a hurry/emergency, I just go to the nearest local store and pickup some more AA's or AAA's. Other cell/battery sizes such as CR123, 18650 and 26650 are either too expensive and/or not readily available from local stores.