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18650 - what are the dimensions?

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18650 - what are the dimensions?

Old 12-08-08, 02:21 PM
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SlimAgainSoon
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18650 - what are the dimensions?

After reading about all the homebrew lights on this thread, I'm thinking of giving it a go. I've got a flashlight that has givien up the ghost, but I may be able to recycle its nice aluminum skeleton.

Thinking of grabbing a high-powered LED, slap it in there with the electronics needed and an 18650 to give it glow.

But will an 18650 fit? I don't know -- I've never seen one.

What is the length and width of such a thing?
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Old 12-08-08, 03:14 PM
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Originally Posted by SlimAgainSoon View Post
After reading about all the homebrew lights on this thread, I'm thinking of giving it a go. I've got a flashlight that has givien up the ghost, but I may be able to recycle its nice aluminum skeleton.

Thinking of grabbing a high-powered LED, slap it in there with the electronics needed and an 18650 to give it glow.

But will an 18650 fit? I don't know -- I've never seen one.

What is the length and width of such a thing?

Diameter 18mm + or - 0.2 mm Length 66mm + or - 0.2mm. If you are talking an old AA flashlight it will not work. 18650 is to large. AA batteries are 14.2mm in diameter and 50mm in length.
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Old 12-08-08, 04:19 PM
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They look like AAs on steroids.

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Old 12-10-08, 11:26 AM
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What I have is a small flashlight that uses three AAA batteries, held in one of those three-battery cylinders.

I was hoping inside of the flashlight was bigger around than a single battery of this variety.

It it is not too much bigger, than I can shim it out with something, perhaps, to hold it tight. If the flashlight's inner dimensions are too small ... then into the round file.
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Old 12-10-08, 03:56 PM
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I have one of those triple AAA flashlights, but it is up at the lake otherwise I would measure it for you. I am pretty sure the diameter is large enough, but it will be to short on the length.
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