Glutton
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- Aug 5, 2009
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Re: Lasers!!! Beam Expander!!! an more!!! ***prices reduced and items added***
Oh cool I never knew that. Very useful thing to know.
There's a quick way to figure out battery size numbers.
It's DD-LL-0, or Diameter, Length, trailing "0"
So:
14500 (AA) = 14mm diameter, 50mm length
14250 = 14mm diameter, 25mm length (so, as mentioned, half the length)
Going the other way around:
AAA batteries are 10mm diameter, 44mm length, thus called "10440"
CR2 batteries are 15mm diameter, 27mm in length, thus called "15270"
Or the other other way around:
We're all familiar with 18650's. Following convention, their dimension should be 18mm diameter, by 65mm length.
Oh cool I never knew that. Very useful thing to know.