Any more capacity in RCR123 / 16340 size batteries ?

dimmer

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When I first tripped over CPF and experienced my epiphany, 18650 capacity was about 2200 mAh. 18650 capacity is now at 3400 mAh or better. My old AW 16340's are showing their age. There doesn't seem to be much ( or any ) increase in capacity for that size as opposed to what we have seen for the 18650. Am I missing something or is the 16340 to be obsolete ?
I could use some enlightenment. Thanks.

dimmer
 

ChrisGarrett

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It's not obsolete until people stop buying small form-factor lights.

Granted, we don't see capacity gains all that often, but two spares in a plastic snap case take up little real estate, so I don't worry about capacity.

Chris
 

StorminMatt

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I would say that the CR123 form factor is somewhat obsolete. In many ways it's really a holdover from the days that it was the only option if you wanted a small battery with a higher voltage that wasn't a low capacity stack of button cells. But with Li-Ion batteries today, ypu can do better in terms of capacity. This is not to say that CR123 lights are obsolete or pointless. Just that there are better battery options in other sizes, including 14500s.
 

Kestrel

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Without a 14500 3V Lithium Primary, I can't imagine CR123's (and IMR 16340's) losing their popularity.

I'm actually just about to pick up ~a dozen more CR123's and a pair of IMR16340's for some car lights - LiCo's aren't a good choice for long-term car storage w/ high ambient temps.
Furthermore, 1.2V NiMH LSD's just can't do the higher voltages & higher wattages of our most recent high-performance setups.

When the first IMR cells came out, the LiCo RCR123's were definitely obsolete IMO once folks realized the advantages of the IMR chemistry in such a small cell.

3.7V IMR 14500's should have been a game-changer when they came out a few years ago, but I see less lights (or users) utilizing them than I would have expected.
 
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reppans

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Without a 14500 3V Lithium Primary, I can't imagine CR123's (and IMR 16340's) losing their popularity..

For those in the US, we can get Titanium Innovations 3V lithium manganese dioxide "CRAAs/14505s" which has the same chemistry/capacity as a CR123, but it is a monopolistic product. 14500s have about 20-25% more capacity than 16340s.
 

ElectronGuru

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There doesn't seem to be much ( or any ) increase in capacity for that size as opposed to what we have seen for the 18650. Am I missing something

This question comes up about every 6 months. And almost never about the same size, twice in a row. There are over 10 standard and non standard sizes of lithiumion cells and only one has show dramatic capacity increases in the last several years. All other sizes have stagnated.

Panasonic owns the technology that makes the 3400 possible and Panasonic has no interest in using that technology to make sizes other than 18650. Because of this, all other sizes are now disproportionally under capacity. 16340 are just one of these and show no special lack of attention vs other non 18650.

This is not likely to change until Panasonic changes its mind or other companies are allowed to copy their tech.
 

StorminMatt

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There are over 10 standard and non standard sizes of lithiumion cells and only one has show dramatic capacity increases in the last several years. All other sizes have stagnated.

Not quite true. 26650s have seen a significant jump in capacity lately. We now have 5000+mAH 26650s, which is something we didn't have a year ago.
 
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