Where to find a non-standard LiPo pouch battery?

[e100]

This is a protected 3.7v LiPo cell from my bicycle LED light.
The current dimensions are 55 x 27 x 11mm and the original capacity was 2000mAh.
The black adhesive foam piece is there for padding.

It doesn't look particularly bloated so I imagine that a new replacement cell would be very similar in size, however my google searches aren't finding anything so presumably it was a custom size made for that particular model of light.

[tooki]

See the “112556” printed on it? That’s almost certainly the nominal dimensions: 11 x 25 x 56. Searching for those dimensions, or for the size code,  may be more fruitful.

[cruff]

I tried a search and did not find anything obvious. Lots of other batteries of other sizes though.

[tooki]

I found some mentions of them, so they do exist, but I didn’t search for vendors.

What certainly seems to be a lot more common is 112560, i.e. 5mm longer. OP, would that potentially work? If you’ve got those 5mm to spare, then the slightly longer version would be a simple replacement.

If not, you could sacrifice a bit of battery life and install a slightly smaller battery, like the common 102050.

[Infraviolet]

I don't believe there actually are standard sizes for pouch cells?

[e100]

What certainly seems to be a lot more common is 112560, i.e. 5mm longer. OP, would that potentially work? If you’ve got those 5mm to spare, then the slightly longer version would be a simple replacement.

An update, I ordered a 112560 battery with the expectation of having to modify the light, however when it arrived it turned out to be the same length and about 2mm thinner than the original 112556 battery, so hopefully it'll just be a simple drop in replacement.
Battery sizing is weird.

[Smokey]

Check these guys out.  https://www.dtpbattery.com/
They have a ton of stock items, and make custom stuff too.