Mine has a yellow sticker on the batter cage that says “UNprotected high drain”, but the label on the outside of the housing says “protected”. LOL who knows. I dont feel like taking the sleeve of the batteries that it came with but they are labeled as “arc18650h-310a”. Hope that helps.
The complete yellow sticker on the battery carriage says:
“Must use high drain unprotected18650 cells, or protected 18650 which PCB including 4 Mosfets”.
I think “which” is an Acebeam typo, should be “with”? Also, note that the photos of this sticker by the OP Maiden666 show the sticker saying “3 Mosfets”. Well, the one I have says “4 Mosfets”
If anyone finds out what alternate batteries work with the X80, please post. I tried the Samsung 20A INR18650-25R and they were just a little too short, and would not fit in the carriage without being too lose. So in addition to requiring high-drain 20amps, the X80 is sensitive to the height of the 18650. You can see this in the OP’s photos of the Acebeam 18650 next to five other 18650 types. The Acebeam is taller than three of them. I’d be willing to bet those three that are shorter will be too lose for the carriage.
I use the 30Q’s and they seem to be fine. If you’re really having trouble just get a bunch of those little neodymium magnets, they’re like 20 for a buck.
I’ve tried 30Q (flat tops)
And they DON’T work in my X80. They are very loose. The light switches off by itself all the time……
Maybe, the reason is for this is, that I got my X80 together with 4 original Acebeam Protected cells.
These are very long and fit very tight. So the springs already got compressed very much. And are now worn out a little bit…
Maybe I will add some solder blobs or boobs to my 30Qs, which I’ve bought for the X80 as spare cells……
Or I’ll use some magnets……