Those are pretty close. I also found the 2800mA rating. But because the label didn't match exactly I wasn't sure. I'm thinking the U72 or the 2E617 might be some sort of date code. When one doesn't know - the best thing to do is to ask.Hello,
Could it be like this cell?
https://secondlifestorage.com/showthread.php?tid=2572
https://www.alibaba.com/product-detail/MOLI-ICR-18650M-2800mah-rechargeable-lithium_60280581796.html
Bertus