JJH said:I have also heard that there is a model U2 that has an inner sleeve that can be removed to accmodate the 18650. Does it have flat or smooth sides and a donut or no donut? Is there a way from the serial number or packaging to tell which model you are getting?
Thanks-
JJ
The U2 body went through at least 3 changes. The first could accomodate the 18650; the 2nd was the original body with a glued tube in it to prevent the 18650 from going in (but it could be removed with some effort); currently, the tube is engineered from the outset not to be able to take the 18650 (no tube necessary). I get the feeling that Surefire makes way too much money off the batteries it sells to make it easy for rechargeables to be used in its lights... just a theory.JJH said:I have also heard that there is a model U2 that has an inner sleeve that can be removed to accmodate the 18650. Does it have flat or smooth sides and a donut or no donut? Is there a way from the serial number or packaging to tell which model you are getting?
Thanks-
JJ