The batteries you're using worked fine for me when I was using that mini. I had 2 AW's as well and found the Efest lasted longer than the AW's and the Efest was also the only thing you could buy locally here.
They never let me down in my Mini's and in fact, out performed my AW's.
I had the aw blacks before for my 18650 and they were way way too long for the woods and way to long for the metals. Careful with them TimYep I would stick with the AW IMR that is recommended ....... that said I still buy and use the previously recommended battery before the red IMR's were even born. The AW black 14500 ...... they have always performed better for me ...... But I can't really recommended them because they are not the current recommended battery
I had the aw blacks before for my 18650 and they were way way too long for the woods and way to long for the metals. Careful with them Tim