Just wondering if anyone has tried using a 10440 battery with the Coast Mini Tac flashlight? (this is the AAA free light they were giving away) If so, how did it work out?
Mine makes a loud whining noise with a LiFePO4, and I wouldn't try it with a LiCo or LiMn cell. It's quite bright, but I don't think it'll last long. YMMV. You might get a stealth blaster, or a smoking flashlight with yours.