I have been doing some informal testing with my takeoff Inforce sitting on my workbench. I tested it daily and after a couple weeks with a new battery it started flickering before coming on. I tested the battery and it was at 60% on my ZTS tester. After putting in a new battery but leaving the head locked out, I would screw it down and test every couple of days for a few weeks and then return to lockout with no issue. So basically, there is not only a significant parasitic power drain, but a 60% battery isn't enough to get it to power on correctly the first try. This matches my experience with 2 different mounted Inforces over the years. This is not preferred function for a serious tool that needs to be ready 24/7.
My many X300s and TLRs all keep lighting up on the first try, albeit lower output, at even 0% battery power on the ZTS tester. This is how a battery powered duty light should work.
Great form factor and ergos, likely bad circuit design...
Dennis.
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