Thanks!
TK’s review quotes the parasitic drain as the following:
Parasitic drain:
- ~0.02 mA with aux LEDs off (17 years to drain a 3000mAh cell)
- ~0.06 to ~0.12 mA with aux LEDs on low mode (2.5 to 6 years)
- TBD mA with aux LEDs on high mode (my sample has different resistors, so I can’t measure)
(probably about ~0.2 to ~0.4 mA on blinky mode, or 1 to 2 years runtime)
(probably about ~3 mA on high mode, or about 50 days runtime)
1Lumen’s review also gives amp readings for the aux lights. With the aux lights off, his parasitic drain reading is 25μA (0.025mA). Only slightly higher than TK’s reading. At that rate a 3000mAh cell would last 13.7 years. On low they range from 70μA - 190μA. Again, just a bit higher than TK’s readings.
So there’s obviously a problem in your case. I have had mine on one aux mode or another since I got it. Recently I had it on voltage mode, low, for a couple weeks or so and I even used the flashlight for brief times and the voltage did not drop much at all during that time according to the Batt Check mode. I’m even using laptop cells with only about 2,000mAh. I do not have any way besides the flashlight’s Batt Check mode to check my batteries’ voltage, though.
I think either your flashlight or your battery must be defective. Can you get a tailcap amp reading with your multimeter to see how much current is actually being drawn? Also, are you sure your battery is in good shape? If it is worn out or a cheap Chinese knockoff, it might no longer be able to hold much charge.