Olight S1 parasitic drain. Has anyone measured?

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@will34

Same thing happens to both of my nitecore e-swtch lights: EA40 and HC50.

I put a new battery in, use it for 20 minutes and find the battery depleted in a month. Because my batteries are not protected, I got ~1V cells several times. I thought the cell was dead but according to the opus 2.2 they still retain good capacity, but I’m not very sure about them anymore. I’m concerned about the EC4S I just ordered, it might suffer the same problem.

BLF comments on EC4S parasitic drain: post #268 to #278.

FlashLion Review, excerpt from this article:

“There is a low voltage warning-the light starts blinking as a Strobe,when the battery voltage is too low. As you can see from the graph,I waited at least 60 minutes for a low voltage protection,but there was no such. Battery voltage after the test 2,6V. Really low voltage. What I am observing is that the battery protection also does not trip, if the discharge current is very low.
…

—According to Nitecore the reviewed by me EC4S is a pre-release version and the parameters of the final version could differ significantly.”