olight Sr 52 observations and questions

Hi everyone I'm new to the forum but I read the reviews and try and learn without without interrupting you folks But I hope someone can answer a couple of questions. I have a Olight SR52 and 3× 3400mah 3.7 volts olight batteries that have been cycled 3 times now. And I get almost 4 hours before the sr52 in decades it's time to charge up. Last night was very cold minus 14 degrees and I started on full charged cells 4.19 volts in all 3. But a little over 2 and half hours I noticed the light was getting dimmer so clicked low medium. . No high and saw it was flashing red so checked the batteries 3.17 volts for 2 of the 3.21 for the other. So can anyone tell me dose the cold drain batteries faster ? And one last thing what is the lowest I should let my 18650 get before I charge them thanks for any help regards PCH

PCH said:

So can anyone tell me dose the cold drain batteries faster ?

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Yes. (And yes.)

And one last thing what is the lowest I should let my 18650 get before I charge them thanks for any help regards PCH

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Common wisdom seems to be 2.7 volts for the common types of lithium-ion cells.

minus 14 degrees? Holy shnap! Ive used my SR52 in the upper teens before and it did just fine

"Last night was very cold minus 14 degrees" You at the North Pole?? Is this Santa Clause?? :santa:

With out looking things up, At those temps I would be surprised they worked at all. Extreme temps can put a serious hurt on the performance of any Li-on cells.

FYI: It was 80 degrees here last night.

Would that -14 be in F° or C°