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#1 (permalink)      10/29/2015 5:49:52 PM US Central   quote/reply + tips
yolngu
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Sucks batteries to the end
Received today, very beautiful flashlight Nitecore like all I had.
Tested with purple efest, batteries measured at 2.25V, after removal of the EC11 !!!
I'll do a second test, but it may damage the batteries ...
#2 (permalink)      10/29/2015 5:54:39 PM US Central   quote/reply + tips
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Nymzavril
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So no internal cutout? I always use cheap low drain protected cells in torches, so I don't know whether protection is usually found on board. I would have guessed that using protected cells in a torch which also has some sort of protection on board, would mess with things like it does in a Vamo?
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#3 (permalink)      10/29/2015 6:10:43 PM US Central   quote/reply + tips
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happykalabaw
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Theres usually a noticeable intensity in the output.. but yeah, a cutoff feature wouLd be nice on some of my fLashLights. >.<
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#4 (permalink)      10/29/2015 7:13:22 PM US Central   quote/reply + tips
yolngu
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This time I watched, I removed the battery when the lights went down.
Battery measured at 1.75V, I do not understand, but this is my first flashlight in 18350.
Nitecore board these branded batteries Nitecore IMR18350 but efest purple are not identical.?
Having never used this type of battery on a flashlight, I think it is a defect of this EC11, but without any certainty ...
#5 (permalink)      10/29/2015 7:44:12 PM US Central   quote/reply + tips
airbagz
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According to the specs, it has low voltage warning but it doesn't say anything about cutting off at a certain voltage. Does the red LED start blinking after a certain time? If so, it would probably be best to stop using it or put a fresh cell in it. If it doesn't blink, it might be defective.

900 lm is really a lot to ask from an 18350 cell. It won't last very long at all on high mode. You'd be better off getting (several) protected cells if you need to use high mode a lot. Or switch to a lower mode if possible. Better yet would be to use a light that takes 18650 cells so they last longer.
I just need one more flashlight. Just one. Honestly. :D
#6 (permalink)      10/29/2015 8:28:08 PM US Central   quote/reply + tips
bensooft
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i get the notion they meant this light mainly for CR123 batteries. Non-rechargeable so just run it till it dies. Li-ion rechargeables seem to be just there because they're compatible. How would the flashlight know which kind you've installed anyway. Going to have to rely on there being protection circuitry on the li-ion battery itself.

They do say stuff abt there being a voltmeter on board. i wonder if it's easy to access and read.
#7 (permalink)      10/30/2015 12:06:34 AM US Central   quote/reply + tips
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OlaAmund
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It flashes to indicate battery voltage when you unscrew the batterytube a couple of turns and screw it in again, example 3.7v = first 3 flashes then 7 flashes with the red led.
#8 (permalink)      10/30/2015 12:23:24 AM US Central   quote/reply + tips
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TheRedlines
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It be kind of upset if these didn't allow me to get every last drop off juice from my batteries. Batteries aren't cheap.
#9 (permalink)      10/30/2015 12:50:45 AM US Central   quote/reply + tips
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Vapor
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I thumbed through CPF and did not find the answer for your problem but, did run into these two posts:

Confirmed - the EC11 has a higher parasitic drain if the light is not used at least once after inserting a battery.

All readings were taken with the same DMM, around the same time of day in a room that had air conditioning set at around the same temperature.

Date: voltage
9/20: 4.075v
9/21: 4.071v
9/23: 4.066v

FYI, I just emailed Nitecore to get an RMA to return my light. Huge parasitic drainage using AW IMR 18350 800 mah batteries. Pretty much like what others have posted. The drainage occurs both with the light turned off and also in the lockout mode where you simultaneously press the On/off button and Mode button when the light is turned on.

I might also say that when I first got the light it would not turn on until I put some Nygel on the threads. No biggee, but still a red flag to me. I like the light, but now that it has ruined two AW 18350s, this is unacceptable. I know I can lock out the light functions by unscrewing the tailcap, but I should not have to do that. Will report what happens after all is said and done.

^ In other words it drained two of his cells without even turning on the light.

Edited on 10/30/2015 at 12:52 AM. Reason:
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#10 (permalink)      10/30/2015 1:21:59 PM US Central   quote/reply + tips
yolngu
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Thank you to all.
Nitecore I use for quite some time.
Yes I know battery indicator flashes red when battery inserted.
I do not use 900 lumens but it can be useful to time, normally I use a max 160 lumens and 300 lumens.
The problem with this torch, she does not cut a 3.5 volt if it stays on.
If on / off about 3.5 volts, it does not allow all modes but continues to operate without any protection for the battery continues to descend up to 1.75 volts ....
CR123 ok to use from time to time, but for daily use, garden, cellar etc ... these batteries are very expensive and not eco ...

The size is ideal, but not want to destroy all my IMR18350
I am sad, but'll probably replace it with a larger one, with batteries 18650
#11 (permalink)      10/30/2015 3:41:38 PM US Central   quote/reply + tips
bensooft
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--Perhaps use it with protected 18350's? That'll keep the battery voltage from going too low.

Can't find specs as to what the max battery length it'll accomodate.