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Hi2all
I started a thread titled April Fools over in General but I thought it might make more sense to raise the question here.
Basically one of my FlexDrive-based reds "shut off" all of a sudden, what is considered normal operations (I forgot - hence the post title, "April Fool's" ) So I took out the battery and measured only 0.18V with my voltmeter. I then put in a (less-than) fresh battery and a few mins later that one also dropped to 0.18V... The batteries in question are the well-known Trustfire protected "blue-wrapped" 3.7V 900mAh 14500s.
Anyways, since the second battery was not exactly fresh, I decided to charge both of them overnight with my UltaFire 14500 charger and both read around 4.8V the next morning. I placed one in a 14500-based CREE P4 flashlight and the other in my Red and ran them both through a few duty cycles (90 on, 2-3 mins off) and then took out the batteries and measured them both at around 4.6V (the CREE having actually used up a little more).
The point of this exercise was to determine if the FlexDrive was quasi-fried and was draining the 14500 at an alarming rate, which seems not to be the case. A member however suggested that a reading of "0.18V" suggests a dead battery but as I write this, my CREE is still going strong...
So would you say that the Flexdrives are so efficient that they can really drain a battery to that level?
Is it possible that the drive can "short out" and all of a sudden still manage to provide power to the diode but at the same time, deplete the battery at a much higher rate... ?
The laser in question is housed in a Romisen host and has a "sealed" module. Thus there is no visible spring an no visible chance of some positive section touching the case-negative host...
I'm sorry for what may be elementary questions to the DIYers but I have very little experience in this area.... :-[
Thx2all in advance
I started a thread titled April Fools over in General but I thought it might make more sense to raise the question here.
Basically one of my FlexDrive-based reds "shut off" all of a sudden, what is considered normal operations (I forgot - hence the post title, "April Fool's" ) So I took out the battery and measured only 0.18V with my voltmeter. I then put in a (less-than) fresh battery and a few mins later that one also dropped to 0.18V... The batteries in question are the well-known Trustfire protected "blue-wrapped" 3.7V 900mAh 14500s.
Anyways, since the second battery was not exactly fresh, I decided to charge both of them overnight with my UltaFire 14500 charger and both read around 4.8V the next morning. I placed one in a 14500-based CREE P4 flashlight and the other in my Red and ran them both through a few duty cycles (90 on, 2-3 mins off) and then took out the batteries and measured them both at around 4.6V (the CREE having actually used up a little more).
The point of this exercise was to determine if the FlexDrive was quasi-fried and was draining the 14500 at an alarming rate, which seems not to be the case. A member however suggested that a reading of "0.18V" suggests a dead battery but as I write this, my CREE is still going strong...
So would you say that the Flexdrives are so efficient that they can really drain a battery to that level?
Is it possible that the drive can "short out" and all of a sudden still manage to provide power to the diode but at the same time, deplete the battery at a much higher rate... ?
The laser in question is housed in a Romisen host and has a "sealed" module. Thus there is no visible spring an no visible chance of some positive section touching the case-negative host...
I'm sorry for what may be elementary questions to the DIYers but I have very little experience in this area.... :-[
Thx2all in advance