The Fred
Newly Enlightened
I don't know the complete biology of the TK12R5. 
Will there be any risk of damaging the light by using a single Ultrafire 3.7V 2400mAh LC 18650 battery?
Would be nice to know the technical specs for the driver board and the max handling voltage etc.
Untill now I have been using regular Energizer CR123A batteries in my flashlights.
I thought that maybe an upgrade to lengthen runtime was a must, however I'm a little unfamiliar with all the Li-on batteries out there and need to know roughly what chargers and batteries are a good combination for this particular light.
Thanks all!
Freddie
Will there be any risk of damaging the light by using a single Ultrafire 3.7V 2400mAh LC 18650 battery?
Would be nice to know the technical specs for the driver board and the max handling voltage etc.
Untill now I have been using regular Energizer CR123A batteries in my flashlights.
I thought that maybe an upgrade to lengthen runtime was a must, however I'm a little unfamiliar with all the Li-on batteries out there and need to know roughly what chargers and batteries are a good combination for this particular light.
Thanks all!
Freddie
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