Want an extension "device"

lumen aeternum · Dec 31, 2016

I would like to be able to put 2 batteries in my single battery lights, sometimes. Why aren't extension tubes ///// devices available?

EDIT --

Replacing the tailcap with one that has a buck/boost circuit so you get the amps at the same voltage. Or even a mechanical method -- run a thin conductor from the - pole of the first battery back to the tail, and another from the + of the second battery forwards to the head. The batteries don't touch.

Bdm82 · Dec 31, 2016

Re: Want an extension tube

lumen aeternum said:
I would like to be able to put 2 batteries in my single battery lights, sometimes. Why aren't extension tubes available?

Single battery lights, if extended tubes are used, would be putting the batteries in series. So two 3.7V 18650 batteries lined up end to end will produce 7.4V, frying the drivers in many lights as they were designed for less Voltage.

To extend runtime without increasing V, the batteries would need to be setup in parallel (think side by side, both pointing same direction). Simple extension tubes wouldn't do this.

lumen aeternum · Dec 31, 2016

Re: Want an extension tube

Yes, I should have said "extension device." Replacing the tailcap with one that has a buck/boost circuit so you get the amps at the same voltage. Or even a mechanical method -- run a thin conductor from the - pole of the first battery back to the tail, and another from the + of the second battery forwards to the head. The batteries don't touch.

Sundancer268 · Feb 17, 2017

I believe ThruNite Archer 1A / 2A V2 has this feature where you can use one or two batteries, I think this would be a neat feature for Finex to copy if it is not patented.

Want an extension "device"

lumen aeternum

Enlightened

Bdm82

Flashlight Enthusiast

lumen aeternum

Enlightened

Sundancer268

Newly Enlightened

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