DIY alloy battery housing/torpedo

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kahless
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DIY alloy battery housing/torpedo

Post by kahless » 11 Dec 2015, 13:20

Ok peeps, i thought this was a great idea, take one Ultrafire 501d single mode flashlight unscrew the torch head, then screw on another tailcap with remote pressure switch, snip the cable on the remote switch and determine which wire is + and - with a multimeter, attach your preferred power connector. One nice little power pack, waterproof, built in switch, slips into a 25mm mount. This one takes two 18650 batteries but they have other battery types. I know sqeezing batteries internally into your build is popular right now but i prefer external housings for quick field change of flat batteries. It all checked out nicely on the multimeter with no shorts, if it did well i guess it is conveniently shaped like a stick of dynamite :shock: ImageImage
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Jirka
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Re: DIY alloy battery housing/torpedo

Post by Jirka » 11 Dec 2015, 19:13

Very clean. I too very much prefer batteries inside a rig. I can make them field-replaceable and a pair of 18650s is usually good enough even for longer hunting events. But this could be a good solution as emergency power supply to charge the internal batteries.

jax13
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Re: DIY alloy battery housing/torpedo

Post by jax13 » 02 Jan 2016, 00:04

Saw this a couple of weeks ago and thought it would be very handy... Firstly as a waterproof carrier for spare batteries and secondly, backup battery.

Very tidy, very simple to make and very happy with the end result.

Thanks for the idea!

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some bloke
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Re: DIY alloy battery housing/torpedo

Post by some bloke » 02 Jan 2016, 03:15

Very handy bolt on power supply there. :thumbup:
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fizzbangwhallop
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Re: DIY alloy battery housing/torpedo

Post by fizzbangwhallop » 02 Jan 2016, 10:43

Nice one chaps! :thumbup:

How many cr123's can you get in there? Thinking here of stacking 123's that have dropped just below the necessary to run the Drone Pro but still have plenty of life in them.

Cheers


Fizz
8-)
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A correct grip on the butt & cheekweld is imperative for accurate shooting. :crazy: :lol:

jax13
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Re: DIY alloy battery housing/torpedo

Post by jax13 » 02 Jan 2016, 12:48

It's a twin 18650 tube, does that mean it'll take 4 x cr123a cells?

jax13
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Re: DIY alloy battery housing/torpedo

Post by jax13 » 02 Jan 2016, 12:51

some bloke wrote:Very handy bolt on power supply there. :thumbup:
I've got a skeleton stock on my wmr and the stock pouch doesn't like the shape of the cheek piece so was thinking this could be mounted in a scope ring on the Weaver rail of the challenger dsa I use and sit right above the scope and camera.

I looked at the original battery torpedo a couple of years back but my old 3.5" monitor wouldnt run off anything less than 10.5v so opted for a stock pack. Seeing this reminded me about the concept and no machining is needed at all, just a quick snip and solder a 5.5x2.1 plug on the end!

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lenny.sch
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Re: DIY alloy battery housing/torpedo

Post by lenny.sch » 02 Jan 2016, 14:20

Happy new year to all.
It will work well as long as the total Battery length is enough to compress the springs fully otherwise the recoil can withdraw the batteries off the contacts and blank or reset your NV.. :? :wtf: :shock:

ATB: len

jax13
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Re: DIY alloy battery housing/torpedo

Post by jax13 » 02 Jan 2016, 14:42

lenny.sch wrote:Happy new year to all.
It will work well as long as the total Battery length is enough to compress the springs fully otherwise the recoil can withdraw the batteries off the contacts and blank or reset your NV.. :? :wtf: :shock:

ATB: len
Or just drop a heavier spring over the top of the cheap, weak, standard one. ;)

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