My battery box mod TDI Beach Hunter

[sws33]

Saw a couple of YouTube videos and read a few forum post about using 18650 batteries in the battery compartment to boost the voltage, so I thought I would give it a try using the components of the box itself. The only thing I added was a engineered piece of plastic that used to be the cover for a jigsaw blade box. I'll send a picture of the voltage output once the batteries I bought are fully charged and the epoxy dries where I wore it a bit thin. I did test it with mostly charged batteries and was getting 16.04 volts. I was also able to channel it out enough that it is almost perfectly flat and the same dimensions prior to fabricating. Drops right in and falls right out just like a regular battery pack should.

 

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[Octopulse]

Excellent work on the battery case......the extra couple of inches depth on coins and rings is worth it by the extra voltage.

 

[sws33]

It's already paying off. Found a silver ring that had to be about a foot or more deep and a couple small pieces of a broken chain 8 to 12 in deep 3 feet apart. Found another nice three stone silver ring down around 18in, faint signal but repeatable and I'm sure I could have gone even deeper.

 

[sws33]

so the new battery mod is putting out 16.94 volts fully charged and lasts almost exactly 6 hours worth of hunting. I had it out 3 days ago for 2 and 1/2 hours and then two days ago for an additional 3 and 1/2 hour hunt when the detector shut itself off. It shut itself down and stop drawing power when the battery mod reached 9.4 volts.

 

[Octopulse]

Yep, my run time is also 6 hours......which is a good workout when digging deep.
Tony

 

[DirtFishin']

What is the part number of the standard battery case. I have been searching and can not find it anywhere.

 

[DirtFishin']

Are there any Canadian friends out there that can assist me in purchasing a battery case from Canadian Treasure seekers? They have a rule that they can not ship to the USA.