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Did a Battery Mod on my Mark III today that I am quite happy with. It is just another take on how to do it.
On the other mods I have seen the battery doors bulged out becuase the 9volt batteries are too thick to really fit in the battery compartment. So.....I got real bold and cut the bottom of the battery compartment out to allow more depth for the 9 volts. The plastic casing is 3/32" thick.This allows just enough added room/depth.
As the casing is made of ABS Plastic it is easy enough to find a sheet/scrap of flat ABS to glue back on the inside of the detector. This is of course to keep the 9volt batterys from falling into the detectors circuit board. It is important to use ASB Glue which is easily aquired at the local hardware store. It is the type plumbers use for their black drain pipes.
With the added thickness of the glued on ABS sheet inside the detector there is still enough room for the circuit board to go back in. Care must now be taken though when putting the detector back together so as not to pinch any wires that lay along the circuit board. Another very thin piece of plastic is a good idea to lay between the wires and board as added protection.
As can be seen in the middle pix I also installed a pair of battery posts for the 9 volt batterys that are hooked in parellel. For the 12 volt string of battery connectors I made use of the existing posts. It worked out perfectly.
What I really love about this method is there are no funky 9 Volt clips and wires hanging out. I have always had trouble with those 9 volt snap on clip's wires breaking eventually. Also the doors fit back on just right. No more bulging battery doors.
For those wanting to do this type of mod there is plenty of info on Carls site including lots of input from George Payne. You'll want to read it so you get the correct battery strings. We wouldn't want to accidently fry one of Georges exceptional detectors would we???
The following PIX are the finished set up.
On the other mods I have seen the battery doors bulged out becuase the 9volt batteries are too thick to really fit in the battery compartment. So.....I got real bold and cut the bottom of the battery compartment out to allow more depth for the 9 volts. The plastic casing is 3/32" thick.This allows just enough added room/depth.
As the casing is made of ABS Plastic it is easy enough to find a sheet/scrap of flat ABS to glue back on the inside of the detector. This is of course to keep the 9volt batterys from falling into the detectors circuit board. It is important to use ASB Glue which is easily aquired at the local hardware store. It is the type plumbers use for their black drain pipes.
With the added thickness of the glued on ABS sheet inside the detector there is still enough room for the circuit board to go back in. Care must now be taken though when putting the detector back together so as not to pinch any wires that lay along the circuit board. Another very thin piece of plastic is a good idea to lay between the wires and board as added protection.
As can be seen in the middle pix I also installed a pair of battery posts for the 9 volt batterys that are hooked in parellel. For the 12 volt string of battery connectors I made use of the existing posts. It worked out perfectly.
What I really love about this method is there are no funky 9 Volt clips and wires hanging out. I have always had trouble with those 9 volt snap on clip's wires breaking eventually. Also the doors fit back on just right. No more bulging battery doors.
For those wanting to do this type of mod there is plenty of info on Carls site including lots of input from George Payne. You'll want to read it so you get the correct battery strings. We wouldn't want to accidently fry one of Georges exceptional detectors would we???
The following PIX are the finished set up.