Tony Posted September 14, 2018 Share Posted September 14, 2018 Well I sat down and re-visited the 4 x 18650 batteries for the TDI Beach Hunter and managed a successful battery boost.....It's a snug fit but went in better than expected. Now someone probably has another version but here is my Ghetto version ! I needed to remove most of the White's battery holder to reduce the overall height otherwise the 18650 holder would sit on the floor of the White's holder. All that's really needed is the end part to make the electrical contact. The two outer batteries are quite secure inside the detector as they snug up against the battery compartment housing. 1. Cut down AA White's battery holder 2. Trimmed down 18650 battery holder 3. Removal of two small plastic tabs from the "roof" of the detector's battery compartment (easy and very neat) 4. Bit of hot glue to bring the two holders together but doesn't need to be super strong. 5. Soldering of 18650 leads to contacts on the White's battery holder And for the record.........the depth increase on my gold ring is a solid 1.5" to 2" over the standard 12v pack. Range has jumped from 14" to 16" with GB off and everything else at max. 4 Link to comment Share on other sites More sharing options...
Tony Posted September 14, 2018 Author Share Posted September 14, 2018 I am still "wowed" by the rock solid threshold with GB Off....but it is sensitive enough to let you hear "microscopic" changes when something really deep is there.......? For the record.......the small plastic tabs that need to be removed from inside the battery compartment lie where the back end of the two outer batteries sit. Tony. Link to comment Share on other sites More sharing options...
pjrough Posted September 14, 2018 Share Posted September 14, 2018 2 hours ago, Tony said: .? For the record.......the small plastic tabs that need to be removed from inside the battery compartment lie where the back end of the two outer batteries sit. Tony. Hi Tony, my dreams about powering up my TDI BH by 6x18650 were broken by these "plastic tabs". Meanwhile I was waiting for the BH, got the job almost finished just using the SL: subir imagenes gratis .my future plans are try to please non-removable battery and charge it through the socket covered by inox bolt: Link to comment Share on other sites More sharing options...
GB_Amateur Posted September 14, 2018 Share Posted September 14, 2018 56 minutes ago, pjrough said: Hi Tony, my dreams about powering up my TDI BH by 6x18650 You're putting six of these in series? Unless I'm mistaken this would be 6 x 3.7V = 22.2 V nominal, and probably as much as 24 V when fully charged. Pretty sure White's (e.g. Tom B. here on this sight, but also I've read elsewhere) warn about using more than 18V or so when powering the TDI. 1 Link to comment Share on other sites More sharing options...
Tony Posted September 14, 2018 Author Share Posted September 14, 2018 I am guessing not all in series....maybe a 4 series and two parallel.....AKA....... 4S2P......? Link to comment Share on other sites More sharing options...
Tony Posted September 14, 2018 Author Share Posted September 14, 2018 1 hour ago, pjrough said: Hi Tony, my dreams about powering up my TDI BH by 6x18650 were broken by these "plastic tabs". Meanwhile I was waiting for the BH, got the job almost finished just using the SL: subir imagenes gratis .my future plans are try to please non-removable battery and charge it through the socket covered by inox bolt: Is this designed to be an external battery pack because I can't figure out how that will fit inside the TDIBH battery compartment ? Tony Link to comment Share on other sites More sharing options...
Ridge Runner Posted September 14, 2018 Share Posted September 14, 2018 I don’t see the gain of maybe 2 inches is worth of putting a new detector in harms way. On a beach with the waves coming in you’re going to be hard press to dig a hole 16 inches deep to recover your target. I’ve done the same to my SPP but it’s out of warranty and if I wanted to sell it, it would come to the point of having to pay then to take it. I’ve learned long ago sometimes it best to let a sleeping dog lie . I wish you all the best but I think it would serve you better to be spending the time detecting. Chuck Link to comment Share on other sites More sharing options...
pjrough Posted September 14, 2018 Share Posted September 14, 2018 7 hours ago, GB_Amateur said: You're putting six of these in series? Unless I'm mistaken this would be 6 x 3.7V = 22.2 V nominal, and probably as much as 24 V when fully charged. Pretty sure White's (e.g. Tom B. here on this sight, but also I've read elsewhere) warn about using more than 18V or so when powering the TDI. 6 hours ago, Tony said: I am guessing not all in series....maybe a 4 series and two parallel.....AKA....... 4S2P......? I thought to put 3S2P pack. 12.6 V and 5000 mah roughly ... 6 hours ago, Tony said: Is this designed to be an external battery pack because I can't figure out how that will fit inside the TDIBH battery compartment ? Tony Don´t want to modify the internal battery compartment neither to get the external pack. I always detect in the water (wading, snorkeling, diving). yesterday took my TDI BH for the first time at the beach and was shocked by its positive buoyancy, therefore just will try to pack as much as possible 18650 inside it. The compartment is huge, will try to use all available space. Hopefully I will get neutral or negative buoyancy. ... I mean don´t plan to use any battery holder, just made a soldered, not removable battery pack. As I said, plan is to charge it using external waterproofed connector. By the way I have nearly finished my waterproofed TDI SL when I saw that TDI BH is on the market. 4 Link to comment Share on other sites More sharing options...
GB_Amateur Posted September 14, 2018 Share Posted September 14, 2018 Nice workmanship on all your homemade parts. White's should hire you. ? Since you need the extra weight to avoid buoancy can you add even more batteries? Link to comment Share on other sites More sharing options...
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