Tony Posted October 5, 2018 Share Posted October 5, 2018 Just thought I'd post this............. I now run a 14.8v pack (4 x 18650 cells in series) which gives me a 7 hour run time. My previous version used loose cells in a holder but I wasn't happy with that. I made up a battery lead that connects directly to the battery compartment contacts with small brass "screw terminal" connectors soldered with 22AWG wire. A bit fiddly to hook up (long and narrow screw driver needed to tighten the two terminal screws) but very secure and + - leads well apart to avoid a short. I may put in place a rubber divider that further separates the +- battery contacts but the screw connectors are quite secure. The battery pack fits in snugly and does not move around at all. I deliberately made the wire lead long enough so the battery can be unplugged with the excess lead bundled inside the battery compartment. Tony Link to comment Share on other sites More sharing options...
Tony Posted October 6, 2018 Author Share Posted October 6, 2018 Just to clarify....the bare wires are soldered directly to the side of the brass screw terminals. The screw terminals have a small hole through them which slide in over the battery contacts and then the screw is tightened to secure the leads. Sliding the screw terminals over the battery contacts is a bit tricky as the contacts are kind of "L" shaped. Select a screw terminal that has a big enough hole to get over the contacts. Tony Link to comment Share on other sites More sharing options...
Joon hawn oh Posted October 6, 2018 Share Posted October 6, 2018 Hi tonyI am a South Korean detectorYou are interested in upgrading your batteryBut there's something I don't understand. How did you do the screw-to-neutral connection to the battery contact terminal? Did you rip the body open? Link to comment Share on other sites More sharing options...
Tony Posted October 6, 2018 Author Share Posted October 6, 2018 I'm not sure I understand your question...... All connections are done through the battery compartment but you need a very long and thin screwdriver to be able to reach down and tighten the screws. There is definitely no need to open up the detector. I hope this has answered your question. I don't understand "screw to neutral" ?? Maybe lost in translation? Tony Link to comment Share on other sites More sharing options...
Joon hawn oh Posted October 6, 2018 Share Posted October 6, 2018 Thank you, Tony.I think the translation is wrong because I was using Google Translator.Let me ask you another question.How did you solder the screw?I want to know more about soldering parts.And I want to know the ingredients exactly. Link to comment Share on other sites More sharing options...
Joon hawn oh Posted October 6, 2018 Share Posted October 6, 2018 How did you get soldered in the battery compartment?Can't you see the ways in the pictures?I really want to upgrade my battery.I bought the ingredients for the picture. Link to comment Share on other sites More sharing options...
Joon hawn oh Posted October 6, 2018 Share Posted October 6, 2018 Please tell me more about this area. Link to comment Share on other sites More sharing options...
Steve Herschbach Posted October 6, 2018 Share Posted October 6, 2018 Please be patient and wait for an answer. Have you never soldered electronics before? Link to comment Share on other sites More sharing options...
Joon hawn oh Posted October 6, 2018 Share Posted October 6, 2018 I was in such a hurry.My exact question is: It's deep inside the battery compartment. What tools can we use to solder that part of the body? Link to comment Share on other sites More sharing options...
Steve Herschbach Posted October 6, 2018 Share Posted October 6, 2018 Well Tony is probably fast asleep in Australia right now so you will have to be patient. Link to comment Share on other sites More sharing options...
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