Made a GPX battery pack
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Thread: Made a GPX battery pack

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  1. #1
    us
    Jan 2011
    Southern Kentucky
    30
    33 times

    Made a GPX battery pack

    Here's a battery pack I made for my GPX. I used 18650 rechargeable batteries which is probably the most common kind used for built in battery packs like for laptops and flash lights. I used the plug off some old computer speakers that plug into a 4.2 low latency bluetooth transmitter (the white round disk). The power leads were then soldered to a Fatshark Battery Box used for powering Fatshark Drone goggles. You can use any 18650 battery holder but I liked the fatshark battery box because it has the battery indicator on the side. It's important when building an alternative battery sources to use good quality batteries and charger. The batteries are Panasonic rated at 3400 mAh. You can find batteries with higher ratings but it will be junk as 3400 is about the current max output for good 18650s. The longest I've gotten to hunt is 2 hours and I showed half charge so I feel confident I can go 3 to 3.5 before putting two more in and I have 8. The setup is extremely light and I have several bluetooth options including Sony and Minelab earphones but prefer ear buds as the sound is crisper and it's cooler in summer.


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    InAustralia.Jones likes this.

  2. #2
    us
    Oct 2008
    SACRAMENTO CALIFORNIA
    Ctx 3030...E-TRAC...EXPLORER SE...EXCALIBER II...TEJON...ELDORADO..LOBO ST...F75LTD...F70...CZ3D...XLT...T2...MXT Pro.. 1861 HALF DOLLAR
    363
    19 times
    How do you charge them?...I see how now...Thanks!!
    Last edited by mascard1; May 23, 2018 at 08:49 AM.
    JUST A BIG KID ...WITH LOTS OF TOYS!!!

  3. #3
    us
    Jan 2011
    Southern Kentucky
    30
    33 times
    I use a Zanflare LCD display universal charger. It's a nifty little charger that can also be used in your car. Cost me about 30 bucks but I can use my AA batteries on it as well as the 18650's.

  4. #4

    Aug 2019
    Bechtelsville, Pa.
    1
    All Types Of Treasure Hunting
    Hi soky, saw this from you on another site. I thought it's a great idea! Just wondering where the red and black wires connect to from the Fat Shark. Thanks

  5. #5
    us
    Garik Fox

    May 2019
    Queen Creek, AZ
    EQ800, GM1000, GPX5000
    54
    45 times
    Metal Detecting
    For the power cord did you start off with the coiltek short 5pin ?

  6. #6
    Charter Member
    au
    Mar 2016
    MineLab - GP3000, GPX4500, GPX5000
    83
    139 times
    All Types Of Treasure Hunting
    When does your compact kit hit the market? eBay store?

  7. #7
    us
    Jan 2011
    Southern Kentucky
    30
    33 times
    I just cut the red and black wires off from the box. I did use a shortened cord, can't remember if it was handmade or coiltech. It came with my detector. I have bought the materials to make my own but haven't gotten around to making them up. A good RC or electronics guy could solder one of these setups together in 15 minutes.

  8. #8
    us
    Jan 2011
    Southern Kentucky
    30
    33 times
    Well looking at my pics the cord says coiltech so I guess it is. I got another one that looks homemade. It will get this conversion as well. I haven't had them out since last winter as I don't hunt much during the summer.
    Last edited by soky72; Aug 26, 2019 at 09:45 AM.

  9. #9
    us
    Garik Fox

    May 2019
    Queen Creek, AZ
    EQ800, GM1000, GPX5000
    54
    45 times
    Metal Detecting
    Right on, that's cool

 

 

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