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Thread: As the forum is a little slow now... letís talk about batteries

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  1. #1

    Jan 2013
    Eastern Ohio
    Tesoro Mojave, Tesoro Golden micromax (present machines), Past: Tesoro Outlaw, and once upon a time, long, long ago... a Bounty Hunter 840. Coils: 5.75 concentric, 7" widescan, 9x8 OOR, New 7" concent
    195
    131 times
    All Types Of Treasure Hunting

    As the forum is a little slow now... letís talk about batteries

    Was wondering what brand of the 9 volt variety you have found to provide the most power for the longest time? I know the rechargeable types can Have a bit more voltage than indicated, but they can be big for the battery holder, and not sure Tesoro recommends the rechargeables.

    So whatís your preference?

  2. #2
    us
    Stefan

    Jul 2016
    S.E. Michigan
    547
    348 times
    All Types Of Treasure Hunting
    I just use ones that fit.
    Rayovac pro, Duracell copper tops and Duracell pro-cell seem to be the only ones I've found that are the same "smaller" size as the panasonics that are shipped with tesoros.
    I've used others that are a bit taller (wish they were as standardized as other size batteries) but on my 8" compadre which was my first Tesoro now has bent terminals from the larger batteries and if I do use a Duracell or rayovac I have to use a folded paper "shim" on the bottom of the battery or it doesn't make a connection.
    So I'm not sure about lasting or not but those are the three I use for that reason alone.
    Sorry I couldn't exactly answer your question but thought I'd chime in on what I found as a "danger" of using too tall 9v batteries.
    steve1357 likes this.
    -Stefan

    Makro Racer 2 - 7x11", 5.5x10", 5" DDs
    Nokta Fors Relic-- 7x11", 5.5x10", 5" DDs , 5.5x10 Concentric
    Tesoro --
    --Mojave w/ 7" new concentric
    --Bandido II Micromax
    --Outlaw- 3 coil pack
    --Deleon w/Troy super 7
    --Cutlass Micromax 8" donut
    --Vaquero 9x8
    --Cibola w/ GB and toggle all metal mod 9x8"
    --Compadre 8"
    --Compadre 5.75"

    Delta coils: 11x8DD, 5.75 Con, 10" elliptical
    Epsilon: MANY


    Tools: Garrett Carrot, Sampson shovel, Killer B Wasps, my bare hands

  3. #3
    us
    Oct 2014
    Maine
    205
    174 times
    Metal Detecting
    I look around for a brand name with 5 years of shelf life left and will grab 6 or 8 of them for the season. I'm not too fussy over batteries. Duracell, Energizer, are all decent and they all last a good while in a vaquero anyhow and I trash them when down to 3 beeps. With only 6 or, if lucky 7 months of detecting weather, i'm not concern if one particular brand lasts a few minutes or a hour longer than the next brand. As far as cost goes, under $20 for batteries for the season is cheaper than a fishing license. I say for people who are interested in detecting and ask about battery costs, probably can't afford to get into the hobby then anyhow...
    HighVDI likes this.

  4. #4
    Charter Member

    Feb 2017
    Pa
    Fisher F75 - Tesoro Tejon - Tesoro Conquistador - Bounty Hunter Tracker iv - TRX.
    1,172
    1633 times
    All Types Of Treasure Hunting
    Not to change course of thread but I'd like to hear success with rechargeable batts.

    With technology changing weekly it seems.....what's the new hot rechargeable that seems to work well?

  5. #5
    ca
    Oct 2016
    Canadian Eh
    Current:T2, Compadre, Vaquero, and 300i. Past:Whites 4000 D Series 3, Radio Shack 3001 Micronta
    598
    244 times
    Metal Detecting
    Duracell 1st and Panasonic 2nd as they that's what came with my Tesoro's and there great for the price..if I can't find a reasonable price on Duracell larger bulk size then I am off to Dollarama for the Panasonics.

  6. #6
    us
    Stefan

    Jul 2016
    S.E. Michigan
    547
    348 times
    All Types Of Treasure Hunting
    I can't seem to find Panasonic 9v anywhere besides really expensive.

    And I have great luck with my EBL 9v liIon rechargeable batteries, but the right is the problem.
    Now I just use them in my smoke detectors
    -Stefan

    Makro Racer 2 - 7x11", 5.5x10", 5" DDs
    Nokta Fors Relic-- 7x11", 5.5x10", 5" DDs , 5.5x10 Concentric
    Tesoro --
    --Mojave w/ 7" new concentric
    --Bandido II Micromax
    --Outlaw- 3 coil pack
    --Deleon w/Troy super 7
    --Cutlass Micromax 8" donut
    --Vaquero 9x8
    --Cibola w/ GB and toggle all metal mod 9x8"
    --Compadre 8"
    --Compadre 5.75"

    Delta coils: 11x8DD, 5.75 Con, 10" elliptical
    Epsilon: MANY


    Tools: Garrett Carrot, Sampson shovel, Killer B Wasps, my bare hands

  7. #7

    Jan 2016
    43
    20 times
    All Types Of Treasure Hunting
    Those eveready gold alkalines sold at dollar general tested as just as good as duracell on amp hours, they fit, and they are less than half price i think. go with those, or else re-chargeable.
    doggoneitdignit likes this.

  8. #8
    us
    Jul 2006
    Jefferson, Ga
    BH LRP 1265X, GoldBug II
    1,226
    1283 times
    All Types Of Treasure Hunting
    I don't have a clue as to whether to use these in a metal detector but I buy, from HOME DEPOT, 2 year 9V batteries for my Smoke and gas home detectors. Not sure of the MFG.
    Marvin
    The Wife says that I'm lazy.
    I
    tell her that I'm conserving energy.
    Beep, Beep.

  9. #9
    us
    Stefan

    Jul 2016
    S.E. Michigan
    547
    348 times
    All Types Of Treasure Hunting
    Quote Originally Posted by walnut View Post
    Those eveready gold alkalines sold at dollar general tested as just as good as duracell on amp hours, they fit, and they are less than half price i think. go with those, or else re-chargeable.
    Are those the same total height from terminal to bottom as Duracell?
    I've found some are way taller, some are a little taller and only a few are the same size as the Duracell's and panasonics
    -Stefan

    Makro Racer 2 - 7x11", 5.5x10", 5" DDs
    Nokta Fors Relic-- 7x11", 5.5x10", 5" DDs , 5.5x10 Concentric
    Tesoro --
    --Mojave w/ 7" new concentric
    --Bandido II Micromax
    --Outlaw- 3 coil pack
    --Deleon w/Troy super 7
    --Cutlass Micromax 8" donut
    --Vaquero 9x8
    --Cibola w/ GB and toggle all metal mod 9x8"
    --Compadre 8"
    --Compadre 5.75"

    Delta coils: 11x8DD, 5.75 Con, 10" elliptical
    Epsilon: MANY


    Tools: Garrett Carrot, Sampson shovel, Killer B Wasps, my bare hands

  10. #10

    Jan 2016
    43
    20 times
    All Types Of Treasure Hunting
    I can't really say, haven't used a duracell for quite a while.. But the eveready golds do fit nicely. I like those.

  11. #11

    Dec 2017
    SE Colorado
    tesoro outlaw, mojave, compadre, stingray, teknetics t2 and omega 8000, fisher f2, garrett ace 250, compass judge 2, whites TRX, Garrett carrot and regular
    15
    16 times
    All Types Of Treasure Hunting
    I have used two different rechargeable 9Vs, Maximal Powers and EBLs. I have had very good luck with both brands. The Maximals are rated at 550ah and the EBLs at 600. I hunt almost every day for at least 2 hours and they last for weeks between charges. I have used them in various Tesoro detectors including the Compadre, a Teknetics Omega 8000, a regular Garrett PP as well as the Carrot, and the White's TRX with no problems at all. I have never ran a timer to tell how long they last but it seems at least equal to regular alkalines. The Maximals are over 4 years old and still hold as good a charge as they did when new. One thing, when the run out of power, they just quit immediately. I have not noticed a drop in depth when they do but I always have a spare in my bag because i just let them run out and do not charge after every use or once a week. I have had Duracell batteries including AAs and AAAs leak before but never a rechargeable including when I accidentally left two in a Fisher F2 over the winter until late summer. They were dead but did not leak. Overall I have very good luck with them and I am sure it has saved me many dollars over the hundreds of hours that I have detected. Just my opinion.

  12. #12

    Jan 2018
    2
    All Types Of Treasure Hunting
    I also use the EBL LION 600Mah 9V batteries. I bought them on Amazon. 4 bay Charger and 4 pack of batteries. $24.00. They get good reviews from what I saw. Using them has been uneventful. Which is good. They charge and they power my Mojave with no issues. I will say that it takes a while for them to reach full charge. That is probably also a good thing. They fit in the compartment easily. For my Deleon, I use Panasonic Eneloops. Good batteries also. I already had the Eneloops from my photography equipment.

  13. #13
    us
    Stefan

    Jul 2016
    S.E. Michigan
    547
    348 times
    All Types Of Treasure Hunting
    Eneloops are definitely #1 for AA and AAA as far as rechargeables.
    I have been running tests all year and I still have one last one to run.
    I have a set of 4 white regular eneloops that we're charged in January of 2017. I was to do a discharge test with them to see how many mAh they still have.
    I did the test for 3,6, and 9 months already. They lose more in 3 months than they do in from 3-6 and 3-9 months if that makes sense.
    After 3 months they still had 1700 (-200ish from full). 6 months they we're at 1650. 9 months they we're at 1600. All in all very respectable.
    The higher capacity the cells are the faster they lose their charge while sitting and the less recharges they can handle in their lifetime.

    Click image for larger version. 

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    I have tested many brands and capacities of AA cells. Eneloop wins all around. The black pro eneloops do hold more of a charge and if they aren't going to sit are great too. But for all around performance and charge holding, the white (or red, orange, blue, green special edition) 1900 mAh cells are the greatest for charge held while sitting and number of charges in their life (2100 but can vary with input of the charger used and some other stuff. Slower charge equals longer life)
    I wish they made a 9v :-(
    -Stefan

    Makro Racer 2 - 7x11", 5.5x10", 5" DDs
    Nokta Fors Relic-- 7x11", 5.5x10", 5" DDs , 5.5x10 Concentric
    Tesoro --
    --Mojave w/ 7" new concentric
    --Bandido II Micromax
    --Outlaw- 3 coil pack
    --Deleon w/Troy super 7
    --Cutlass Micromax 8" donut
    --Vaquero 9x8
    --Cibola w/ GB and toggle all metal mod 9x8"
    --Compadre 8"
    --Compadre 5.75"

    Delta coils: 11x8DD, 5.75 Con, 10" elliptical
    Epsilon: MANY


    Tools: Garrett Carrot, Sampson shovel, Killer B Wasps, my bare hands

  14. #14
    Charter Member

    Nov 2012
    6,852
    8715 times
    All Types Of Treasure Hunting
    Banner Finds (4)
    Duracell or Energizers. I don't use off brand batteries.

  15. #15
    ca
    Oct 2016
    Canadian Eh
    Current:T2, Compadre, Vaquero, and 300i. Past:Whites 4000 D Series 3, Radio Shack 3001 Micronta
    598
    244 times
    Metal Detecting
    My personal opinion Energizers I have not used them in my detectors but other devices they don't last long at all for me while the Duracells last longer, maybe I had run into some bad luck in buying them or they have slowly lost there power. Not sure if anyone else can share the same things.

 

 
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