GP3000 battery options/ upgrades

[Mr Yarg]

Hi all,
I have an old gp3000 that ill be using soon.
I have 2 questions 1 been how long should the 6v 6ah battery last while detecting and the 2nd regarding the batteries them selves.
Is i possible to use a 18v Milwaukee battery with some sort of voltage reducer?

These would be a lot lighter and i also have an abundance of them for my job i have 2 x 12 ah and 4 x 6 ah.
also thinking if this is possible it makes the battery span time a lot longer as i can keep the spares in the car and swap out as needed.

Thanks in advanced

Mr Yarg

 

[IBGold]

Hi all,
I have an old gp3000 that ill be using soon.
I have 2 questions 1 been how long should the 6v 6ah battery last while detecting and the 2nd regarding the batteries them selves.
Is i possible to use a 18v Milwaukee battery with some sort of voltage reducer?

These would be a lot lighter and i also have an abundance of them for my job i have 2 x 12 ah and 4 x 6 ah.
also thinking if this is possible it makes the battery span time a lot longer as i can keep the spares in the car and swap out as needed.

Thanks in advanced

Mr Yarg

Hi Mr Yarg,

The original Gel cells should last out the day depending how old they are as for your 18V Milwaukee battery's this would work with a voltage regulator but do not try to run the GP3000 direct from the 18V battery or bad smoke will appear I do have a circuit for a suitable voltage regulator that I use.

Regards, Ian.

 

[EVIE/BEE]

These are half the weight of the gel-cell.
The dome top fits the bigger one. You'll need the right charger.

 

[geof_junk]

First link SD & GP standard battery and spec.
Second link Drypower 6 volt Batteries


6 Volt replacement SD or GP batt.

List of 6 Volt DRYPOWER Batt

 

[Mr Yarg]

Awesome thanks for the quick response i think ill go with the 11.4 ah lipo just need to work out a charger

 

[EVIE/BEE]

I went with one of these.
Set the yellow dial to 7.5 volts.
You'll need a 4 pin plug on the end of the cable to fit into the dome top to charge.

 

[Capertee gold]

7.2 volt Sony cam corder battery's will run it all day .the conversion is simple as and you can buy 2 with a wall charger and car charger for around $79 .stuck to the side of the machine no more cables to tangle you up
https://www.ebay.com.au/itm/1749829...wwiMeiDQ7C&var=&widget_ver=artemis&media=COPY

 

[gef12]

Cam corder batteries work well also ...

 

[Mr Yarg]

7.2 volt Sony cam corder battery's will run it all day .the conversion is simple as and you can buy 2 with a wall charger and car charger for around $79 .stuck to the side of the machine no more cables to tangle you up
https://www.ebay.com.au/itm/1749829...wwiMeiDQ7C&var=&widget_ver=artemis&media=COPY

this might be the way to go! any idea how to wire this up and also what would you do for a speaker?

 

[IBGold]

this might be the way to go! any idea how to wire this up and also what would you do for a speaker?

You can also get these batteries at 12 ah and this is what I use for my GPX5000 the battery holder below is what I made to solve connections it will run my F1A4 or GPX depending on input cables I have one for each detector the only problem I see is I am not sure the GP 3500 will work with the 8.4 volt maximum charge I only ever used my 3500 at 7.2 volt gef12 can you comment on this.

Regards, Ian.

 

[user 4485]

Complete ready made kit here:
https://detectormods.com/shop/63/lightweight-battery-kitHas an audio lead that would require a seperate amp/booster to get the best out of using a speaker.

If you want to make your own battery set up the power plug wiring is:
https://www.prospectingaustralia.co...-power-plug-pinout-diagram.27633/#post-436421Obviously you need to make up a 4 pin socket with the 2x battery +/- wires to the battery & 2x audio wires to a headphone socket piggyback. As above to use a speaker best with amp/booster.

 

[PhaseTech]

I have 2/3 size GPX style batteries, that work on all SD/GP/GPX. Same capacity as standard GPX batteries but lighter. https://phasetechnical.com.au/lighter-weight-battery-for-minelab-sd-gp-gpx/

 

[gef12]

You can also get these batteries at 12 ah and this is what I use for my GPX5000 the battery holder below is what I made to solve connections it will run my F1A4 or GPX depending on input cables I have one for each detector the only problem I see is I am not sure the GP 3500 will work with the 8.4 volt maximum charge I only ever used my 3500 at 7.2 volt gef12 can you comment on this.

Regards, Ian.

I use these for gp3500 / 3000 .. just put 2 x diodes in series .. works a treat ..

 

[IBGold]

I use these for gp3500 / 3000 .. just put 2 x diodes in series .. works a treat ..

Thank you gef12.

Mr Yarg, If you are going to use the camcorder type batteries I have an early version of the battery carrier I use that the battery is held in place with Velcro rather than the lock I now use it is surplus to my requirements so you are welcome to it if you want it no cost just you pay the postage all you will need is a short lead to connect to the detector I will add the diodes in it to run on the GP3500.

Regards, Ian.

 

[Mr Yarg]

Thank you gef12.

Mr Yarg, If you are going to use the camcorder type batteries I have an early version of the battery carrier I use that the battery is held in place with Velcro rather than the lock I now use it is surplus to my requirements so you are welcome to it if you want it no cost just you pay the postage all you will need is a short lead to connect to the detector I will add the diodes in it to run on the GP3500.

Regards, Ian.

oh wow that would be amazing thank you, i actually managed to damage the cable on the battery side of my detector today and need a replacement so i may as we just get a shorter one now
ill send you a msg.

thanks everyone for all the helpful info

 

[IBGold]

oh wow that would be amazing thank you, i actually managed to damage the cable on the battery side of my detector today and need a replacement so i may as we just get a shorter one now
ill send you a msg.

thanks everyone for all the helpful info

Hi Mr Yarg no problem just get your existing cable shortened you have the plugs and you will only need about 300mm max of cable if you make a pocket on the detector cover to carry the battery I have responded to your message.

Regards, Ian.

 

[IBGold]

oh wow that would be amazing thank you, i actually managed to damage the cable on the battery side of my detector today and need a replacement so i may as we just get a shorter one now
ill send you a msg.

thanks everyone for all the helpful info

Well it would be nice to have got a response to know that you got what I sent you ok at least to my knowledge you received the package last Thursday I have added an image of what I sent.

Regards, Ian.

 

[Mr Yarg]

Hey Ian,
My apologies, i thought i had sent you an email that night but it sat in my drafts folder and didn't send.
I received it on that Thursday you said i would, extremally well packaged
Works a treat, i just need to look at modifying the feet on my gp3000 they look to be slightly longer then the space for them to sit into.

I've just checked with my partner and then return envelope is sitting in the car still i will make sure this gets sent back to you tomorrow..

Again thank you so much, ill be able to carry 2 batteries easily now


Many Thanks,

Mr Yarg

 

[IBGold]

Hey Ian,
My apologies, i thought i had sent you an email that night but it sat in my drafts folder and didn't send.
I received it on that Thursday you said i would, extremally well packaged
Works a treat, i just need to look at modifying the feet on my gp3000 they look to be slightly longer then the space for them to sit into.

I've just checked with my partner and then return envelope is sitting in the car still i will make sure this gets sent back to you tomorrow..

Again thank you so much, ill be able to carry 2 batteries easily now


Many Thanks,

Mr Yarg

The feet may be tight but it should fit may need to relieve the cut outs slightly with a file but don't modify the detector worst case if you need a spacer for between the top and base section I can make you one let me know how thick it needs to be to allow the legs to fit and bolt up.
Regards, Ian.