Introducing The Minelab Profind 40

[Tony]

I’m trying to get one “bundled” with the Manticore…..offering a “free” Pro-Find 35 as part of the current promotion here in Australia. With the Aussie “peso” dropping like crazy, I can’t see myself buying anything from overseas for a while. 
 

FYI…..I currently have no pin-pointer whatsoever. Waiting for Simons reaction on that ?
 

[Tony]

Can someone enlighten me on why there is no love for the humble 9v battery. The physical form factor relative to 6 x 1.5 AA batteries is surely an advantage. I can get a 4 pack of Duracell 9v for a reasonable price. Is it a short run for the 9v?

[phrunt]

24 minutes ago, Tony said:

Can someone enlighten me on why there is no love for the humble 9v battery. The physical form factor relative to 6 x 1.5 AA batteries is surely an advantage. I can get a 4 pack of Duracell 9v for a reasonable price. Is it a short run for the 9v?

One side of my face went floppy when you said you have no pinpointer, I felt physically ill and gagged a few times trying to hold it in.

I think people prefer the convenience of the USB charging.  I'm not overly bothered by it at all, and in a way it's good as your pinpointer can easily get a new battery when required, built in batteries can end the life of the product if the battery goes and there are no replacements at the time.  

The modern batteries used in these pinpointers are fine though, last for many years, often more than 5 with no sign of degradation.  

The 9v can be good if you get the right one, I highly recommend PowerEX 9.6 or 9.2 volt rerechargeable iMH batteries for 9v applications.  they have a good solid long life in use and last for many years.   They're often at Photography shops as they are great for camera flashes, microphones and other photography gear that has high power demands.

Maha Powerex Precharged 9V 9.6V 230mAh rechargeable battery | Protog

Higher voltage True 9.6V Rechargeable NiMH Batteries provide longer runtime in most devices

Get more out of your devices! Powerex 9V batteries have 9.6V true voltage, rather than 8.4V found in many other rechargeable batteries. Compare Powerex 9V batteries with many other 9V batteries and you will see that they really are in a class of their own.

Why do 9.6V batteries last longer?

The Powerex 9.6V batteries are designed specifically for devices which need the full 9V to operate. The nominal voltage is 9.6V, whereas most other rechargeable 9V batteries have a nominal voltage of 8.4V. When the Powerex 9.6V is fully charged, the voltage will be around 11.5V, just as your 12V car battery will be around 14.4V when fully charged, and about 7.6V when fully discharged. Due to the non-linear voltage discharge curve of NiMH batteries, the device can access around 90% of the Powerex battery capacity before the voltage drops below 9V. See the chart below:

Features

• True 9.6V 230mAh rating, with Precharged low self-discharge technology, retaining 85% of their charge for up to 1 year.
• Actual Voltage is slightly higher than standard 9V Alkaline Batteries.
• Will outperform a standard 9-volt battery due to the higher voltage. Will also outperform 8.4V rechargeables due to the higher voltage required by some devices.
• Powerex 9.6V 9V batteries will operate microphones that other 9V batteries cannot power.
• Fast charge capable and works well with the MH-C490F and MH-C1090F Powerex Charger
• Enables microphones and paintball hoppers to last longer and work faster.
• No memory effect allows for fast and efficient full charges. No conditioning necessary.

Chargeable up to 1000 times.

 

If you end up with a 40 I'd be interested in what you think of it, particually if it runs stable.

[Tony]

13 minutes ago, phrunt said:

One side of my face went floppy when you said you have no pinpointer, I felt physically ill and gagged a few times trying to hold it in.

I was expecting a much worse reaction……Defibrillator and 000.

Thanks for all the info from your post….I hope to get a response from Reeds Prospecting if they want my business?

[Tony]

16 minutes ago, phrunt said:

If you end up with a 40 I'd be interested in what you think of it, particually if it runs stable.

Is that relative to local EMI or by maxing it out….

[pavelka72]

54 minutes ago, Tony said:

Can someone enlighten me on why there is no love for the humble 9v battery. The physical form factor relative to 6 x 1.5 AA batteries is surely an advantage. I can get a 4 pack of Duracell 9v for a reasonable price. Is it a short run for the 9v?

All you need to know about this power source:
The rechargeable battery must be only NiMh and its capacity cannot be more than 270 mAh
Check the size of this power supply, manufacturers look at this parameter differently (especially for non-rechargeable batteries)

Why is it good you said, compact, affordable, but its capacity has remained in the last century, if you are for reliability - it suits you.

[phrunt]

19 minutes ago, Tony said:

Is that relative to local EMI or by maxing it out….

Just in general, the 35 especially in the higher sensitivity settings can just be unstable, going off in the air for no reason.  Gets quite frustrating when using it.  

[palzynski]

3 hours ago, pavelka72 said:

Why is it good you said, compact, affordable, but its capacity has remained in the last century, if you are for reliability - it suits you.

For example ; 

- ML profind 35 :
    1 X 9V NiMh rechargeable Energizer  175mAh X 9V     --> capacity  1,6WH

- Teknetics Tekpoint : 
    2 X AA NiMh rechargeable Lekium  2100mAh X 1,2V   --> capacity   2,5WH

Then the Tekpoint with its 2 AAs has 56% more capacity than the Profind with its single 9V battery

I dont know for pinpointers with embedded li ion battery ( Quest Xpointer Max , XP MI4 MI6 , Sphinx 03 , etc .. ) because their capacity is not indicated on their tech specs , but from my experience with the Quest Xmax they probably have a much more important capacity than a single 9V battery  ..

[pavelka72]

22 minutes ago, palzynski said:

Например ; 

- ML profind 35 :
     1 аккумулятор Energizer 9 В NiMh 175 мАч X 9 В --> емкость  1,6 Втч

- Teknetics Tekpoint:     2  аккумулятора Energizer AA NiMh 2000 мАч X 1,2 В --> емкость  2,4 Втч 

Тогда Tekpoint с его 2 батареями AA имеет на 50% больше емкости, чем Profind с одной батареей 9 В.

Я не знаю для пинпоинтеров со встроенным ионно-литиевым аккумулятором (Quest Xpointer Max, XP MI4 MI6, Sphinx 03 и т.д..), потому что их емкость не указана в их технических характеристиках, но, судя по моему опыту с Quest Xmax, они, вероятно, намного важнее емкость, чем одиночный аккумулятор 9В..

 

 

 

You estimate the size of a tank of gasoline, but do not take into account the consumption of gasoline per 100 km (current consumption). After all, for you, as a user, the main thing is how long you can not charge your battery (to drive to a gas station) and what is very important (you forgot when you last charged the battery) to correctly indicate the battery discharge in advance so as not to find a discharged pinpointer in the morning before trip.
I'm not saying you're wrong, I'm saying it's not the whole truth.