Can the weather (Hot/Cold) affect MDing BATTERY??????

[MD'erStEvO]

Can the weather (Hot/Cold) affect MD'ing BATTERY

ALCON,

I love working with AC/DC circuitry and electronics! I think that's why MD'ers are soooo impressive to me. But, today I met a gentlemen (fellow detector enthusiast), and we both showed off our MD'ers. I'm currently located in Italy, and it's freezing over here, but when I turned on my detector, it went ballistic!!! I mean it went back and forth through all the tones and beeps (0-99) and never stopped. I'm going to conduct a test with 9 volt batteries. I want to leave one out over night in the cold, and one in the house. I will use a multimeter to check the outputs on both. Also, I want to check 3 different brands of batteries and how they affect my detector. When I got home, I waited about 1 hour and set the same battery back in my detector. Once I turned it on, it was fine... AWKWARD.... I think these series of tests I want to conduct will solidify my hypothesis, but I'm curious to know if anyone else has experienced this problem before

1. Do different batteries cause issues with your detector?
2. Does Hot/Cold weather affect your detector?
3. I use a Bounty Hunter Platinum Detector... What detector do you use??

Thanks for your replies as they will help me answer the 5 W's in my newfound hobby of Metal Detecting....

 

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[G.A.P.metal]

In my Owner`s Manual
Operating Temp Range 4 to+122 degrees F (-20 to +50 degrees C )
So yes temp must effect the machine.... or the manufacturer would not state it.
Gary

 

[MD'erStEvO]

G.A.Pmetal,

Thanks for the helpful reply! Do you still have a website up with your products

 

[G.A.P.metal]

No sir i don`t but, thank you !
Gary

 

[pgfhgs]

Answers
1. Yes definitely
2. I never noticed only I use high quality alkaline
3. V3i, Garrett AT Pro, Ace 250

And it is -13 here! yeah that's correct minus 13 Fahrenheit

 

[pgfhgs]

Answers
1. 2. I never noticed only I use high quality alkaline

2. Yes definitely

3. V3i, Garrett AT Pro, Ace 250

And it is -13 here! yeah that's correct minus 13 Fahrenheit

Opps

 

[CincinnatiKid]

Have you also considered EMI?
Peace ✌

 

[worldtalker]

Answers
1. Yes definitely
2. I never noticed only I use high quality alkaline
3. V3i, Garrett AT Pro, Ace 250

And it is -13 here! yeah that's correct minus 13 Fahrenheit

GO GREEN BAY!!

 

[Professor of Engineering]

Hello,

As the temperature decreases (warmer works in reverse) the batteries internal resistance increases, hence the voltage drops across this internal resistance produces a lower terminal voltage. Different battery chemistries will be better in warmer or cooler working environments, but they all suffer from this condition. If you research the brand of batteries you use in the detector, you can find their operating characteristics (temperature vs. discharge graphs) due to changes in temperature. If I remember correctly, most batteries follow a more linear (as opposed to non-linear) voltage drop across the terminals as the temperature decreases.

Regards,

 

[MD'erStEvO]

Professor of Engineering,

After testing, my hypothesis was correct as well as your assessment!!! Thanks a lot for the helpful feedback...

 

[Professor of Engineering]

You are most welcome "MD'erStEvO", happy hunting in 2015!

 

[Frankn]

Ok here's what happened. Your detector will 'go crazy' if it encounters the signal from another detector (your friends).
Now for the battery. The chemical reaction in a battery slows as the temperature lowers. Some detectors just shutdown at a low voltage, while others 'loose control'.
Frank