6 volt battery question......

Sep 25, 2008
7,338
Alden 50 Sarasota, Florida
Found this in Maine Sail's article on installing a battery charger:
"Any terminal mounted temperature sensor also needs to be connected directly to anegative terminal, and not the positive terminal. The termperature sensor has the ability to fry the charger if connected to the + terminal and also the potential to be accidentally shorted."

While the sensor doesn't need battery voltage to operate, applying battery voltage to it is bad for the electronics on the other end.
While there may be a reason to consider polarity, voltage exists on both the positive and negative sides -it’s a loop.
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
22,771
CAL 35 Cruiser #21 moored EVERETT WA
voltage exists on both the positive and negative sides -it’s a loop.
Yes it does Don but the wire connection in this case includes a 6 volt positive terminal and should you connect a your temp sensor wire to there you can have a 6 volt positive charge at the other end sensor line. Touch the open end of the sensor line to ground and you’ve created a path for the 6 volt charge to short to ground, n'est-ce pas.
 
May 17, 2004
5,548
Beneteau Oceanis 37 Havre de Grace
Found this in Maine Sail's article on installing a battery charger:
"Any terminal mounted temperature sensor also needs to be connected directly to anegative terminal, and not the positive terminal. The termperature sensor has the ability to fry the charger if connected to the + terminal and also the potential to be accidentally shorted."

While the sensor doesn't need battery voltage to operate, applying battery voltage to it is bad for the electronics on the other end.
I stand corrected. Thanks for pointing out that potential. (See what I did there? :biggrin:)
 
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