Looking for current # to replace a Size Z battery (Panasonic brand) It appears to be same diameter as a double AA and about half the length of a AA . Used to power an LED on a Track Master G Scale track cleaning car!
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Could it actually be a size N (rotated 'Z') battery?
https://www.google.com/search?...ce=lnms&tbm=isch
If it's an AA except 1/2 the length, wouldn't it be a "1/2 AA"?
Curious why a G scale car would use such a small battery?
Stan, he says it's powering an LED. As to why you need an LED on a track cleaning car, that's a whole different question. 
OK I think I'm being picked on!! LOL Well it is an "N" battery depends on how you hold the battery! I will take a photo of the car and post! As to why you need a LED on a track cleaning 1 because it was an available option and 2 it looked cute. 
If it really is a 1.5V N battery (not to be confused with the similarly sized 12V A23 battery ), then it would need some kind of voltage step-up circuit to drive an LED.
My curiosity was why such a small battery size given the size of the G scale car. Seems a "full-size" 1.5V AA or AAA would easily fit and be less expensive and more easily found. I await the pictures!
BTW, I realize it's been established that we're indeed dealing with an "N" battery...but there is a "1/2 AA" Lithium variant at 3.6V which would be a good starting voltage to drive a ~3V white LED. That is, it is cheaper and takes less circuitry to reduce 3.6V to ~3V than to raise 1.5V to ~3V.
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Ok Here we go! New batteries installed LED now working (ETD)
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gunrunnerjohn posted:Stan, he says it's powering an LED. As to why you need an LED on a track cleaning car, that's a whole different question.
Union requirement!
Glad the "N" suggestion worked out for you!
stan2004 posted:If it really is a 1.5V N battery (not to be confused with the similarly sized 12V A23 battery ), then it would need some kind of voltage step-up circuit to drive an LED.
My curiosity was why such a small battery size given the size of the G scale car. Seems a "full-size" 1.5V AA or AAA would easily fit and be less expensive and more easily found. I await the pictures!
BTW, I realize it's been established that we're indeed dealing with an "N" battery...but there is a "1/2 AA" Lithium variant at 3.6V which would be a good starting voltage to drive a ~3V white LED. That is, it is cheaper and takes less circuitry to reduce 3.6V to ~3V than to raise 1.5V to ~3V.
Stan See Photos below!! $3.99 for the new N battery's!
Tom weaver posted:gunrunnerjohn posted:Stan, he says it's powering an LED. As to why you need an LED on a track cleaning car, that's a whole different question.
Union requirement!
Ah ha. There are 2 batteries involved so there's 2 x 1.5 = 3 Volts available. And the LED is red so it only needs ~2 Volts rather than the 3+ Volts for a white LED headlight. Now I get it!
