AAAA, AAA, AA, C, D, . . . . So where's A and B?

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Orion

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AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

Did they just not make it in the industry? /ubbthreads/images/graemlins/blush.gif
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

I asked this question before and I don't remember the specifics, but I think both of those sizes were made at some point, but just didn't become common. I think it is still possible to find A's in some very rare and specialized uses.

Frankly, I am glad. It seems like we have too many battery sizes anyway. Standardization is a good thing.
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

A sized rechargeable batteries are quite common. Also, the "A" on the end of "CR123A" refers--I assume--to the diameter, which is the same as an A sized battery.

Don't know about the B sizes, though. I haven't seen any for sale nor have I seen any references to them. Perhaps that was skipped because they were using "B" for "Battery", or perhaps it used to be a size and died out. No idea.
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

They used to make size A and B batteries for use in vaccume tube radio sets.

Radio A batteries were low voltage (+1.5 volts typical) at high current, and were used to run the tube filaments.

Radio B batteries were high voltage (+22.5 to at least +90.0 volts) at low current (one such +90V battery was made from ten 9V transistor radio batteries connected in series), supplying the plates of the tubes with high voltage.
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

Leave it to The LED Museum to have the answer. /ubbthreads/images/graemlins/wink.gif
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

I read that B-sized batteries were 43V or something like that. And the high voltage was necessary for powering tubes. Didn't draw a lot of current though. B was replaced by the 9V because transistors took over tubes and required less voltage to operate.

I think you will still find A-sized cells in a lot of rechargeable toothbrushes, but I don't think there is a call for A-sized primary cells anymore.

I understand that there is an F battery and this is commonly known as the 6V lantern battery?

Was there ever an E battery? Are there any other designations?
 
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Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

Steelwolf, yes there were E batteries, can't remember what they were used for but can remember several large "E" cells at my uncles farm in South Carolina in the shed. i can't remember voltage or any specs.

The F cell as 6V lantern makes sense, the E cells were more square, and if I remember, shorter.

Lots of "A" cells still in use in Remote Control planes, robots, etc. The are available in both NiCad and NiMH configurations, as are variants like 4/5 A's (shorter), 5/4 A's (slightly longer) and 4/3 A's (suppossedly longer still, but most of the spec sheets show them the same as 4/3 A's)

The various prototypes of the Mule have used 4/5 A's and 4/3 A's.

Bill
Bill
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

I believe a 6v lantern battery is made of 4 F cells.
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

some 6 volt lantern batterys are made with f cels
some are made with d cells
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and

useless.gif

bernhard
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

[ QUOTE ]
The_LED_Museum said:
They used to make size A and B batteries for use in vaccume tube radio sets.



[/ QUOTE ]
Craig: In the context of vacuum radio set batteries, A and B did not designate sizes. They designated functions. The A batteries powered the tube filaments, the B batteries provided the high voltage for the cathode to anode circuit. There was also a "C" battery function which served to bias the grid voltage of the tubes.
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

I have some Eveready 'B' size batteries (now obsolete) that are 4.5v low current if I recall correctly. These were to power some meter and I also have an old VOM that has a place for these in the beeper for continuity testing...

I remember bringing these up on CPF several months ago. A search would bring you some more information including a link to the Eveready info.
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

Doug S is right on. IIRC, the "C" battery was the highest voltage, and therefore the first to be engineered out of the equation, either through new parts needing less voltage, or a transformer. So when the dry cells standardized, no one thought twice about having a C-size battery, but the A and B might be confusing to radio applications.

Pic of B-cell: http://www.bitwaste.com/wasted-bits/archives/000115.html

More info here: http://www.angelfire.com/ma2/AdamVon/tobatt.html
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

[ QUOTE ]
Blikbok said:
Doug S is right on. IIRC, the "C" battery was the highest voltage, and therefore the first to be engineered out of the equation, either through new parts needing less voltage, or a transformer.

[/ QUOTE ]
No. The "C" bias batteries where generally less than 10V. It was the "B" batteries that ranged up to 135V. For B batteries the most common values were 45V, 67.5V and 90V. These voltages based on 1.5V times the number of cells in the battery.
 
Re: AAAA, AAA, AA, C, D, . . . . So where\'s A and B?

As Bill stated above, the 'A' family is widely used, I new the CR123 cells first as 2/3A before I heard the term '123'.
The most common Li-Ion cell is the so called fat 4/3A, known as 18650.
And we know the sub-c (Cs) as used in power tools, the most common high current cell (may change soon).
The F cell is actually a 3/2 D.

Funny enough, all these 'names' are obsolete, as there is a another scheme to replace it, but nobody cares.
 

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