Help to find Battery

This is the place for any magazine-related discussions that don't fit in any of the column discussion boards below.
Post Reply
User avatar
dacflyer
Posts: 4748
Joined: Fri Feb 08, 2002 1:01 am
Location: USA / North Carolina / Fayetteville
Contact:

Help to find Battery

Post by dacflyer »

I have a device that is size cramped. the battery pack is bad,, The batteries are like a AAA size but longer than a standard cell...
I can find smaller than standard cells like the 1/3 and 2/3 size,,but i can't find longer..or what is the name of this kind of cell ?
User avatar
Janitor Tzap
Posts: 1707
Joined: Sat Aug 12, 2006 5:17 pm
Contact:

Re: Help to find Battery

Post by Janitor Tzap »

Is this what your looking for in a AAA battery?
Image
https://www.walmart.com/ip/2x-1-2V-AAA- ... /167738588


Signed: Janitor Tzap
dyarker
Posts: 1917
Joined: Fri Aug 22, 2003 1:01 am
Location: Izmir, Turkiye; from Rochester, NY
Contact:

Re: Help to find Battery

Post by dyarker »

Which chemistry? (LION, NiCd, etc)
What nominal voltage per cell? (that will indicate chemistry)
What device needs them?
Dale Y
User avatar
Externet
Posts: 1888
Joined: Fri Feb 01, 2002 1:01 am
Location: Mideast USA
Contact:

Re: Help to find Battery

Post by Externet »

Can you measure the cell in millimetres, to check if matches something in the market with the dimensional nomenclature ?
(18650 are 18mm diametre, 65.0mm length, red one) Greens are 'AA' and double lenght 'AA'
Cells.jpg
- Abolish the deciBel ! -
User avatar
dacflyer
Posts: 4748
Joined: Fri Feb 08, 2002 1:01 am
Location: USA / North Carolina / Fayetteville
Contact:

Re: Help to find Battery

Post by dacflyer »

Janitor Tzap >> I need longer... I think what i need are 5/7 size AAA Ther are about 1.5x longer than standard cells bout 3" long same diameter as AAA

Externet >> 1.2v NiCd AAA But much longer..
I did find this link https://power.tenergy.com/battery-size-chart/

sell size....dia.......length
4/3 AAA 10.5 67
5/3 AAA 10.5 67
LL-AAA 10.5 67
3/2 AAA 10.5 67
6/4 AAA 10.5 67
I can't make heads or tails of the cell size ..improper fractions..lol
I can't find a source for these cells...
User avatar
Janitor Tzap
Posts: 1707
Joined: Sat Aug 12, 2006 5:17 pm
Contact:

Re: Help to find Battery

Post by Janitor Tzap »

Quote Johnny Five: "More Input!"

What is the device that this battery pack is in?

Are there numbers on the battery pack?

What is the physical size of the pack?

Is it NICAD, NIMH, LION?

What are the cells rated at?
{A picture of it would be nice.} :wink:

Could you use some higher capacity, but physically smaller N-Type Cells as replacements?
Or just normal size AAA cells?


Signed: Janitor Tzap
User avatar
dacflyer
Posts: 4748
Joined: Fri Feb 08, 2002 1:01 am
Location: USA / North Carolina / Fayetteville
Contact:

Re: Help to find Battery

Post by dacflyer »

I'm rebuilding a battery pack for a friends radio transmitter.. there is only room for the 3 AAA cells.
I'm bout to give up and just put regular NiMh cells in it and call it a day.. he'll just have slightly less run time.
GCH is all that is printed on the cells.
If i haven't found a easy source yet, it most likely is NLM..
So NiMh it is.....
thanks anyway guys
User avatar
Janitor Tzap
Posts: 1707
Joined: Sat Aug 12, 2006 5:17 pm
Contact:

Re: Help to find Battery

Post by Janitor Tzap »

dacflyer wrote: Thu Jun 24, 2021 9:01 am I'm rebuilding a battery pack for a friends radio transmitter.. there is only room for the 3 AAA cells.
What is the Make & Model of the Radio Transmitter?
dacflyer wrote: Thu Jun 24, 2021 9:01 am I'm bout to give up and just put regular NiMh cells in it and call it a day.. he'll just have slightly less run time.
GCH is all that is printed on the cells.
I've looked at the GCH, and after doing some web digging around.
I came across something about Medical grade Battery Packs.
But nothing that would tell me about the Size, Voltages, and Amps, of the Battery Packs. :sad:
dacflyer wrote: Thu Jun 24, 2021 9:01 am If i haven't found a easy source yet, it most likely is NLM..
So NiMh it is.....
thanks anyway guys
If it's old enough, it maybe is a NICAD Pack.
I had an RC Transmitter that used a rechargeable 12V 500ma AAA Cells NICAD Pack.
Worked good for about 2 - 3 hours, before I had to recharge it.
:roll:


Signed: Janitor Tzap
User avatar
Janitor Tzap
Posts: 1707
Joined: Sat Aug 12, 2006 5:17 pm
Contact:

Re: Help to find Battery

Post by Janitor Tzap »

Hmmm.........

I've been finding 1.2V 1/3 AAA 140ma Cells.
Image
Could you stack these into stacks of 3 = 3.6V, and then parallel 3 stacks together to up the amperes?


Signed: Janitor Tzap
User avatar
dacflyer
Posts: 4748
Joined: Fri Feb 08, 2002 1:01 am
Location: USA / North Carolina / Fayetteville
Contact:

Re: Help to find Battery

Post by dacflyer »

Thanks anyway guys,, I done replaced it with regular sized AAA's..and gave the radio back to the guy..
I told him that it was too difficult to find the originals. He was happy either way, just so that it worked.
User avatar
haklesup
Posts: 3136
Joined: Thu Aug 01, 2002 1:01 am
Location: San Jose CA
Contact:

Re: Help to find Battery

Post by haklesup »

If he was insisting it all had to fit in the same battery pack, then you probably did the only reasonable thing. If you had more space, 2 Li-Ion with a buck boost regulator stuffed in the third slot might have worked but those cells are too large to fit. Did you weld on the tabs or just drop in?
Deion Adel
Posts: 8
Joined: Fri Aug 13, 2021 1:08 am
Contact:

Re: Help to find Battery

Post by Deion Adel »

The battery has a letter near the positive pole to indicate the battery size. The comparison is as follows: No. 1 battery is D, No. 2 battery is C, No. 3 battery is A, No. 5 battery is AA, and No. 7 battery is AAA.
User avatar
dacflyer
Posts: 4748
Joined: Fri Feb 08, 2002 1:01 am
Location: USA / North Carolina / Fayetteville
Contact:

Re: Help to find Battery

Post by dacflyer »

Deion Adel >>>
The batteries had no such indicators..

haklesup >> i just scuffed them and soldiered em..used Weller for fast heat and least time contact.
Post Reply

Who is online

Users browsing this forum: No registered users and 15 guests