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Posted by Bob F on November 18, 2009, 8:23 pm
David Nebenzahl wrote:
show/hide quoted text
> On 11/18/2009 7:54 AM Tony spake thus:
>> Stormin Mormon wrote:
>>> What's a way to use up old 9 volt transistor batteries? I've
>>> got a couple dozen that still have some charge. I figure
>>> with a couple battery clips, I could put two in series. Dump
>>> the charge into 12 volt lead acid batteries to keep my
>>> devices going some day when the power is out.
>>> One of the charge bases for my FRS walkies takes 9 volts in.
>>> Maybe rig something up, and parallel a couple transistor
>>> batteries to keep FRS walkie charged.
>>> Just hate to throw them all away.
>> You can have fun putting the terminals on your tongue to see which
>> ones have more juice.
> Yeah, I used to do the "taste test" too, but all it tells you is
> whether or not the battery is absolutely dead.
Not true. You can get a good idea of how dead.
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Posted by Jules on November 19, 2009, 9:12 am
On Wed, 18 Nov 2009 11:25:22 -0800, David Nebenzahl wrote:
show/hide quoted text
>> You can have fun putting the terminals on your tongue to see which ones
>> have more juice.
>
> Yeah, I used to do the "taste test" too, but all it tells you is whether
> or not the battery is absolutely dead.
Hmm, done that with the little 9v batteries before. By "transistor
batteries" I assumed the OP was talking about the big old 9V radio
batteries (the ones the size of drinks cans, only rectangular). Unless
that's what everyone else is talking about, too :-)
My memory of those big batteries is that one terminal was on the top face
and one on the side (right near the top), so putting a tongue across them
would be tricky. Don't think I've seen a battery like that in nearly 30
years, though...
cheers
Jules
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Posted by Tony on November 19, 2009, 11:22 am
Jules wrote:
show/hide quoted text
> On Wed, 18 Nov 2009 11:25:22 -0800, David Nebenzahl wrote:
>>> You can have fun putting the terminals on your tongue to see which ones
>>> have more juice.
>> Yeah, I used to do the "taste test" too, but all it tells you is whether
>> or not the battery is absolutely dead.
>
> Hmm, done that with the little 9v batteries before. By "transistor
> batteries" I assumed the OP was talking about the big old 9V radio
> batteries (the ones the size of drinks cans, only rectangular). Unless
> that's what everyone else is talking about, too :-)
>
> My memory of those big batteries is that one terminal was on the top face
> and one on the side (right near the top), so putting a tongue across them
> would be tricky. Don't think I've seen a battery like that in nearly 30
> years, though...
I have a portable tube radio that uses two 45 volt batteries in series
for 90 volts and also I think a 6 volt one for the tube filaments. Are
you maybe thinking of the 45 volt batteries? I'm guessing the shape was
about the same as a little 9 volt, but much much larger with screw on
terminals, probably at opposite ends for safety. They were/are
reproducing them but I bought some cheap 9volt snap on connectors and
put 10 9 volt transistor batteries in series and used a couple of C
cells for the filaments.
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Posted by Bob Villa on November 19, 2009, 12:43 pm
show/hide quoted text
> Jules wrote:
> > On Wed, 18 Nov 2009 11:25:22 -0800, David Nebenzahl wrote:
> >>> You can have fun putting the terminals on your tongue to see which on=
> >>> have more juice.
> >> Yeah, I used to do the "taste test" too, but all it tells you is wheth=
> >> or not the battery is absolutely dead.
> > Hmm, done that with the little 9v batteries before. By "transistor
> > batteries" I assumed the OP was talking about the big old 9V radio
> > batteries (the ones the size of drinks cans, only rectangular). Unless
> > that's what everyone else is talking about, too :-)
> > My memory of those big batteries is that one terminal was on the top fa=
> > and one on the side (right near the top), so putting a tongue across th=
> > would be tricky. Don't think I've seen a battery like that in nearly 30
> > years, though...
> I have a portable tube radio that uses two 45 volt batteries in series
> for 90 volts and also I think a 6 volt one for the tube filaments. =A0Are
> you maybe thinking of the 45 volt batteries? =A0I'm guessing the shape wa=
> about the same as a little 9 volt, but much much larger with screw on
> terminals, probably at opposite ends for safety. =A0They were/are
> reproducing them but I bought some cheap 9volt snap on connectors and
> put 10 9 volt transistor batteries in series and used a couple of C
> cells for the filaments.
I know you probably meant 4 C's.
My dad had one of those...like a small suitcase or the old portable
record player types.
I destroyed his without asking...trying to convert to an audio amp (I
think?).
bob_v
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Posted by Jules on November 19, 2009, 8:03 pm
On Thu, 19 Nov 2009 11:22:11 -0500, Tony wrote:
show/hide quoted text
> Jules wrote:
>> On Wed, 18 Nov 2009 11:25:22 -0800, David Nebenzahl wrote:
>>>> You can have fun putting the terminals on your tongue to see which ones
>>>> have more juice.
>>> Yeah, I used to do the "taste test" too, but all it tells you is whether
>>> or not the battery is absolutely dead.
>>
>> Hmm, done that with the little 9v batteries before. By "transistor
>> batteries" I assumed the OP was talking about the big old 9V radio
>> batteries (the ones the size of drinks cans, only rectangular). Unless
>> that's what everyone else is talking about, too :-)
>>
>> My memory of those big batteries is that one terminal was on the top face
>> and one on the side (right near the top), so putting a tongue across them
>> would be tricky. Don't think I've seen a battery like that in nearly 30
>> years, though...
>
> I have a portable tube radio that uses two 45 volt batteries in series
> for 90 volts and also I think a 6 volt one for the tube filaments. Are
> you maybe thinking of the 45 volt batteries? I'm guessing the shape was
> about the same as a little 9 volt, but much much larger with screw on
> terminals, probably at opposite ends for safety. They were/are
> reproducing them but I bought some cheap 9volt snap on connectors and
> put 10 9 volt transistor batteries in series and used a couple of C
> cells for the filaments.
Hmm, yeah, heck if I know now. Did some googling but can't find a picture
of the thing I remember. It was maybe 4" tall, 2" wide, 3/4" thick. I'm
pretty sure Ever Ready made 'em (and probably others).
Maybe brain fart on my part and they really were 6V and not 9V (but I
googled for old 6V batteries and couldn't find the thing I remember,
either)
Always assumed the one side-terminal was so it was harder to accidentally
short them out.
cheers
Jules
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>> Stormin Mormon wrote:
>>> What's a way to use up old 9 volt transistor batteries? I've
>>> got a couple dozen that still have some charge. I figure
>>> with a couple battery clips, I could put two in series. Dump
>>> the charge into 12 volt lead acid batteries to keep my
>>> devices going some day when the power is out.
>>> One of the charge bases for my FRS walkies takes 9 volts in.
>>> Maybe rig something up, and parallel a couple transistor
>>> batteries to keep FRS walkie charged.
>>> Just hate to throw them all away.
>> You can have fun putting the terminals on your tongue to see which
>> ones have more juice.
> Yeah, I used to do the "taste test" too, but all it tells you is
> whether or not the battery is absolutely dead.