button battery question

AllEmailDeletedImmediately

unread,

Jan 2, 2008, 2:02:58 PM1/2/08

to

i need to get some button batteries. wikipedia has me a bit confused:

http://en.wikipedia.org/wiki/List_of_battery_sizes

i need one from the sr44 row. the naming notes about SR/LR/AG battery
types seems to contradict itself.

SR# / LR# / AG# Button Cells: IEC SR series batteries are silver oxide
chemistry and provide 1.55 volts,
while IEC LR series batteries are alkaline chemistry and provide 1.5 volts.
Since there are no 'common' names
beyond the AG# designation, many places use these three terms
interchangeably, and they will all fit and work.
The only difference is that the SR series typically have 50% greater
capacity than the LR series. In low-drain
devices like watches (without lights) this isn't very important, but in
high-drain devices like blinkies, key chain
flashlights, or laser pointers the LR type is preferred.

Typically SR and LR will be the same price unless one buys in wholesale
volume so there is no reason not to get
the SR version. Often the free 'demo' batteries that come with a device are
the LR version.

they're saying that SR batteries will last longer, right?

why is the LR type preferred if the SR will last longer in the high drain
devices?

i need batteries for a laser compass, so i'm guessing high drain.

Seerialmom

unread,

Jan 2, 2008, 2:29:02 PM1/2/08

to

On Jan 2, 11:02 am, "AllEmailDeletedImmediately" <der...@hotmail.com>
wrote:

Hmm...I was able to buy a 9 pack of those batteries at the 99¢ Only
store; seemed to work well for a while with the laser pointer cat toy.

Logan Shaw

unread,

Jan 3, 2008, 1:36:29 AM1/3/08

to

I could be wrong, but I'm guessing it's just a typo and they meant that
the SR type is preferred.

It is from wikipedia -- you could ask on the discussion page for the
article. If it turns out that it's correct as worded, then that would
be surprising, and the article should be clarified to explain why the
counterintuitive thing is the case. If it isn't correct, it needs to
be correct. Either way, someone needs to draw attention to the article
so that the wikipedia participants can improve it.

- Logan

AllEmailDeletedImmediately

unread,

Jan 3, 2008, 9:00:03 AM1/3/08

to

"Logan Shaw" <lshaw-...@austin.rr.com> wrote in message
news:477c8253$0$5152$4c36...@roadrunner.com...

this is what i thought.

>
> It is from wikipedia -- you could ask on the discussion page for the
> article. If it turns out that it's correct as worded, then that would
> be surprising, and the article should be clarified to explain why the
> counterintuitive thing is the case. If it isn't correct, it needs to
> be correct. Either way, someone needs to draw attention to the article
> so that the wikipedia participants can improve it.

didn't know there was a discussion page. i'll go look for it. thanks.

exec...@management.com

unread,

Jan 4, 2008, 2:26:32 AM1/4/08

to

I never knew belly buttons needed batteries.
I'm still using the same one I was given at birth. I guess the
doctors must install them in the hospital right after birth.