Re: Do not buy gadgets having proprietary batteries

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BillW50 wrote:

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1. The voltage is too low. A NiCad is 1.2V vs 1.5V for an Alkalines. In a 6
or 8 cell unit this can amount to a volt or more and some devices just
don't work as well or not at all at the lower voltages.

2. They discharge when not in use. A flashlight or a toy might not get used
for 6 months and by then the battery is dead from self discharge. Alkalines
keep their charge for years.

3. But the *real reason* is that I'm just too lazy to keep track of charging
the cells. Costco sells Alkalines real cheap. Not very green I know...

--On an unrelated note do you have KDE Wallet on any of your Linux EeePC
Laptops. If so how do you get rid of it? Or at least how do you access it?
I've tried all the name commands in the terminal window I can think of and
no luck.

I'm using the Linux newsreader KNode on my 2G Surf right now so we'll see
what happens when I push send. (No spell checker so now you see the real

Re: Do not buy gadgets having proprietary batteries

AJL typed on Sun, 26 Oct 2008 12:57:47 -0700:
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Yes this is true. But I find this is rare to not have enough voltage for
most devices. This wireless Micro Innovations keyboard didn't have enough
voltage with 2x AA alkalines. As once the AA batteries dropped down to 1.5v
it would quit. I fixed it though and added a third battery and now I can use
it until each cell drops down to 1.0v on rechargeables.

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Yes seldom or low power stuff like remote controls, alkaline batteries tend
to work far better. Although I do use rechargeables in remotes if I am out
of alkalines.

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I used to keep logs of each battery. But nowadays I have two one hour
chargers (they charge individually and not in pairs like most chargers) and
keep the spares charged about every 2 weeks. I have battery storage
containers and I place the positive end facing left for needs recharging and
right if recently recharged. I dunno, it is very little work to me nowadays.

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Nope I don't have KDE Wallet, or should I say I don't think I do.

Gateway MX6124 - Windows XP SP2

Re: Do not buy gadgets having proprietary batteries

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How does this work?  If the cell technology is available then the cell
technology is available in "standard" sizes. (This doesn't have to be
the case, but it is.)
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Most devices have rechargeable, so the standard batteries would be
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OK.  In fact, there is an ad from one of the major battery companies
than compares their rechargeable to non-rechargeable from the other
major company.

The problem is that the non-rechargeable's last 1/5 as long per charge
as the rechargeable's and only last 100's of times as long (per the
advertisers' own numbers)  I'd much rather get 500 shots from my
camera instead of 100, especially since I can buy the
non-rechargeable's when I am on a trip or carry a few extra sets when
I am camping.  (Of course both companies make both rechargeable and
non-rechargeable batteries using the same technology, so comparing
to the other company's batteries was a red herring.)

Re: Do not buy gadgets having proprietary batteries

On Sun, 2 Nov 2008, Mark F wrote:

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Chemistry determines the voltage, and a different chemistry is used
for alkaline and nicad batteries.

Witness a lot of "9v" rechargeable batteries.  Most of them are 7.2,
because inside are 6 cells that each put out 1.2v.  This is identical
to alkaline 9v batteries, that have a bunch of cells inside that each put
out 1.5volts, which add up to the 9v.  They could raise the voltage for
the rechargeble batteries, but then they'd have to make each cell smaller,
and thus lower the current they can supply.

My old Model 100 laptop ran off four AA batteries.  Running off nicads
was fine, but their life between charges was shorter than the life of a
set of alkaline.  That's because they started at a lower voltage and thus
hit the voltage where the laptop stopped working sooner than for the 1.5v

Equipment designed for rechargeable batteries get designed for the lower
voltage, or specify enough cells to provide enough voltage.

Radio Shack used to sell CB walkie talkies, and there'd be enough space
for 10 cells (I can't remember whether they were AA or C or D) to make
up 10 * 1.2v=12volts.  They'd come with a couple of dummy cells, so if
you wanted to run it off alkaline batteries, you'd put the two dummy
cells in to use up the space of 2 batteries, and your 8 * 1.5v=12volts.


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