No, he is right and you are mistaken.

Sorry.

Bob



On Tue, 29 Jun 2004 01:53:37 +1200, Robert Mathews
wrote:

On Fri, 25 Jun 2004 19:56:04 GMT, "William Graham" wrote:


"Ron Hunter" wrote in message
...
William Graham wrote:

"pjp" wrote in message
...

I know every time I've used a set of my Lithiums to power up a
flashlight,
the bulb doesn't last very long (e.g. minutes at most). Therefore I'd be
cautious of using them in anything that says not to.


If the voltage is correct for the bulb, the battery type can't hurt it.
I
suggest you look up Ohm's law, and take a few minutes to learn some
basic
electrical theory.....Believe me, it should only take an hour or less,
and
the information will be invaluable to you, regardless of what you choose
for
your profession.......


WRONG!
Lithium batteries are capable of delivering very high currents. If a
flashlight is designed for carbon/zinc or alkaline batteries, the
designers are probably counting on the internal resistance of the
batteries to limit the current through the bulb. Lithiums could easily
burn out the bulb. But, it's your flashlight, try it out. Then tell us
how it affects bulb life.

I am sorry to disagree with you, but the internal resistance of the bulb is
what limits the current, (Ohm's law) and not the capability of the battery.




BOLLOCK ******** go get a Brain transplant as you do need one..


All batteries have internal resistance and goes up as the battery ages..





A 12 volt light bulb will operate the same with a lead-acid truck battery
that is capable of delivering 200 amperes, and not burn out one second
sooner that it would if operating on eight 1-1/2 volt AA flashlight
batteries. Now, having said that, it is certainly true that there are types
of batteries that differ in voltage output by slight amounts. Lithiums, I
believe, put out 1.55 volts per cell, and not 1.5 as do alkalines. Also, the
Ni-mhd type might put out only 1.2 volts per cell, so a bulb that is
nominally rated for 1.5 volts would last longer (because it burns cooler) on
a set of Ni-mhd batteries than it would on the same set of lithiums. But it
isn't the fault of the battery type, but rather the total voltage that is
impressed on the bulb filament. 12 volt lead acid batteries, for example,
can be charged up to around 14 volts, so one should be careful when one uses
them in devices that are meant for a nominal 12 volts, not because of their
internal resistance, but simply because 14 volts might smoke the
device.........


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