Batteries

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Batteries

Snoshoe
Well, I had an odd observation over Christmas.

As much as I dislike led lights, battery operated or not, I decided to try a small string of solar powered ones, after noticing some, neighbors had didn't hurt my eyes as badly as the rest.

It has one NiMH rechargable battery with it. I was really happy with this, as I felt nothing bad from it, at least not over about 6" away. While the other lights are hard to stand for long as I've mentioned.

I didn't get it recharged one day and decided to use an alkaline one in it's place (not enough sun to do the job right now).

So, I stuck it in and turned it on, and yowie! The dirty electricity from that thing was strong, almost visible if you would, in comparison to the NiMH one. I could feel that several feet away and it was totally nasty.  After the other was charged, I put it back in hoping it was still fine, and it was.

I tried the alkaline again just for a test. Same reaction. This says to me that the frequency of the elements they are made from definitely comes into play, as their vibration rate is going to be affected by electricity going through also. The same as happens in fluorescent bulbs.

I noticed something similar a couple years ago when they started putting the lithium standard size batteries in the stores also. That got my attention right away, being lithium's effects on the body, that they can be more hazardous as mentioned in rfid post, in spite of their longer life span.  

I don't have one handy the correct size currently, to check that out in these leds to compare also, but it's just something else to consider.

~ Snoshoe

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Re: Batteries

BiBrun
I would guess that the lights have some kind of current regulator.
That's the best way to run LEDs bright without damaging them.
The system perhaps was designed for the NiMH batteries,
but when the voltage is different from that a switch-mode voltage
converter kicks in.  If this theory is right you may notice a problem
when the NiMH battery is almost out of juice.  I would expect it to
be detectable with an AM radio, though with some new systems you
have to tune to the very top of the dial...
Bill

On Mon, Dec 27, 2010 at 6:18 PM, snoshoe_2 <[hidden email]> wrote:

>
>
> Well, I had an odd observation over Christmas.
>
> As much as I dislike led lights, battery operated or not, I decided to try
> a small string of solar powered ones, after noticing some, neighbors had
> didn't hurt my eyes as badly as the rest.
>
> It has one NiMH rechargable battery with it. I was really happy with this,
> as I felt nothing bad from it, at least not over about 6" away. While the
> other lights are hard to stand for long as I've mentioned.
>
> I didn't get it recharged one day and decided to use an alkaline one in
> it's place (not enough sun to do the job right now).
>
> So, I stuck it in and turned it on, and yowie! The dirty electricity from
> that thing was strong, almost visible if you would, in comparison to the
> NiMH one. I could feel that several feet away and it was totally nasty.
> After the other was charged, I put it back in hoping it was still fine, and
> it was.
>
> I tried the alkaline again just for a test. Same reaction. This says to me
> that the frequency of the elements they are made from definitely comes into
> play, as their vibration rate is going to be affected by electricity going
> through also. The same as happens in fluorescent bulbs.
>
> I noticed something similar a couple years ago when they started putting
> the lithium standard size batteries in the stores also. That got my
> attention right away, being lithium's effects on the body, that they can be
> more hazardous as mentioned in rfid post, in spite of their longer life
> span.
>
> I don't have one handy the correct size currently, to check that out in
> these leds to compare also, but it's just something else to consider.
>
> ~ Snoshoe
>
>  
>


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