Date: Sun, 28 Jan 2001 09:18:35 -0800
From: =?iso-8859-1?Q?=B7TechnoDragon=B7?= <[EMAIL PROTECTED]>
Subject: Re: battery
>Is it possible to open a dead battery pack for a 70 and replace the cells.
Theocratically...
>What is the best way to open it, and where can one by the Li-ion cells?
I have no idea, but I will soon find out myself, and, unfortunately,
you'll find them on the dark side of the moon. Li-Ion battery cells are
not, and will never be sold to the public. This is because if you rebuild
your battery pack wrong, it'll explode, if you short Li-Ion batteries
together after giving them a full charge, they'll explode. They are not
sold to the public because of liability reasons. Some schmuck out there
goes out and buys a bunch of Li-Ion cells and rebuilds his camcorder's
battery. He then starts to charge it, BAM!, it explodes and he has to go to
the hospital and have pieces of camcorder surgically removed from his rear
end. A wek later, everyone's showing up in court as he sues the tiny
electronics store and the battery company that sold him the batteries for 5
million dollars for not properly warning him of what will happen if Li-Ion
batteries are not charged properly. (please have your flashback to the
court case years ago with the woman suing McDonalds for millions of dollars
for her spilling scalding hot coffee on herself in her car, at this time
now please)
Plus, Li-Ion batteries could theoretically be used as a weapon. A
friend and I were joking that you could take a battery pack and short it
then throw it like a grenade and blow something up.
"Sir, we're all out of grenades and they've pinned us down. If we
just had one more explosive charge, we could break through."
"Wait a sec, doesn't Cliff have that Vaio laptop?"
"Cliff, does your laptop have a full charge?"
"Yeah."
"Toss us it and a paper clip."
"Why?"
"Just do it!"
...
"There, push in the clip and toss the battery when I say now!..."
Then of course, there's the terrorist potential of laptops...
>beep, beep, beep<
"Sir, I'll have to ask you to stand over there while I open your bag,
you have this suspicious looking block in it..."
"Sure, feel free."
"What is this, it's a big black plastic block the size of two bricks
tied together, with a cable running out of it, and with a digital display
on it. What is this thing?!?"
"It's a replacement battery for my Libretto. I got sick of batteries
lasting 2 hours or so, so I built my own, now I get 48 hours on a full
charge. >very big grin<"
"Why does it have a display on it?"
"To show me how much of a charge is left, see, when I push this
button, it's counting down now from 46 hours because I was using it before."
"I'll have to get my supervisor out there to open it up and examine
it..."
"Not a prob."
"Ok sir, the chemical sensors show that you have no explosives on
your person, and after opening up the battery pack, all there is is a big
bunch of batteries tied together and a little circuit board with a PIC
micro controller. So, I guess you're free to go into he plane."
"Sure, no hard feelings."
"Oh, BTW, do you have a card, I'd like you to build one of those
battery packs for myself. I'm sick of my laptop running out of juice."
"Sure, here you go..."
After heading out over the pacific ocean...
"Let's set this thing for 5 seconds, there, stick it to the window,
there... FOR THE GOLF BALL LIBERATION ARMY! YOU SHALL BE KNOCKED INTO HOLES
NO MORE! FOR MY PEOPLE AND THE DEMOLITION OF A SPOR..." >KABOOM!<
Hey, it could happen, this is why we don't see Li-Ion battery cells
for sale to the general public.
Although I'm going to rebuild my battery pack, but with NiMh
batteries and a special charging circuit. It'll have a gutted battery pack
that'll run a little cable out to an external block of NiMh battery cells.
I hope to get at least 12 hours on a full charge for my libretto.
I'll post the results to the list, along with schematics.
And, no, when you short HiMh's together, they don't explode like
Li-Ion ones do, so the Secret service has no cause to raid me for buying
rechargeable batteries for terrorist actions. :)
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| the ·TechnoDragon· |
| [EMAIL PROTECTED] |
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| http://broker.dhs.org/~tdragon/ |
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