Natural Science Forum / Chemistry / Electrochemistry / August 2004

I have just bought some nice 2100 mah AAs, and a not so nice TL960
battery charger (see
http://www.amondotech.com/index.asp?PageAction=VIEWPROD&ProdID=526).
Basically the charger seems to have a very simple 10 hour timer (i.e.

I heard a superstition/curse from a friend that you should never install a Fire
Alarm Battery (or any other critical battery) on Sunday, or it will be more
likely to fail. Anyone heard about it?

Yes, I need some electricity in my intestines, this makes me horny !

Let me know if it explodes.

Put four standard Energizer batteries in a NiCd or Renewal charger and plug it
in. Be brave! The worse that can happen is the battery will explode and spill
all sorts of sh!t inside your charger. Not likely to happen though.

I would like to find out if anyone can recommend a good Lithium-ion
charging IC to use for a 3 cell Li-ion battery pack. I understand that
a Li-ion cell should be charged using a constant current, then
constant voltage method but am not sure of which IC to use for this.

I've tried to create copper chloride using copper electrodes in water
with dissolved iodized table salt.  The water becomes dark green
within the first 15-20 minutes using 12 vdc from a computer ps.  It
then becomes red.  From what I've read about copper chloride, it

Having a (surefire) flashlight which uses 3 123A (3V lithium) batteries
(which in Europe costs about 3.5€, like 3.7$ each), I was wondering if
there is any way to make my flashlight rechargeable.
It seems that there is not still any 123A rechargeable battery (is it

Greets to All
I'm trying to find out which wavelengths distilled water absorbs?  Also if someone can recommend
a machine at a very low price in which I can test these samples myself.
TIA