Natural Science Forum / Chemistry / Electrochemistry / January 2008

Do Li-Ion cells have built-in charger circuitry?
Numerous IC makers offer single chip, low component count, charger solutions, yet when I
remove the plastic cover of a mobile phone battery I find 2 unmarked chips, and I cannot work
out the function - charge/regulation/safety - or ...

I've been concerned that my laptop battery (Lithium Ion, in a Compaq
Presario notebook) has been running down too quickly.  I charged it up to
100% level, then ran Battery Eater Pro.  I watched a battery meter go down
from 100% to 50% charge in about 10 minutes.  Then suddenly ...

Hey guys. As the subject says, does anyone know what the highest
capacity AAA battery is in the UK, and where can I buy one?
Kind Regards,
Matt