On 29/1/03 1:47 pm, "Ivan Drucker" <ivanxqz at yahoo.com> wrote: > You got it: III's and IV's offer more life, and Apple doesn't recommend a > Type I or II on the more recent Duo's (280c, 2300c). On those machines, > even a Type III doesn't last that long, 2 hours absolute tops. Thanks Ivan, That's certainly interesting. Here in the UK, a replacement battery of a type I nature will cost about £50-60 whereas a Type III or IV goes to £92 I heard there are ways to rebuild your own battery with cells purchased from a company, which would be much cheaper as long as you're fine with the technical side of things, andI was wondering if its an easy process to find Type III or IV cells yourself for this purpose? In my case, it would be to revive a totally dead battery on a Powerbook Duo 230.