New batteries in old powerbooks?

[qtip919]

Does anyone know if the new powerbook batteries provide longer life in an older (1 year old) powerbook?

 

[xparaparafreakx]

If its just a simple replacement then same battery life as a new one.
If its a NewerTech battery with the extra cells in them, then it last longer about 30minutes or so.

 

[TheMonarch]

Do the new batteries look exactly the same as the original Apple ones? Or do they look/feel cheaper or have a different texture/feeling/material ?

Along with the charge indicating LEDs...