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qtip919
Nov 15, 2005, 02:35 AM
Hi,

I noticed that the new powerbooks have batteries with longer batttery life. Is it possible to use these new batteries in older Al powerbooks?

I have a 1.5ghz AL powerbook purchase last summer and was hoping for more battery life :)



caveman_uk
Nov 15, 2005, 03:12 AM
Hi,

I noticed that the new powerbooks have batteries with longer batttery life. Is it possible to use these new batteries in older Al powerbooks?

I have a 1.5ghz AL powerbook purchase last summer and was hoping for more battery life :)
The batteries are the same. The extra battery life comes from the laptop itslef being more energy efficient. Specifically the processor can now step down to 1/4 of max speed as well as 1/2 (which is what it did before). This lower clockspeed and concomitant lower voltage allows the battery to last longer.

Also the RAM is marginally more energy efficient.