View Full Version : Powerbook AC

Feb 22, 2005, 01:45 PM
yesterday my ac adapter for my pb died. i had to immediately get a new one since my batteries were not charged and i needed to be online for many hours anyway.

the only one available (in my price range) was a 65 watt version, so i got it. i know may old one was a 45 watt and other people had recommended the 45W...im i getting myself in trouble by using the 65W?

Feb 22, 2005, 01:51 PM
Well, if you've used it and haven't fried your iBook already, you're fine. The additional wattage will just go unused. Some adapters will fry a system if they push too much amperage, and others will feed it only if needed.

Still, there's a chance that a regulator on your iBook is now dumping a ton of extra power directly out as heat because the adapter is feeding too much into the box. If your iBook acts the same and isn't suddenly glowing red-hot, you're probably OK.

If you haven't plugged it in yet, though, I'd be wary. You might be just fine, and you might end up with a nice white paperweight in about a tenth of a second.

Feb 22, 2005, 01:56 PM
powerbook seems fine after a day..no hotter than normal..
there are differences in the voltage in/out and amperage between my old adapter and the new one though. (according to the labels)

diamond geezer
Feb 22, 2005, 02:04 PM
Apple no longer sell the 45W adapter as a retail item, they expect you to use the 65W.

I use a 65W adapter on iBook all the time. They are designed to work together.