Extra Battery for my PowerBook 15"?

[Yaja123]

Im thinking of buying an extra battery.

Just wondering how long a spare battery would HOLD its charge without usage? Week? Month?

thanks.

 

[gammamonk]

I can't answer your question with any certainty, but I would like to recommend that you purchase a genuine Apple battery. Generic brands say they give you better run time, provide 1.21 gigawatts, and have a lower price tag, etc... But when it comes down to it, they suck. I've just gotten burned on this topic before, and wanted to warn you.

Good luck dude--

 

[caveman_uk]

I've got a second battery and I charged it a month ago and haven't used since then. It still seems to have nearly a full change (I pressed the little button on the bottom the other day-all lights green).Apparently though the batteries do loose charge over time - the rate depends on storage temperature amongst other things.