Apple 145 manual Maximizing battery life

Maximizing battery life

To maximize battery life, discharge and then recharge the battery completely once every 90 days. Just use the computer as you normally would, but ignore the low-power messages that appear on the screen. (Make sure to save your work, however.) When the computer goes to sleep automatically, recharge the battery completely before using that battery again. You can do this in either of two ways:

mLeave the battery in the computer, plug in the power adapter, and let the battery recharge overnight, or

mRemove the battery from the computer and recharge it in a recharger for 5 hours (if you are recharging just one battery) or 10 hours (if you are recharging two).

Your battery will last longer if you recharge it at or slightly below room temperature.

With proper care you can expect your battery to last for at least a year. If you notice that the battery no longer holds a charge for as long as it should, you may need to replace it.

108 Chapter 7: Power Management