2780 Views 3 Replies Latest reply: Feb 12, 2010 12:56 PM by sjlee0
It's time to replace your battery. While there is what might be called, as you say, "natural decay"... a gradual loss in capacity over time, this is generally not the major cause of battery degradation. The battery in your machine is good for about 300 cycles... you should expect it to last somewhat past this point with decreasing capacity. In the data you have posted, you have over 570 cycles. That is pretty much beyond the lifespan of the battery. It has led a good long life. At this point, you can expect inconsistent behavior such as the random shutdowns you are experiencing.
"Condition: Replace Soon"
*About "Replace Soon"*
+"If you see "Replace Soon" in the Battery menu, the battery may still be usable and hold some charge, however, you might consider battery replacement. If the battery in the Mac portable is removable, try removing and reseating it. Make sure the power cord is connected to your computer and a power outlet. If the battery is not removable, it may be necessary to reset the System Management Controller (SMC).+
+If "Replace Soon" continues to appear after reseating the battery or resetting the SMC, consider replacing the battery or taking the computer to an Apple Authorized Service Provider."+