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2008 MB unibody battery health

S

shttngdcknps

macrumors newbie
Original poster
Mar 29, 2010
17
0
Ive recently noticed that my mb's battery has only held a charge for a few hours so after downloading cocnutbattery i have been through 245 cycles and only hold 29% capacity(1224/4100mAh) but today after my battery got to 18% charge i got a message to "service battery" then a minute later my battery shot up to 35%.. what the hell is going on here?

also i calibrated my battery a few days ago
 
Sound like you have a faulty battery.

I have the same computer, but mine has been through 607 load-cycles and is still at 90% health.
 
Seems like you have a defective battery. Since the battery is below 300 cycles, Apple will replace it for free because the capacity is below 100%.
 
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