This battery is made from the highest quality lithium-polymer battery cells that charge faster and last longer. Cheaper, lower quality batteries can wear out nearly 6 times faster than ours. We're so confident in the quality of our batteries that we back each one with a 2 year warranty and 30 day guarantee. This battery replaces the original A1185 battery in 2006-2009 13" MacBooks, including the MA561 and MA561LL/A models. Additional compatible laptops and battery part numbers can be found below.
Longer Battery Life
With this 10.8 volt battery you can expect about 4.5 hours of rechargeable battery life with the 13" MacBook A1185 battery when new. Turning down your screen brightness and closing unused programs can get you even longer battery times. depending on your energy use. The higher capacity battery cells inside this cartridge have an energy capacity of 55 Whr. This battery will be compatible with batteries rated at 4800 mAh capacities while providing up to 20% more run time.