This is a practical battery for MacBook A1321 661-5211 661-5476. Under normal circumstances, the more cells decide the greater mAh. With 6 cells, this battery will satisfy your demand. It could give you the portability and efficiency during using especially when you are outdoors. And this battery will certainly make your laptop regain energy by the use of the high capacity battery. It provides you with the strong battery life, which is great to solve the problems of the short life and poor performance. With fine workmanship and strict examination, this battery is up to standard that you can trustingly use it without any worry.                                    Features               <br>
 You can get long hours of battery life without having to frequently plug into recharge with it<br>
 Using advanced cell technology and quality parts, it guarantees the stamina to meet your need of long work sessions and travel<br>
 Manufactured to the highest quality available with true enhanced performance<br>
 Powered by high quality cells<br>
 Can be charged while it is installed and the computer is connected to AC power   <br>
                                                            Specifications             Dimensions     (9.84 x 3.54 x 0.55)" / (25 x 9 x 1.4)cm (L x W x H)    <br>
 Weight     16.83oz / 477g    <br>
 Color     Black    <br>
 Voltage     10.95V    <br>
 Capacity     73Wh    <br>
 Battery Type     Li-ion Polymer Battery    <br>
 Cell     6 cell    <br>
 Compatible with     Apple    <br>
 Model     A1321       <br>
                                                             Package Includes            1 x Battery<br>
2 x Screwdriver<br>