Have you ever annoyed about the low power of your laptop battery when you are outdoors? Look at this battery which is with 4 cells to satisfy your demand. It could give you the portability and efficiency during using. This battery is compatible with Samsung NP-R20 NP-R20F NP-R25 NP-X1 NP-X11. 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             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             Voltage     14.8V    <br> Capacity     2200mAh    <br> Battery Type     Rechargeable Li-ion Battery    <br> Cell     4Cell    <br> Color     Black    <br> Weight     11.29oz / 320g    <br> Dimensions     (10.62 x 1.38 x 0.87)" / (27 x 3.5 x 2.2)cm (L x W x H)    <br> Compatible with     Samsung NP-R20 NP-R20F NP-R25 NP-X1 NP-X11     <br>                                                             Package Includes            1 x Battery<br>1 x User Manual<br>