Please check compatibility with your laptop carefully as laptop models do vary. Ensure you have the correct Tip Size, Output Voltage and Amp Rating from your previous charger. The AC power adapter enables you to operate your laptop or charge the battery from electrical power outlets. If you are running your computer on AC power with a battery installed, the adapter charges the battery ( if needed ) and maintains its charge. Tip Size: 7.4m X 5.0m Output: 19.5V 4.62A UK Three-Pin Plug Power Cord Compatibility: Dell Latitude E6410, Dell Inspiron Series 1150, 1420, 1501, 1520, 1521, 1525,1720,1721, 300m, 500m, 510m,6000, 600m, 630m, 6400, 640m, 700m, 710m, 8500, 8600, 9200, 9300, 9400, E1405, E1505, E1705 Dell Latitude Series 100L, X1, X300, XT Tablet PC ,E5400 , E6400 Dell Latitude D Series D400, D410, D420, D500, D505, D510, D520, D530, D531, D600, D610, D620, D630, D630c, D800, D810, D820, D830 Dell Latitude M Series M2300, M4300, M60, M65 Mobile Workstation, M70 Dell Precision Workstation Series M20, M60, M70 Dell Vostro Series 1000, 1310 , 1400, 1500 , 1510 Dell XPS Series XPS M1210, XPS M1330, XPS M140 , XPS M1530 , XPS M1730 , XPS 1530 , XPS 1710 Dell Studio Series Studio 1735, Studio 1737, Studio 1500, Studio 1700, Studio 17, Studio 15 Please check compatibility with your laptop carefully as laptop models do vary.