HW900 - For Dell E4300 E4310 E4320 Base Battery 11.1V 48Wh - 365PowerSupply.com - Replacement Laptop Power Adapters,Desktop Power Supply & Server Workstation PSU.
Amazon.com: DR. BATTERY Latitude E4300 E4310 Battery Compatible with XX327 0FX8X 312-0822 451-11495 453-10039 312-0823 451-11494 CP289 FM338 FM332 G805H HW898 XX337 XX334 YP463[11.1V/4400mAhv49Wh] : Electronics