External Laptop Battery Charger for Dell XPS M140 M1210 M1330 M1530 Output: DC12.6V 1.8A DC Connecter size: Special 9 PIN (GCD2R9B) (Please note:it is 9 pin,for charge battery only) Please make sure your battery rating is 11.1V or 10.8V before using The external battery charger is used to charge battery only.You need to remove battery from laptop and charge it. Full 12 months warranty!!