Motorola Droid Razr Maxx HD Cell Phone Battery (Li-Pol 3.8V 1900 mAh) Internal Battery - Replacement For Motorola EV30 Cellphone Battery - Installtion Tools Included (Li-Pol 3.8V 1900 mAh) Internal Battery Replacement For Motorola EV30 Cellphone Battery - Installtion Tools Included Made with high quality Japanese cells. 100% compatible with your OEM battery. 1 year warranty