Alcatel 2017B Tablet Battery (Li-Ion 3.7V 700 mAh) Rechargable Battery - Replacement For Alcatel OT-880 Cellphone Battery (Li-ion 3.7V 700mAh) Rechargable Battery Replacement For Alcatel OT-880 Cellphone Battery Made with high quality Japanese cells. 100% compatible with your OEM battery. 1 year warranty