Polaroid High Capacity Canon LPE5 Rechargeable Lithium Replacement Battery (Compatible With: EOS Rebel T1i, XSi, XS ) Memory Free Formulation Saves Charging Time & Extends Battery Life Environmentally Responsible Design Allows Hundreds Of Images To Be Shot Before The Battery Needs To Be Recharged Replaces:Canon LPE5 7.4V/1100MAH