12V 8.5AH Sealed Lead Acid (SLA) Battery for APC BACK-UPS ES750G RBC17 Zipp Battery 12V 8.5AH - 102Watts - T2 terminals - 5.64 lbs (H)3.72" x (L)5.94" x (W)2.56" Polarity: [+ -], Maintenance Free and Fully Charged Sealed Lead Acid and AGM Design Prevents Leaks and Corrosion Unmatched 60 Day Money Back Guarantee with an Exceptional 18 Month Warranty Free Shipping 1-3 days- average 2 days- occasionally 4 days in remote areas. Ships same day if ordered before 3pm EST