12V 20AH T6 SLA Battery replaces 51814 6fm17 6-dzm-20 6-fm-18 lcx1220p Chrome Battery 12V 20AH - 240 Watts - T3 terminals - 12.45 lbs (H)6.59" x (L)7.15" x (W)3.03" 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