12V 5.1AH Sealed Lead Acid (SLA) Battery - T1 Terminals - for ZB-12-5.1 Free Shipping 1-3 day delivery if ordered before 3pm EST 3.54 in (length) x 4.21 in (width) x 2.76 in (depth), 4 lbs 18-Month Warranty, 60-Day Money Back Guarantee Sealed AGM design makes batteries leak free. 12V 5.1AH Sealed Lead Acid Battery with T2 Terminals