12V 2.9AH SLA Battery replaces UB2.9-12T HZS12-2.9 12V 2.9AH Sealed Lead Acid Battery with T1 Terminals 3.11 in (length) x 2.20 in (width) x 3.90 in (height), 3.00 lbs 18-Month Warranty, 60-Day Money Back Guarantee Sealed AGM design makes batteries leak free. Maintenance free high performance Sealed Lead Acid (SLA) batteries.