VMAX600 Group 1/2 U1 Deep Cycle Rechargeable AGM Battery Replacement for Universal UB12180 Replaces 17Ah 12V 20Ah Scooter Battery 1-L=7" W= 3" H= 6.6". Screw in post Terminal. Float Service Life span of 5 to 8 years. 2-Superior custom built Military Grade Alloys. Maintenance free. No dangerous toxic gas release. 3-Sealed Non Spill able Non Hazardous Construction. Approved for air, ground and maritime transportation. 4-Warranty applies only if sold by an Authorized Seller. Amazon Authorized seller: bargainshore. 5-goto http://www.amazon.com/shops/bargainshore for VMAXTANKS categorized offers, selection and more savings on package deals for two or more batteries.