Exide 34MDCORB Orbital Sealed Deep-Cycle VRLA AGM Marine/RV Battery Up to 100 minutes of reserve capacity to operate on board accessories Sealed valve-regulated battery is non-spillable and can be mounted upright or on its side in your boat, in your engine compartment or inside the cabin Highly absorbent glass mat separators provide cushioning for better vibration resistance Sealed maintenance-free design produces no gases under normal operating conditions 18 Month Free Replacement Warranty from Date of Purchase