VICTRON ENERGY AGM 12V/90Ah DEEP CYCLE BATT solar battery. The AGM range has a very low internal resistance, making them very suitable for uses involving high discharge intensity, such as inverters, drives and winches. AGM and GEL batteries have a very low self-discharge, allowing long periods of storage without charging. Both ranges have flat copper terminals with M8 bolts, which ensure the best possible contact and eliminate the need for battery terminals. The batteries are CE and UL compliant and their containers are made of fire-resistant ABS, and come with Victron Energy's two-year warranty with worldwide coverage.