Auxiliary GEL/AGM battery, specially adapted for leisure activities. The gel technology allows rates of discharge of up to 100% of battery capacity so as to benefit from the maximum power available. Watertight and maintenance-free (very low rate of self-discharge: 1% to 3% per month). Protected against pressure changes and designed to prevent gas accumulating inside the battery. Discharge limit voltage: 10.6 V. With adapters for attaching self-tightening lugs and lugs with butterfly nuts.