Long life - A robust plate design and a ribbed container make this the ideal long life battery for applications on rough terrain and under extreme conditions. High Cranking Power - 19mm lugs and the largest intercell welds of their kind reduce electrical resistance and provide increased cranking performance. Leak proof - A labyrinth type duplex cover that makes the battery safer and leak resistant. Maintenance Free - The special hybrid alloy system minimizes water loss, making the battery maintenance free and promotes longer life. Ready to fit - Factory charged, wet shipped. Patented BIC vents