12V/125Ah AGM Super Cycle Batt. (M8)The AGM range has very low internal resistance making them particularly suitable for high current discharge applications such as for inverters, thrusters and winches as well as engine starting. The GEL model range offer best deep cycle durability and overall longer life. The use of high purity materials and lead calcium grids ensure that for both AGM and GEL products have particulary low self discharge so that they will not go flat during long periods