AGM batteries are more suitable for short-time delivery of very high currents (engine starting) than gel batteries. 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. AGM stands for Absorbent Glass Mat. In these batteries the electrolyte is absorbed into a glass-fibre mat between the plates by capillary action. The use of high purity materials and lead calcium grids ensure that the battery has particularly low self discharge so that it will not go flat during long periods without charge. The battery is supplied with M5 drilled flat copper terminals ensuring best possible connection contact and eliminating the need for battery terminals. Manufactured under ISO 9001 quality standards, they are compliant with both CE and UL specifications in ABS fireproof containers and come with Victron's 2 year world-wide warranty.