AGM deep cycle batteries have a much longer cycle life if they are exhausted to a small degree and then recharged, rather than draining all their power and recharging all the away. Great question!

This makes the HGL Series Battery ideal for camping and caravan applications. Deep-cycle batteries typically feature thick plates with a high-density active material. The thick battery plates allow ...

Fullriver's AGM "DC ... DC200-6B deep cycle battery uses a different chemistry for the plates' active paste material, and a slightly stronger acid. This chemistry allows for a much longer life in deep ...