Banshee batteries are designed to withstand rigorous deep charges as well as long slow recharges.
Our group 31 marine battery is rugged, powerful, resilient, and should be the only battery you rely on for cranking, igniting, and lighting. The Banshee marine deep-cycle battery is a direct replacement for Optima D31M batteries and guarantees excellent recharge capabilities for long lasting performance.. Banshee 31M-Banshee-7 Group 31 Deep Cycle AGM Marine Battery Banshee marine batteries are produced and manufactured using only the most up to date materials.