Built for demanding marine power systems, this high output dual bank charger is designed to significantly reduce downtime and keep large 12V battery setups operating at peak performance. With 10 Amps per bank, it delivers efficient charging for both house and starting batteries while maintaining precise control through ISM (Infinite Sequential Monitoring) technology. Independent bank operation allows two batteries to charge or maintain simultaneously without sharing output or reducing performance. Each bank runs its own full ISM cycle, handling bulk charging, absorption, and float maintenance automatically to help maximize battery life and reduce maintenance effort. Engineered for harsh onboard conditions, the unit is UL marine ignition protected for safe installation in enclosed or fuel-adjacent compartments. A fully sealed, waterproof design paired with dual-bank architecture makes it a dependable solution for both recreational and commercial marine applications requiring reliable power management. Features:• 10 Amps per bank high-output charging• Dual independent battery banks• UL marine ignition protection certified• Supports lithium and lead-acid batteries per bank• ISM multi-stage smart charging systemSpecs:• Output: 12V, 20 Amp total (10A per bank)• Battery Range: 20Ah â 200Ah per bank• Battery Types: AGM, GEL, Flooded, Sealed Lead-Acid, LiFePO4• Protection Rating: UL marine ignition protected, IP67+ sealed housing• Charging System: ISM 4-stage automatic charging ISM smart charging system Dual independent charging banks Fast dual-battery recovery | Battery Tender WaveCharge Pro 2-Bank 12V 20 Amp BC & Maintainer