Designed for larger marine electrical systems, this 4-bank charger delivers independent charging across four separate 12V batteries at the same time. With 10 Amps available per bank, it supports fast recovery and steady maintenance for complex onboard setups without reducing output or sharing power between circuits. Each of the four banks operates as its own dedicated charging system, handling different battery conditions simultaneously, from deeply discharged units to fully charged batteries in maintenance mode. ISM (Infinite Sequential Monitoring) automatically manages the full charging process on each bank. Built for demanding marine environments, this unit is UL marine ignition protected for safe installation in enclosed or fuel-adjacent compartments. Its fully sealed, high protection design and multi-bank architecture make it ideal for vessels that rely on multiple independent battery systems running continuously. Features:• 10 Amps per bank independent output• 4-bank simultaneous charging system• UL marine ignition protection certified• Supports lithium and lead-acid batteries per bank• ISM automatic multi-stage charging controlSpecs:• Output: 12V, 40 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 smart 4-stage charging 4 independent battery banks 10A per bank charging ISM smart charging system | Battery Tender WaveCharge Pro 4-Bank 12V 40 Amp BC and Maintainer