Pro Mariner 31515 ProMar1 DS 15 Amp 3 Bank Marine Battery Charger

The Pro Mariner 31515 ProMar1 DS is a 12-volt 15-amp waterproof marine battery charger featuring three 5-amp charging banks designed to charge three 12-volt batteries. This Generation 3 model features advanced digital charging technology engineered specifically for the demanding marine environment.

Key Features:

• Four sequential charging modes: Analyzing, Charging, Conditioning, and Auto Maintain Mode
• Fully automatic 4-stage digital charging algorithm proven to extend battery life
• Safe for both short-term and long-term charging applications
• Dual mode charge status indicator with battery and wiring fault detection
• Rugged shockproof construction for marine durability
• Pre-wired with waterproof inline DC fuses and nickel-plated copper ring terminals
• Quiet EMI design meets US FCC emissions requirements

Each bank is designed to charge a single Group 24 to 31 battery not exceeding 125AH per bank. Common configurations include maintaining a single 12-volt starting battery and two 12-volt batteries in series for a 24-volt trolling motor, or three 12-volt batteries in series for a 36-volt trolling motor. The Auto Maintain mode ensures batteries remain fully charged during storage periods without risk of overcharging.