The Minn Kota MK-550 PCL is a five-bank, 10-amp-per-bank on-board charger engineered specifically around the demands of 12-volt lithium (LiFePO4) batteries while remaining fully compatible with AGM and flooded lead-acid batteries. Each bank is individually configurable to the correct battery chemistry, and the microprocessor-driven charging algorithm can automatically wake a lithium battery from standby — no manual intervention needed. Waterproof, shock-resistant, and saltwater-rated construction makes it a reliable permanent installation for any vessel.

Features:

• Per-bank battery-type selection supports 12V Lithium (LiFePO4), AGM, and flooded lead-acid — each bank gets a charge curve matched to its battery chemistry
• Automatic temperature compensation senses ambient conditions and adjusts the charge rate for accuracy in changing environments
• Low-line voltage compensation maintains a consistent, full-speed charge even when AC outlet output falls below 120V
• Battery equalization mode cleans and conditions flooded lead-acid batteries on every charge cycle, with a deeper equalization cycle available on demand
• Digital microprocessor control delivers a faster, more precise charge and can revive dead 12V lithium (LiFePO4) batteries from standby automatically
• LED indicator lights communicate charge stage, maintenance mode, error codes, and charge completion at a glance
• Automatic multi-stage charging manages voltage and current throughout the full cycle for a safe, optimized result
• Waterproof, shock-resistant, and vibration-resistant housing suitable for permanent on-board installation
• Backed by a full three-year replacement warranty

Specifications:

• Dimensions: 9.88 in x 11.75 in x 3.5 in
• Weight: 12.5 lb
• Charger Style: On-Board
• Number of Banks: 5
• Output per Bank: 10 amps
• Total Wattage: 750W
• Typical Charge Time: 4–6 hours
• Power Source: On-Shore AC
• Compatible Battery Types: 12V Lithium LiFePO4, 12V AGM, 12V Flooded Lead Acid
• 12V Lithium (LiFePO4) Optimized: Yes
• Waterproof: Yes
• Digital Control: Yes
• Automatic Temperature Compensation: Yes
• Battery Equalization: Yes
• Per-Bank Battery Type Selection: Yes
• LED Display: Yes
• Saltwater Compatible: Yes
• Battery Connection: Ring Terminal
• Warranty: Three-Year Replacement Warranty

Resources:

• Product Video