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Battery Chargers
High-quality marine battery chargers are specifically designed to withstand the harsh marine environment, offering features like waterproofing, corrosion resistance, and protection against shock and vibration. Many modern models are "smart" chargers that automatically adjust the charging cycle to protect and prolong the life of your batteries. Top brands include: Attwood Marine, Guest, Masterevolt, Minn Kota and ProMarines.
Onboard marine battery chargers
Onboard chargers are permanently installed in your boat and can charge multiple batteries simultaneously from a single AC outlet.
How to choose a marine battery charger
- Battery type: Ensure the charger is compatible with your battery chemistry. Common marine batteries include lead-acid (flooded), AGM, GEL, and lithium-ion.
- Onboard vs. portable: Onboard chargers are permanently mounted and convenient, while portable chargers offer more versatility for use on multiple batteries or vehicles.
- Number of banks: Choose a charger with the correct number of banks to match the number of batteries you need to charge and maintain simultaneously.
- Amperage: The charging amperage determines how quickly a battery is charged. Higher amps mean faster charging but might be unnecessary for maintenance.
- Safety and durability: Look for features like spark-proof connections, thermal protection, and a high waterproof rating (e.g., IP67 or IP68) to withstand the harsh marine environment.
- Special features: Some chargers offer advanced features like temperature compensation, battery repair, or automatic desulfation to improve battery health and extend lifespan.