Marine Battery

Voltage (V):Most marine systems use 12V batteries, but some larger vessels may use 24V or higher systems.

Capacity (Ah):Higher capacity provides more power for running electronics and appliances for extended periods.

Marine Cranking Amps (MCA):Similar to CCA, this measures the battery’s ability to start the engine in marine environments.

Reserve Capacity (RC):Indicates how long the battery can power essential loads if the charging system fails.

Chemistry:Consider the pros and cons of different chemistries (flooded, AGM, gel cell, lithium-ion) based on your budget, maintenance preferences, and performance needs.

Boat Size and Type:Larger boats with more electronics and appliances will require higher capacity batteries and potentially a combination of different battery types (starting, deep cycle, or dual-purpose).

Engine Starting Requirements:Determine the cold cranking amps (CCA) needed to start your engine reliably, especially in cold weather.

House Load:Calculate the total power consumption of your onboard electronics, appliances, and accessories (lights, fish finders, refrigerators, etc.) to determine the necessary deep-cycle capacity

Trolling Motor Usage:If you use a trolling motor, factor in its power requirements and runtime needs when selecting battery capacity.