Lead-acid batteries for ships play an irreplaceable role in ship power systems. The followi'ng is an analysis from three dimensions: core role, technical characteristics<, and application scenarios:
1. Core role: the starting cornerstone of ship power systems
Lead-acid batteries are the core power source for starting the main/∞auxiliary engines of ships. Their high starting current output capacity (up to hundreds of amperes) can iπnstantly drive the engine crankshaft to rotate, ensuring that the ship can start reliably δin harsh environments such as low temperature and humidity. For example, the starting current requirement of the main engine of a merchant ship αis usually in the range of 500-1000A, and lead-acid batter₹ies can meet this requirement by optimizing the plate design (such a§s increasing the thickness of lead-calcium alloy). In addition, its transient power output characteristics (continuous discharge for more than 10 seconds) c•an stably maintain the voltage of the engine ignition system and avσoid startup interruptions.
2. Technical characteristics: performance advantages matching s hip working conditions
1. High cycle life: The battery using deep cycle le↓ad-acid technology can withstand 300-500 deep charge and disc™harge cycles, which is suitable for the working conditions of§ frequent start and stop of ships.
2. Weather-resistant design: Through sealed valve control techn±ology (VRLA) and ABS engineering plastic shell, it can resist ↑salt spray corrosion (IP67 protection level) and extreme temperatures of -20℃ to 50℃, for example₹, it can still work stably when ocean-going ships cross tropical and cold zones.
3. Safety redundancy: The built-in safety valve can release the hydrogen and oxygen mixed gas gene★rated by overcharging to prevent explosion; the electrolyte adsorption ₽technology (AGM/GEL) avoids the risk of leakage, which meets the safet✘y certification requirements of the SOLAS Convention for ship batter ies.
III. Typical application scenarios: covering the key systems of the whole ship
1. Main engine starting system: providing starting power for the main diesel¥ engine and auxiliary engine. For example, the main engine starting batte"ry pack of a container ship is usually composed of 4-6 12V/200Ah batteries∞ connected in series, with a total voltage of 48-7γ2V.
2. Emergency power supply guarantee: in the event of a power failure on the wholεe ship, it provides at least 18 hours of continuous power≤ supply for navigation radar, VHF communication equipment, emergency <lighting, etc., meeting the requirements of IMO MSC.252(83) ±resolution for emergency power supply of passenger ships.
3. Auxiliary equipment power supply: driving the electric pumps of hydraulic equipment such as s§teering gear, anchor windlass, capstan, as well as equipment such as air co←nditioners and refrigerators in the living area. For example, the refrigerated battery pack✘ of a fishing boat needs to support 24-hour uninterrupted o±peration in an environment of -18℃.
