Whether to go for lithium ion or lead acid batteries in marine applications is a critical decision for boaters that want to achieve maximum efficiency and durability. At the same time, the battery energy storage system companies are working hard to develop new products that will be able to meet the stringent requirements of the marine environment. This article investigates the positive and negative sides of lithium ion and lead acid batteries, especially durability, to help boaters make an informed decision.
Batteries in Marine Use
Lithium ion batteries which are supplied by the leading battery energy storage system companies are becoming more and more popular in marine applications because they have many advantages over the traditional lead acid batteries. Such factors are higher energy density, lighter weight, and longer lifespan. Lithium ion batteries can be usually charged up to hundreds to thousands of times with little degradation which makes them highly durable and reliable for marine use.
Advantages
Lithium ion batteries offer several distinct advantages that make them a superior choice in terms of durability and overall performance:
1. Higher Tolerance to Deep Discharges: Lithium ion batteries are more resilient to deep discharges than lead acid batteries without incurring significant harm, which is crucial in marine applications where the full battery capacity may be utilized.
2. Less Maintenance Required: Unlike lead acid batteries, lithium ion batteries do not require regular maintenance like water top-ups, which decreases the chance of damage from negligence of maintenance.
3. Longer Operational Life: Battery energy storage system companies state that the lifespan of lithium ion batteries can be up to 10 years under the right conditions, which is much longer than lead acid batteries.
Lead Acid in Marine Applications
Even though the custom lithium ion battery has been gaining popularity, the lead acid battery is still relevant in marine applications because of its lower initial cost and well-established technology. They are a proven and simple technology that many boaters are familiar with, which can be a decisive factor for those who are hesitant to switch to newer technologies.
1. Heavier Weight: Lead acid batteries are much heavier than lithium ion and this can lead to the reduction of the speed and fuel efficiency of a vessel.
2. Lower Energy Efficiency: They have lower energy efficiency, especially when they are subjected to high discharge rates, which are usually typical for many marine applications.
3. Frequent Maintenance: Lead acid batteries require frequent maintenance to ensure their effective operation and long life, which includes checking and topping up electrolyte levels and cleaning terminals to prevent corrosion.
Environmental Considerations
From an environmental standpoint, lithium ion batteries are often viewed as more sustainable than lead acid. They are more energy-efficient in their operation and, at the end of their life cycle, lithium ion batteries are easier to recycle than lead acid, which contains more toxic substances that can be harmful if not disposed of correctly.
When durability in marine applications is concerned, lithium ion batteries from battery energy storage system companies offer better advantages than lead acid batteries. Whether you are retrofitting an existing vessel or building a new one, lithium ion batteries represent a smart investment for serious sailors who want to take advantage of the latest in battery technology.
M Umair 
Abdul Basit