In this article, we will discuss some avenues and options to design systems taking care of these aspects. The battery is the base load in the charging system and is required to prevent the voltage from spiking up, sometimes considerably many charge regulators cannot function or regulate properly without it. Unfortunately, there tend to be charging sources in marine DC electrical systems that are typically not designed to operate or cope without a battery in circuit in most instances: disconnecting the battery has a strong potential for causing malfunctions and sometimes considerable and very expensive collateral damage. A charge regulation failure or a complete discharge, for example, are such events. Protecting a lithium battery from damage may ultimately require isolating it from the system following a dangerous adverse event. A lithium battery quickly gets totally destroyed and becomes a fire risk in the same circumstances.Īnother main difference between a lead-acid and a lithium electrical system is that, in the second instance, the battery may become entirely disconnected from the installation, which can result in considerable damage Overcharging or flattening of a lead-acid battery is detrimental to its life.
While this may come across as provocative, it is nevertheless very true. Let’s consider two key statements:Ī key difference between a lead-acid and a lithium battery is that the former can be damaged safely Integrating a lithium battery bank on board a vessel introduces a few additional constraints and challenges that don’t exist with lead-acid batteries.
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This article is part of a series dealing with building best-in-class lithium battery systems from bare cells, primarily for marine use, but a lot of this material finds relevance for low-voltage off-grid systems as well. Last Updated on 22 February 2020 by Eric Bretscher
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