11/20/2023 0 Comments Best marine batteriesThe other critical issue is to charge them within a safe limit. Internal damage can lead to a short circuit, triggering a 'thermal runaway' that may lead to combustion. Lithium contains sodium and potassium, both highly reactive. Lithium-ion batteries - the new kids on the block - also have a fiery past, although the use of smart control systems to monitor their temperature and regulate their charging has yielded major improvements. Hydrogen is emitted from lead acid batteries during charging, while a battery immersed in saltwater can create a toxic chlorine gas that's harmful to the airways, eyes and skin. "The sulphuric acid (electrolyte) contained within a lead battery is corrosive, causing skin and respiratory irritation, eye damage. The second commandment warns: "All batteries art dangerous. If in doubt, ask for the impartial advice of a qualified marine electrician. There's a quality variance between popular battery makes, according to the experts, with specialist stores generally only supplying and supporting five or six of the 30-odd brands commonly available. That said, expensive isn't necessarily best, either. The first commandment of marine battery maintenance is: "Thou shalt not covet thy car battery", for it won't cope with the harsh vibration dispensed by the marine environment. Yes, they come in the same ubiquitous oblong case, they all deliver the same quantity of volts, but there's a stark difference in construction. Today, though, there are numerous battery types to suit specific roles, priced from the tens to ten thousands of dollars. Perhaps we're blase because the technology is two centuries old, when Alessandro Volta hypothesised that electricity was generated when two dissimilar metals met a moist intermediary. But very few boat owners are 'switched on', so to speak, until they're switched off and plunged into doom and darkness. So a battery deserves love and attention, care and affection. You are, effectively, all at sea in the modern marine vessel. Bilge pumps rendered impotent as bricks depth sounders powerless to warn of shallows GPS sets saying "GeePerS, we're lost!" No windlass, no thruster, no radio to issue a distress call. A world without watts is one of mute motors, lifeless lighting and defrosted fridges. Even the most guileless of flowers generates electricity to communicate with bees for life-giving pollination. It's the means by which the brain communicates and contemplates, allowing you to read and comprehend this sentence. It's electricity.Īn electrical impulse spawned deep in the sinoatrial node spurs the heart to beat. Contrary to the popular theory espoused in The Hitchhiker's Guide to the Galaxy, the answer to the question of life, the universe and everything is not "42".
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