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Tuesday, November 24, 2009

Battery for Boats: the Starting, Deep Cycle, and Marine Battery

By Scott Immers

For boating buffs, they'd know that one integral part of their boats is the batteries. For someone new in the business, this article will provide basic information on batteries for your money's worth.

If you look at the e-stores, marinedirect.com.au of Australia and offshorewakemarine.com, you will notice that they are selling what they call the marine battery. These are more affordable because they sell at $70.13 to $165.26 whereas other batteries sell for $104.88 to $294.21 (for starting batteries) and $96.16 to $310.43 for deep cycle batteries.

The most common boat battery is the lead acid battery. It is popular because it is cheaper to purchase and maintain. However, it is heavier than other kinds, its lifespan is shorter than more advanced ones, the lead component is toxic, and forms hydrogen bubbles which when mixed with air, forms hydrogen gas, a highly explosive substance.

The batteries for boats are commonly lead acid batteries, similar to the ones in your cars. Although batteries used in boats are tougher to endure the rough seas. Lead acid batteries are so called because they have plates (these positive and negative plates are needed to conduct a charge) made of lead and sulfuric acid inside its rectangular casing.

On the other hand, deep cycle batteries are made up of thicker plates of solid lead. It provides steady surges of electrical energy for the boat's accessories which also includes the trolling motor (a secondary propulsion or force to quietly maneuver boats), radio, lights, instruments, and the like.

The differences of these battery types lie in the material used to create plate materials (these positive and negative plates are necessary to create voltage). In starting batteries, lead sponges are used to create plates. This fine spongy material increases the plates' surface area therefore allowing the battery to provide huge amounts of energy in a short period of time. Deep cycle batteries, on the other hand, have thicker plates made of solid lead because if a fine spongy material is used, the plates disintegrate quickly. Marine or hybrid batteries also use a spongy material but these are cruder and heavier than that used in starting batteries, so they can deliver large amounts of power and last long enough to be used like deep cycle batteries.

Now we come to the marine battery. This is also called the hybrid battery because it can be used as a starting battery and as a deep cycle battery. This is made possible by its plate that is made of a coarse sponge that is stronger than that of a starting battery, though not as strong as that of the deep cycle battery.

In Australia these batteries can be bought from stores where starting batteries cost between $207 and $230 and deep cycle batteries cost $160 to $599. In other e-stores like batteries are $104.88 to $294.21, deep cycle batteries can be purchased from $96.16 to $310.43, and marine batteries are $70.13 to $165.26. - 21392

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