![]() However, while this battery is low-maintenance, it requires periodic effective charging service and regular inspection to prevent wear and tear. Doing so voids the warranty and damages the product. Moreover, it would be best if you did not open the valves in AGM batteries since they rely on a sealed design. These features ensure moisture is retained within the AGM battery during operations. AGM batteries are also constructed with heavy-duty plates, premium self-sealing valves, top lead connections, and absorbent glass mat separators. It doesn’t require any watering service and can be placed on the side or in an upright position. Want to learn more? Contact Lifeline Batteries to speak with one of our experts.An AGM battery is a low-maintenance battery that is sealed and valve-regulated. Boaters who invest in these batteries report tremendous benefits. Make no mistake, AGM batteries are revolutionizing boats. The AGM batteries also provide the following benefits: As a result, the battery is able to withstand vibrations better than other batteries. ![]() The high-density glass fibers offer strong support to the plate. When charging, carefully designed valves allow oxygen generated to move from the anode to the cathode, where it combines with hydrogen produced to form water. The separators are saturated with acid electrolyte in order to trigger the battery. ![]() They have porous microfiber glass separators, which are carefully placed between the anode (positive plate) to the cathode (negative plate). But, they still need to be vented and must be carefully regulated to avoid damage.ĪGM batteries perform better than flooded and gel batteries. They are also leak-proof, spill-proof and submersible. Unlike flooded batteries, gel batteries self-discharge at a lower rate. Finally, flooded batteries cannot withstand intense vibrations and must be fixed in an upright position. Secondly, these batteries self-discharge and therefore require off-season charging. But flooded batteries have several drawbacks.įirst, they need regular inspections and distilled water must be added to the cells when the levels get low. When charging, the batteries generate hydrogen and oxygen which escape into the atmosphere through vented wet cells. These batteries use a sulfuric acid solution to store energy. Generally, there are three options: flooded, gel and AGM batteries. The extra energy is then used in between recharge cycles.Īpart from functionality, battery chemistry also plays a major role when choosing the right battery for your boat. Most boaters, therefore, size their deep cycle batteries to store more energy than expected. However, a high amount of energy is re-deposited back and the cycle starts during recharge. For instance, when used overnight, nearly 70% of the stored charge might get depleted. Unlike starting batteries, deep cycle batteries rejuvenate fully after heavy discharge because their plates are thicker. As a result, their lifespan is relatively short. However, they are relatively fragile and cannot withstand deep discharges. Starting batteries have numerous thin plates to generate the much-needed amperage. These batteries are designed to deliver 75-400 amperes for about 5-15 seconds. Since batteries have two major applications, boaters often have two options: starting batteries and deep cycle batteries. When you’re in the market for a new battery, two factors come to mind: battery application and battery chemistry. Today, many boaters are turning to AGM batteries. For decades, boaters relied heavily on gel and flooded batteries to accomplish these functions. Boat batteries have two major functions: starting the engine and powering electrical components.
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