![]() According to BCI, the plastic cases, lead plates, sulfuric acid, solder, and other metals are 100% recovered for reuse. BCI says lead acid batteries are recycled 98% by volume, 99.5% by weight. Audio equipment, similarly to a UPS but also in certain 'clean power' devices to supply clean DC power isolated from the public electric supply for inversion to AC to maximize audio signal reproductionĪccording to the Battery Council International ("BCI") - a lead-acid battery industry trade group - the vast majority of deep cycle batteries on the market today are lead acid batteries. ![]() Uninterruptible power supply ('UPS'), usually for computers and associated equipment, but also sump pumps.Traction batteries to propel vehicles, such as golf carts, and other highway electric vehicles.Power for instruments or equipment at remote sites.Off-grid energy storage systems for solar power or wind power, especially in small installations for a single building or motorhome.Industrial electrically-propelled forklifts and floor sweepers.Trolling motors for recreational fishing boats.Other marine use, especially on a sailboat lacking power generation capability, generally smaller vessels.Cathodic protection, which might include marine use.Applications ĭeep cycle batteries in an electric boat refit. New technologies Īlthough still much more expensive than traditional lead-acid, a wide range of rechargeable battery technologies such as lithium-ion are increasingly attractive for many users. The capacity of a deep cycle battery is usually limited by electrolyte capacity and not by the plate mass, to improve life expectancy. Major modes of failure of deep-cycle batteries are loss of the active material due to shedding of the plates, and corrosion of the internal grid that supports active material. Flooded batteries will decompose some water from the electrolyte during charging, so regular maintenance of flooded batteries requires inspection of electrolyte level and addition of water. The electrolyte level should be above the tops of the plates which serves as a reservoir to make sure that water loss during charging does not lower the level below the plate tops and cause damage. The term "flooded" is used because this type of battery contains a quantity of electrolyte fluid so that the plates are completely submerged. The difference generally affects the cycle life and performance of the cell. ![]() Further, flooded deep-cycle batteries can be divided into subcategories of Tubular-plated Opzs or flat plated. The reinforcement of absorbed glass mat separators helps to reduce damage caused by spilling and jolting vibrations. The thicker battery plates resist corrosion through extended charge and discharge cycles.ĭeep-cycle lead-acid batteries generally fall into two distinct categories flooded (FLA) and valve-regulated lead-acid (VRLA), with the VRLA type further subdivided into two types, Absorbed Glass Mat (AGM) and Gel. Alloys used for the plates in a deep cycle battery may contain more antimony than that of starting batteries. Deep cycle battery plates have thicker active plates, with higher-density active paste material and thicker separators. The structural difference between deep-cycle and cranking lead-acid batteries is in the lead battery plates. Types of lead-acid deep-cycle battery Ī deep-cycle battery hooked up to a charger. The new technologies are also beginning to become common in the same form factor as the automotive lead-acid batteries, although at a large price premium. Newer technologies than the traditional lead-acid (such as lithium-ion batteries) are becoming commonplace in smaller sizes in uses such as smartphones and laptops. The term is traditionally mainly used for lead–acid batteries in the same form factor as automotive batteries and contrasted with starter or 'cranking' automotive batteries designed to deliver only a small part of their capacity in a short, high-current burst for cranking the engine.įor lead-acid deep-cycle batteries there is an inverse correlation between the depth of discharge (DOD) of the battery and the number of charge and discharge cycles it can perform with an average "depth of discharge" of around 50% suggested as the best for storage vs cost. A deep cycle battery powering a traffic signalĪ deep-cycle battery is a battery designed to be regularly deeply discharged using most of its capacity.
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