A deep cycle battery is a battery designed to use most of its capacity for periodic deep discharge. The term is traditionally mainly used for lead-acid batteries that have the same appearance as automotive batteries; This type of battery is designed to provide only a small amount of capacity to start the engine during short bursts of high current compared to the starter or "start" car batteries.
For lead-acid deep cycle batteries, there is an inverse relationship between the depth of discharge (DOD) of the battery and the number of charging and discharging cycles it can perform; The average "discharge depth" is about 50%, which is recommended as the best choice for storage and cost.
Technologies newer than traditional lead-acid batteries, such as lithium-ion batteries, have become commonplace in small-scale applications such as smartphones and laptops. New technologies are also beginning to become common in the same form as automotive lead-acid batteries, despite a significant price premium.
Types of lead acid deep cycle batteries
The structural difference between deep cycle and starting lead-acid batteries lies in the lead battery plates. The deep cycle battery electrode plate has a thicker active electrode plate, a higher density active slurry, and a thicker membrane. Alloys used for deep-cycle battery plates may contain more antimony than starting batteries. Thicker battery plates can resist corrosion by extending the charging and discharging cycles.
Deep cycle lead acid batteries are generally divided into two different categories; Submerged (FLA) and valve-regulated lead acid (VRLA), of which VRLA is further divided into two types: absorption glass mat (AGM) and gel. The enhanced absorption of glass mat partitions helps to reduce damage caused by spillage and vibration. In addition, rich liquid deep cycle batteries can be divided into subcategories of tube plating Opz or plate plating. This difference usually affects the cycle life and performance of the battery.
Application of Deep Cycle Battery
Deep cycle batteries in the retrofit of electric boats.
Cathodic protection, possibly including marine applications
Other marine uses, especially on sailboats lacking power generation capacity, are typically smaller vessels
Towing motor for recreational fishing boats
Industrial Electric Forklifts and Sweepers
Electric wheelchair
Off-grid energy storage systems for solar or wind energy, especially in small installations in individual buildings or motor homes
Power supply for remote site instruments or equipment
Recreational vehicle
Traction batteries used to drive vehicles, such as golf carts and other motorway electric vehicles
traffic signal
Uninterruptible power supply (UPS), commonly used for computers and related equipment, including sewage pumps
Audio devices, similar to UPS, also provide a clean DC power source isolated from the common power source in some "clean power" devices, which is used to invert to AC power to reproduce audio signals to a limit of xxx