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What Are the Different Kinds of Deep Cycle Batteries?

Views: 200     Author: Ubest     Publish Time: 2023-08-08      Origin: Site

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What Are the Different Kinds of Deep Cycle Batteries?

Both lithium and lead acid battery technologies use the deep cycle feature. The lead acid battery is classified into two types: flooded cells and sealed lead acid batteries. AGM and gel cell batteries are two types of sealed lead acid batteries. Each deep-cycle battery type has advantages and cons, and you must determine which is ideal for you. Let us now examine each of these battery kinds separately:


1. Lead Acid Flooded

The normal flooded lead acid battery is the most common form of automobile battery. Lead plates in the flooded battery are immersed in an electrolyte solution of sulfuric acid and water. Gases are released from the battery while charging and discharging as a result of the chemical reaction. As a result, the electrolyte level drops and must be replenished regularly.


A flooded lead acid battery's useful capacity ranges from 30 to 50%. Usable capacity, which in this case is up to 50% of total capacity, refers to how much of a battery may be used before it needs to be recharged. A flooded battery is charged incrementally, so there is potential for undercharging or overcharging. The flooded battery's charging efficiency ranges from 70 to 85% on average.


While the flooded battery is the most cost-effective, dependable, and resistant to overcharging, it requires the greatest ventilation, must always be upright (to avoid electrolyte leakage), and requires the most maintenance. It also has a shorter lifespan than other species.


2. AGM (Absorbent Glass Mat)

AGM batteries are a kind of valve-regulated lead acid (VRLA) batteries. Absorbent Glass Mat (AGM) refers to the thin fiberglass mats that are placed between the lead plates. The glass mat absorbs electrolyte and works as a damper between the lead plates by preventing it from shifting and leaking.


The glass mat's dampening action makes the battery shock and vibration resistant, as well as cold-temperature-resistant. AGM deep cycle batteries have low internal resistance and charge faster than flooded or gel batteries. It has a charge efficiency of 95% and a depth of discharge (DoD) of 80%.


Maintenance-free, position-insensitive, robust, and fast charging are just a few of the benefits of an AGM battery. It is, however, more expensive than a flooded cell battery and is sensitive to overcharging, necessitating the use of a regulated charger.


3. The Gel Cell

The gel cell battery, like the AGM battery, is a type of VRLA battery. The gel battery employs a gelled electrolyte, which is commonly composed of sulfuric acid and water suspended in a silica agent. The gel battery offers an approximate charge efficiency of 85-90%, great heat tolerance, and negligible off-gassing.

This battery, however, cannot withstand rapid charging. In addition, the gelled electrolyte is extremely sensitive to overcharging and can be severely damaged if this occurs. The gel cell battery requires no maintenance, is spill-proof, and has a high heat tolerance. However, it is more expensive than flooded or AGM batteries and requires a specific charger and regulator.


4. Ion Lithium

In comparison to lead-acid battery variations, the lithium battery is a relative newcomer. Lithium-ion batteries have a usable capacity of 80–100% and are 30% lighter than flooded cell batteries. They also have the fastest recharge rate and the longest cycle life—typically between 2000 and 5000 charge cycles.


The lithium-ion battery also provides constant voltage regardless of discharge rate. This means that your lithium-ion-powered lights will not gradually dim as the battery loses charge. When there is no more power, the lights will simply go out. Lithium Iron Phosphate (LiFePO4) batteries are the most recent type of lithium battery. Deep-cycle applications, such as solar energy banks and backup power systems, frequently use LiFePO4 batteries. Related product: 12V 100Ah Lithium Ion Deep Cycle Battery.


The lithium deep cycle battery is light, compact, and maintenance-free, with a high usable capacity, fast recharge rate, and constant voltage. It is, however, much more expensive than lead acid batteries and requires a battery management system (BMS).

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