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HomeTechnologyThe 12-Volt Sealed and Flooded Deep Cycle Battery

The 12-Volt Sealed and Flooded Deep Cycle Battery

If you’ve ever shopped for a Flooded Deep Cycle Battery, you know that many choices are available. There are flooded lead acid batteries, AGM deep cycle batteries, gel cell 12-volt batteries and many more options. With so many choices available, it can be challenging to figure out which one is best for your needs. However, when it comes time to purchase your next deep cycle battery, we recommend using the Sealed 12 Volt Deep Cycle Battery. A sealed lead acid battery has all of its electrolytes contained within the casing of the battery itself; there’s no need for regular maintenance like topping off with distilled water or adding electrolyte solution during charging cycles (which makes them ideal).

What is a Sealed Deep Cycle Battery?

A Sealed Deep Cycle Battery can be discharged to 50% of its capacity. It has a longer lifespan and can be used for many applications. In addition, because it’s made with thicker plates than other types of batteries, the capacity will last longer even when stored in a discharged state.

Flooded Deep Cycle BatteryDeep cycle batteries are commonly used to power:

  • Off-grid homes
  • Recreational vehicles (RVs)
  • Electric vehicles (EVs)
  • Electric bicycles Marine applications Solar power systems

How Does a Sealed 12 Volt Deep Cycle Battery Work?

You may have noticed that your deep cycle batteries are labelled as “wet” or “sealed.” This refers to how the battery is constructed. A Sealed 12 Volt Deep Cycle Battery contains its electrolyte, a liquid mixture of sulfuric acid and water. The electrolyte in a wet cell (or flooded) battery is not sealed but instead fills the spaces between the lead plates in the battery’s cells.

A Sealed 12 Volt Deep Cycle Battery discharges more slowly than other batteries and can be used for golf carts, electric vehicles, trolling motors and backup power systems. The amount of energy stored in a deep-cycle battery depends on many factors like capacity (measured in amp hours), voltage, internal resistance and discharge speed (charging rate).

Flooded Lead Acid Deep Cycle Battery

Because these batteries are less expensive, they have dominated the deep cycle battery market. Flooded Lead Acid Deep Cycle Battery is generally used in applications where more extended periods (up to a few weeks or months) with infrequent recharging are required. This includes:

  • Standby power
  • Uninterruptible Power Supply (UPS)
  • Emergency lighting systems

Flooded lead acid batteries are not recommended for uses where frequent cycling is required, such as automotive starting systems, trolling motors and uninterruptible power systems, since they are discharged rapidly and recharged slowly. If you were to discharge your Flooded Lead Acid Deep Cycle Battery regularly, it would significantly shorten its life. They also cannot get charged at high rates because internal pressure builds up inside the cell and can cause damage or even rupture if this pressure is not relieved quickly enough by equalizing – which involves discharging through an external load that draws only a tiny fraction of what would typically able to considered an average current draw.

12-Volt Sealed Deep Cycle Battery

A Sealed Deep Cycle Battery is a type of lead-acid battery designed to be maintenance-free. Because they cannot able to opened and filled with water, they are considered “sealed.” The electrolyte (the chemical in a battery that allows it to produce electricity) is held in the battery by a plastic case and cannot spill or leak out of it, making it maintenance-free.

This type of Sealed Deep Cycle Battery is usually used in applications where the battery is not accessible, such as motorized vehicles that are stored outside and rarely driven. They are also commonly used to power homes during blackouts or other emergencies when there is no access to electricity from the grid.

12 Volt Sealed Deep Cycle Battery

A 12 Volt Sealed Deep Cycle Battery, also known as a valve-regulated lead-acid (VRLA) battery, is a type of rechargeable battery that can get used for a wide range of applications.

Sealed deep cycle batteries are designed to withstand frequent charging and discharging cycles. These batteries do not vent gas during regular operation, so they cannot get overcharged or damaged by water loss through evaporation. Sealed Deep Cycle Battery operates in any position, including upside down if necessary. The electrolyte does not have to check periodically for the level of electrolyte as with flooded batteries because it is contained within the casing. There is no need for maintenance when using these types of batteries!

You can now choose the 12 Volt Sealed Deep Cycle Battery you need.

You can now choose the 12-volt deep cycle battery you need. There are many deep cycle batteries, and you can choose the best one for your needs. You can select a 12 Volt Sealed Deep Cycle Battery or a flooded battery. The most common type of deep cycle battery is the flooded lead acid variety. Still, other options, such as gel cells or AGM (absorbed glass mat), provide different levels of performance and longevity.

When choosing a replacement for an existing 12-volt system, knowing what kind of performance you need from your new deep cycle batteries before heading out to buy them is helpful.


Now that you know the difference between a Sealed Deep Cycle Battery and flooded 12-volt deep cycle battery, it’s time to choose. Which one is right for you? We recommend going with the sealed type if you need a battery that won’t leak or spill its electrolyte. However, if there are times when your vehicle won’t be used for long periods (more than four months), then consider getting an alternative model instead.

Richard Brody
Richard Brody
I'm Richard Brody, a marketer based in the USA with over 20 years of experience in the industry. I specialize in creating innovative marketing strategies that help businesses grow and thrive in a competitive marketplace. My approach is data-driven, and I am constantly exploring new ways to leverage technology and consumer insights to deliver measurable results. I have a track record of success in developing and executing comprehensive marketing campaigns that drive brand awareness, engagement, and conversion. Outside of work, I enjoy spending time with my family and traveling to new places.