What is A Deep Cycle Battery?

What Is A Deep Cycle Battery

These are batteries with charging and discharging features. In order to produce electricity, they have chemicals that react and in the end provide the required electrical energy.

From history, deep-cycle batteries provide more electrical energy for a longer period. These make them ideal for camping, wheelchairs, boats and are a perfect option for solar and renewable energy applications.

An overview of a deep cycle battery

Deep-cycle batteries are lead-acid batteries, which serves to provide a non-ending source of electrical power. Their designs allow them to charge and discharge using their in-built capacitors. During the 19th century, there was dire need of high surge currents, which led to the invention of the deep-cycle battery.

The difference between deep-cycle battery and starter batteries is that deep-cycle batteries has the ability to utilize its maximum capacity thereby delivering high amount of electrical energy. In addition to that, deep-cycle battery can also serve to provide a starting up option as it has a low cranking current.

The discharge capacity of deep-cycle battery mostly depends on the manufacturer. Averagely, the battery discharges a range varying from 45 to 75%. However, the levels can go to as low as 20%. This is not however recommended as continuous usage in this state may lead to lowering the effectiveness of the battery in the end.

The depth of discharge and the amount of cycles that the battery can undertake do not correlate directly. In that case, when the deep-cycle battery discharges 50 to 70 percent if its capacity then it requires a recharge. Generally, for equipment that requires stable and constant supply of electricity, deep cycle batteries provide the perfect option.

Battery construction

To start with, there are two groups of deep-cycle batteries namely; flooded and value regulated lead-acid. The flooded batteries are categorized further into tubular plated and flat-plated.

The stamen is true for VRLA too as they are categorized into Absorbed Glass Mat and Gel. To add to their construction, the batteries have electrodes made of thick plates and have lead antimony alloy. After insertion of the electrodes to the battery casing, they are shaped into plates.

A permeable divider separates the electrodes and electrolytes fills the cells. Normally the six electrodes have the ability to produce two volts thereby forming up the 12-Volt battery configuration.

Electrode plates are very important, as they are the ones that determine the quantity of the reserve energy that can be stored in a battery. The plates are also responsible for the duration that the battery will be able to serve you. This is because as the battery works, the electrodes wear out meaning they can no longer conduct current effectively. They get thinner with the passage of time and use thereby giving up their capacity.

Battery applications

In the recent past, there has been growing demands of people seeking sources of renewable energy and developers are working hard to provide them. Because of this, the researchers and developers continue to invent new methods and the technology of deep-cycle battery expands in the process.

In addition to that, industries now provide better and sustainable battery capacity options. People use deep-cycle batteries in golf carts, boats, forklifts and other recreational vehicles.

Why should I choose deep-cycle batteries?

One thing that deep-cycle batteries provide you with over traditional batteries is their ability to provide long and sustainable electrical power. With only one charge, deep-cycle batteries will provide you with longer running hours compared to the other types of batteries. Moreover, they have a slower discharge rate and have a longer shelf life as compared to the others.


Like any other similar product, deep-cycle batteries require regular maintenance except for the VRLA batteries. Maintenance is important as it helps the battery last longer, work properly and improve its consistency. One way of maintaining the batteries is not allowing them to discharge to a level below 80% as that will cause weakening of the plates thereby reducing its battery life.

Deep-Cycle Battery Technology

For a battery to complete a battery cycle, it has to fully discharge and recharge. Normally, the battery has to discharge to up to 20% then recharged to 100% to achieve this. While the depth of discharge varies, it is advisable that you discharge the battery to 50% regularly. This will ensure that it stays in a good condition and work effectively.

Originally posted 2017-07-05 07:45:37.