In the case of powering devices and vehicles that require constant and steady energy, knowing what makes up a deep cycle battery is very important. Deep cycle batteries are different from normal batteries that are made to deliver high amounts of power for a short time only. Here’s what sets a true deep cycle battery apart:
1. Design and Construction
Real deep cycle batteries are constructed with thicker plates and denser active materials than starter batteries. This design enables them to take deep cycles without much harm, making them suitable for applications where the battery is deeply and regularly cycled. The thicker plates also decrease the chances of plate warping and shedding, which is common in batteries that are not meant for deep cycling.
2. Performance in Deep Discharge Circumstances
One important feature of the true deep cycle battery is its ability to be deep cycled, meaning it can be discharged to a very low level and then recharged without reducing its capacity and lifetime. Although most batteries can be cycled deeply, not all are designed to do so without incurring some level of degradation. Deep cycle batteries can be discharged to as low as 50% or less of their total capacity, which is a standard test of the battery’s cyclic capability.
3. Longevity and Cycle Life
True deep cycle batteries are designed to have high cycle capability, meaning they can withstand hundreds or even thousands of charge-discharge cycles before their capacity drops dramatically. This makes them ideal for renewable energy systems, marine uses, RVs, and any other application where constant power demand and frequent charge-discharge cycles are needed.
4. Applications and Use Cases
These batteries are used in situations where a constant and consistent supply of power is required for an extended period. Some of the most familiar uses are in solar power systems, where batteries are charged by solar energy during the day and then used at night, and in marine environments, where batteries power boat electronics and trolling motors. In such cases, the ability of a battery to deeply discharge and then recharge is very important.
5. Comparison to Other Battery Types
It’s important to note that not all batteries advertised as deep cycle are true deep cycle batteries. For example, most dual-purpose batteries are advertised as deep cycle batteries, but they do not have the same long life and high cycle rating as true deep cycle batteries. Such batteries are generally of mixed types for starting and deep cycle applications but are not efficient for applications that require frequent deep cycling.
Conclusion
A true deep cycle battery is one that is used in applications where there is a constant and continuous draw of power, and the battery is expected to be deep cycled repeatedly without shortening its lifespan. If you are using solar power for your home, RV, or boat, knowing and opting for a true deep cycle battery can significantly impact your power source. When you choose the correct battery for your equipment, you can ensure that your equipment will perform correctly and without issues, even in harsh conditions.
