Popular misconceptions exist and are unlikely to go away. This is because many of the misconceptions have been around for years and the versions get better with time. One of the common misconceptions is the suitability of batteries for uses other than its original purpose. For instance, many individuals are of the firm opinion that a car battery can be used in place of a marine battery. Similarly, many hold the opinion that it is possible to use a marine battery as an automotive battery. While the first scenario can be safely ruled out, there is some truth in the second statement. Let’s dive into it and understand more about it.
What Is A Marine Battery
To put it succinctly, marine batteries are dual batteries that are used for cranking and for powering the appliances in a boat. The cranking is achieved when the battery gives out high power that is required for the boat to start. The second purpose is the supply of steady power to the electrical appliances in the boat after the cranking power requirement is over. A marine battery is a robust model, designed to take the rough of the choppy waters, with thick plates and a design that permits it to be discharged by as much as 85% after which it can still charge fully.
What Is A Car Battery
A car battery has a different purpose. It is only meant to give the initial power required for the car to start up. Once the car cranks up, the electrical systems in the car are powered by the engine. In rare instances, when the car is parked, power is drawn from the battery for operating the lights, charger or infotainment systems. However, the battery gets charged when the engine is running and this works perfectly well due to relatively lesser requirement for power from the car battery.
Difference Between Marine Battery And A Car Battery
The difference between the car battery and the marine battery is the power output – the car battery is only intended for cranking the engine, while the marine battery is used for cranking as well as powering electrical systems in the boat. The build quality is different, the marine battery is robust, and comprises heavy plates which are required for the deep cycle of power. The car battery is intended only for powering the car, and is generally not used for running electrical appliances inside the car.
In addition to the build quality, marine batteries can be charged fully even after discharge upto 85%. In the case of car batteries this is generally not possible. The average life of a marine battery is more than the average life of a car battery. This is because of the strong plates and the special bonding process of the batteries. The batteries are expensive when compared with car batteries but last longer. Car batteries do not last as long as marine batteries, and are not suitable for harsh conditions. Additionally, the plates are thin and are designed to meet a specific purpose. The size of car battery needs to differ due to the thicker plates in use. The orientation of terminals is also not exactly the same, and individuals need to match the terminals carefully when charging.
Can You Use A Marine Battery In A Car?
A blunt answer to the question is yes. But the answer is accompanied by another question – why? What exactly is the benefit of using the marine battery in a car? With the possible exception of use in an emergency, it is not the best idea. Though it is technically possible to use a marine battery on a car, it is not actually the best choice. Manufacturer recommendations have a purpose and systems are mated to batteries with specific voltages. It is therefore not advisable to use a marine battery on a car as a matter of routine, but only during emergencies. In the case of a car battery being used in place of a marine battery on a boat, the idea is bound to fail for two reasons. First, the car battery will be unable to meet the power requirements of the boat and secondly, deep cycle battery in car car battery is not designed to play the role of a boat battery to meet the power requirements of the it.
While a marine battery can be technically used in place of a car battery, the same cannot be said if the requirements are reversed. It would be a good idea to stick to manufacturer recommendations and compatible batteries rather than using batteries designed for different purposes.