The main difference between deep cycle and car battery is the amount of time they can hold a charge.
Car batteries are not designed to be discharged regularly, whereas deep cycle batteries are built for repeated use.
A car battery supplies energy to the engine in order to start it up. Because these batteries rarely get used, they are designed to hold a charge for weeks at a time. This is done through a combination of materials, most commonly lead-based. These batteries are designed to withstand lots of charging and discharging, but they do not supply much energy for starting a car. They produce high power and or voltage for a short time. They produce this power or voltage without causing damage to the cell. The life is less and water loss is expected.
Car batteries also have a relatively short lifespan—anywhere from one to three years.A deep cycle battery supplies more power than its car counterpart; it can deliver more amps for longer periods of time. Deep cycle batteries are designed to be discharged frequently and then recharged. Deep cycle batteries use lead-calcium or nickel-cadmium materials, both of which are more durable than the lead in conventional car batteries. They also have thicker lead plates that can withstand repeated discharging. They work for long period. Applications include cranking vehicle's engine, recreational vehicles, golf carts, places where battery needs to be deeply discharged, and marine applications. If a deep cycle battery is discharged severely (below 30%) then the number of cycles capacity reduce to half. Lead acid batteries are deep cycle batteries. They have increased discharge cycles and more cold cranking amps. High cold cranking amps rating (cca rating) is important in cold areas (below zero degrees). It's recommended to use a lead acid battery over regular car battery or automotive battery. They're also used in solar panels. The solar panels forward all the power to these batteries.
Sometimes car owners will buy two deep cycle batteries (lead acid battery) so that they can throw one on the charger when the other is being used in their vehicle. These types of batteries do have downsides: they weigh more than standard car batteries and take up more space. In addition, you cannot jump start your car with a deep cycle battery like you can with a traditional vehicle battery. Before using deep cycle batteries as a replacement for your regular vehicle battery, make sure that your starter system is compatible with this type of product.
Electric cars use lithium-ion batteries, a type of rechargeable battery that is lighter than conventional car batteries. This lightweight battery is the right battery that allows the car to have better acceleration and a longer range on one charge. Because electric cars have to hold so much power, lithium-ion batteries are very expensive. Lithium-ion batteries do not need as much maintenance as standard vehicle batteries and can withstand more charging cycles without any performance decline. Lithium-ion batteries also contain fewer toxic chemicals, which makes them safer for the environment than lead-acid car batteries.
Car batteries typically last between one and three years. The longevity of a battery is dependent on the number of cycles that are placed on it. A cycle occurs when you discharge 100% of the battery's power, usually done by running your car until it dies. If you have a charging system in your car, then you should be able to go for longer periods without discharging your vehicle completely. As your battery gets older, it will start to hold a lower charge and require more time to recharge.
Deep cycle batteries do not suffer from the memory effect. If your battery isn't holding a charge very long, then you may have a charging system problem and need to replace or repair it. A good multimeter can test whether your battery is damaged and won't hold a charge. Also, if you are connecting your deep cycle battery to multiple electrical loads simultaneously, this could lead to the reduction of your battery's capacity. When this happens, be sure to disconnect all other devices before attempting to recharge the battery in order for it to perform at its best capabilities.
It's important to know the right battery that can be used as starting batteries in place of a car's battery. Different battery types use lead dioxide, sulfuric acid (sulphuric acid), lead sulfate, etc. A correct choice for the starting batteries can help in saving money that you won't regret your entire life. You just need something to crank the engine and or sharp burst. The rest of the electricity will be charged by the vehicle's alternator. The memory effect occurs when a battery remembers the point at which it was last discharged and will not allow itself to discharge below that level. This is most common in nickel-cadmium batteries. To prevent your battery from experiencing the memory effect, you should try to discharge it completely before recharging it. If you have a car battery that is draining too quickly, then you might experience the "memory" phenomenon if you do not take steps to reverse it. Gel batteries can be used as starter batteries and for deep cycle application. More efficient options include the AGM battery, which has a high reserve capacity and will work properly for long periods. They have glass mat sealed inside the battery. Flooded batteries demand checking their electrolyte fluid before disposing because that's its active material. The active material can cause severe damage later. Deep cycles work for extended period and have long periods of life expectancy. The total capacity can vary. They have thicker plates (more surface area) and perform well on repeated charge. The lost power is recharged by the alternator. The alternator takes over once the engine starts and return the power back to the battery.