Difference Between Starter Battery and Power Battery

1, the battery uses different

A starting battery is an electrical storage device used to start an engine and provide instantaneous current to a vehicle. It is usually installed in the engine compartment of a vehicle and is used to provide enough current to start the engine and supply power to the vehicle's electrical system.

Batteries that provide driving power for electric vehicles, electric forklifts, golf carts, robots, and other areas are known as power cells. Usually used for long time deep discharge to drive the vehicle.

2, the battery type is different

Starter batteries are usually wet lead-acid batteries and sealed lead-acid batteries, which are the traditional types of starter batteries that contain liquid electrolyte. The batteries are sealed and do not require maintenance. They are used in many modern cars, motorcycles and light trucks.

AGM (Absorbent Glass Mat) and Gel batteries are two common types of sealed lead acid batteries.

Power batteries are usually made from a number of different types of lithium batteries:

1. Lithium Iron Phosphate (LiFePO4): Lithium Iron Phosphate (LiFePO4) batteries are favored for their high degree of safety and stability. They have a long cycle life, high temperature tolerance and low self-discharge rate, and are suitable for applications such as golf carts, electric forklifts, electric cars, electric motorcycles, electric bicycles and robots.
2. Lithium-Nickel-Manganese-Cobalt-Oxygen (NMC): Lithium-Nickel-Manganese-Cobalt-Oxygen (Li-Ni-Mn-Co-Ox) batteries are a common type of lithium-ion batteries with high energy density, which are widely used in applications such as electric vehicles and power tools. They offer good overall performance, including range and charging speed.
3. Lithium Iron Manganese Phosphate (Li2MnO4LiFePO4): This combination battery combines the features of lithium iron phosphate and lithium nickel manganese cobalt-oxygen batteries with good cycle life and energy density, and is suitable for electric vehicles and energy storage systems.

3, discharge time is different

The power battery can discharge for several hours with small current, and the depth of discharge is very deep; the discharge time of the starter battery is very short.

4, Different discharge power

Starting battery discharge power

Starter batteries have a very high instantaneous discharge power, usually measured in terms of cold peak starting current. This means they can deliver a large amount of current in a very short period of time to start an engine. Cold peak starting currents typically range from a few hundred amps to several thousand amps, depending on the type of vehicle and engine size.

Because starter batteries are designed for use in providing instantaneous current to start an engine, they are not suitable for long periods of deep discharge. Their performance may be impaired in deep discharge situations.

Power battery discharge power

Power batteries have a high continuous discharge power and are suitable for long periods of continuous power supply. The discharge power of these batteries is usually measured by dividing their capacity (kWh) by the usage time (hours).

Power batteries are designed to provide continuous power and are suitable for use in electric vehicles, electric forklifts, and other equipment that requires long periods of operation. They are typically designed with thicker plate separations to provide continuous power.

Unlike starter batteries, power batteries have a high deep discharge capability and can be subjected to multiple deep discharge cycles without significant performance degradation.

Summary

In summary, starter batteries are designed to provide high peak currents to instantly start an engine, but are not suitable for deep discharging. Power batteries are an important part of providing energy in electric vehicles. It is specifically designed to provide long periods of deep discharge to meet the power needs of electric machines and electric vehicles. As a result, the two have different design and performance characteristics, and it is important to select the appropriate type of battery for your specific application needs.