Difference between traction and starter batteries.

Batteries are in demand in various fields. They are also used to ensure the operation of cars and special equipment. Let's consider what the purpose of such devices is, and find out how the traction battery differs from the starter one.

Function of devices

Accumulators act as energy storage devices. They have electrode plates that are charged when interacting with special compounds. These parts are cathodes and anodes.

Energy is further used for its intended purpose. For example, it may be necessary when starting a motor, providing lighting, or used to maintain the operation of certain mechanisms and systems. Important parameters of the discussed devices are voltage, capacity, permissible degree of discharge, starting current power, and others.


The division of devices into two categories occurs in accordance with their specific purpose. The difference between the traction battery and the starter battery lies in the fact that it is the models of the first type that are created for those cases when it is required to energize any equipment for a long time and stably. Traction batteries are used, for example, in warehouse trucks, transport trolleys and cleaning equipment, and are used in boats and wheelchairs.

But for a normal car, a starter battery is suitable. With an impressive starting current, it helps drive the motor. At this moment, the battery gives off a lot of energy, and then, while the car is moving, it is replenished from the generator.

If you focus on the details of the devices, you will notice that the plates of the traction models are quite massive. In this design, they wear out less. And in order for the body to withstand the load from these elements, it also has thick walls. Starter plates are thin, closely spaced. This design provides sufficient current to start the motor. It should be noted that starter batteries are always "hiding" under the hood, being a source of harmful fumes. At the same time, the traction devices are characterized by low gas emission.

What is the difference between a traction battery and a starter battery in terms of their susceptibility to deep discharges? The fact that the samples of the first variety are not afraid of such conditions. In turn, the starter battery exhibits a noticeable sensitivity in this regard. If this unit is thoroughly discharged several times, it will lose a tangible share of its qualities, or even completely fail. You need to monitor it carefully.


Traction batteries Starter devices
Sources of constant energyThe main purpose is to start the engine
Power the mechanisms of special equipmentInstalled in cars
Massive structural partsThin shifted plates
Slight gassingHarmful fumes
Not sensitive to strong dischargesFull discharge is contraindicated for them