A traction battery is often used in applications where a long-lasting, reliable power source is needed, such as electric vehicles, forklifts, golf carts, and electric boats. Here are some reasons why a traction battery may be preferred in such situations:

1. High energy density: Traction batteries are designed to store a large amount of energy and deliver power over extended periods. They have a high energy density, enabling them to provide continuous power for longer periods.

2. Deep discharge: Traction batteries are usually designed to withstand deep discharges, which means they can be almost fully discharged before needing to be recharged. This is important in applications where long-term use and high power are required.

3. Reliability: Traction batteries are often built with robust materials and constructions to withstand harsh environments and frequent use. They need to resist shocks, vibrations, and other stresses that may occur in vehicles and industrial applications.

4. Fast charging: Some traction batteries can be charged quickly, reducing the downtime of vehicles or equipment. This is especially important in situations where fast charging capacity is needed to maximize operational efficiency.

5. Maintenance: Traction batteries can be relatively easy to maintain. They can be regularly checked for water levels, corrosion, connections, and general condition. With proper maintenance, traction batteries can have a longer lifespan.

The use of a traction battery offers advantages such as high energy density, deep discharge, reliability, fast charging, and ease of maintenance, making them suitable for applications where long-lasting and reliable power sources are required.