Marine batteries are designed as a compromise between starter (high-current) and deep cycle. They are able to be discharged to a greater degree than automotive batteries but less so than deep-cycle batteries. They may be referred to as “marine/motorhome” batteries.
Traction Battery
Traction or deep cycle batteries are designed to produce a constant and small discharge for long periods of time. They are much less susceptible to degradation due to cycling and are required for applications where the batteries are regularly discharged, such as photovoltaic systems and electric vehicles. Deep-cycle batteries should be able to maintain a cycle life of several thousand cycles under high DOD (80% or more). The traction battery has thick lead plates to achieve a specific capacity and a reasonably high number of cycles. They can deliver less peak current but can withstand frequent discharging. Some batteries are designed as a compromise between a starter (high-current) and a deep cycle. They are able to be discharged to a greater degree than automotive batteries but less so than deep-cycle batteries. They may be referred to as “marine/motorhome” batteries. Traction batteries are mainly used in heavy industrial electrical applications such as electric forklift trucks, electric tractors, large industrial cleaning machines, and aerial platforms. Deep-cycle lead-acid batteries generally fall into two distinct categories; flooded (FLA) and valve-regulated lead-acid (VRLA), with the VRLA type further subdivided into two types, Absorbed Glass Mat (AGM) and Gel.
