PCM vs BMS: What is the Difference?

Lithium-ion batteries are widely used in RVs, marine devices, solar energy storage, AGV robots, portable power stations and consumer electronics.

To ensure battery safety and service life, protection and management systems are essential. Most buyers and engineers often confuse PCM (Protection Circuit Module) and BMS (Battery Management System).

Although they both protect lithium batteries, their functions, application scenarios and intelligence levels are completely different.