A cell is the smallest, packaged form of a battery. A battery module consists of several cells that are assembled in a series or in parallel. A multi-module battery (battery pack) is created by connecting several modules together. Single-module batteries are typical for applications with voltage ranges not exceeding the 150 V, such as battery-powered tools, vacuum cleaners, multicopter, robots, e-scooters, e-bikes, low voltage telecom, and server UPS. In the case of multi-module batteries, the Battery Management System (BMS) monitors and controls all processes impacting the battery.
Battery protection: recommended voltage classes and products for battery protection
Battery protection enhances the useful operating life of lithium-ion batteries by protecting the battery pack against charge current, discharge current, and pack short fault conditions. Learn more about battery protection.