Battery Cells vs. Modules vs. Packs: How to Tell
Learn the differences between battery cells, modules, and packs. See how each layer works, why BMS and thermal systems matter, and where
Battery Module: A group of interconnected battery cells that increases voltage and capacity compared to individual cells. It includes wiring and connectors and may feature a basic battery management system (BMS) for monitoring. Battery Pack: A complete energy storage system containing one or more modules.
Functionality: The BMS in a module ensures proper charging and discharging of cells, balancing the cells to prevent overcharging and overdischarging. Design: Battery modules often include thermal management systems to prevent overheating during charging or discharging.
A battery cell is a battery's basic unit, whereas a battery module is a collection of battery cells. A pack, on the other hand, consists of one or more modules as well as any other components required for operation, such as enclosure, connectors, and control circuitry. The following comparison chart demonstrates this in greater detail:
Battery cells are the basic electrochemical units. Modules are made up of multiple cells that work together to improve capacity and voltage. Packs are full assemblies that include modules, BMS, and other parts that are needed for a certain job.
PDF includes complete article with source references for printing and offline reading.
Download detailed specifications for our photovoltaic containers, BESS systems, and mobile energy storage solutions.
Industrial Zone 15, ul. Fabryczna 24
Pabianice 95-200, Poland
+48 42 212 00 00
Monday - Friday: 8:00 AM - 5:00 PM CET