What is the difference between a battery and a battery assembly?

The difference between a battery and a battery pack assembly is that the battery can be charged. Save electricity, and the battery is only disposable, and it will be gone after use.

1. battery: the smallest unit that constitutes a battery, generally consisting of a positive electrode, a negative electrode, an electrolyte, etc. , whose nominal voltage is the open circuit voltage.

2. Battery module: several battery cells are welded in parallel to form a battery pack. Several battery packs are connected in series to form a battery unit.