The difference between the battery cell and the battery pack.
Battery cell is a separate battery, the battery is composed of several batteries in series to form a group.
Finished battery pack with a single (such as our usual cell phone and MP3MP4 battery), there are many sections (such as laptop batteries).
The battery connection (notify the use of spot welding, but also solder the way) on the protection board, and then install the battery box is labeled plastic box finished battery.
Battery cell is the core of the battery components, aluminum liquid lithium batteries and aluminum plastic film polymer batteries.
