Smart Battery
（重定向自Smart Battery Data）
A smart battery or a smart battery pack is a rechargeable battery pack with a built-in battery management system (BMS), usually designed for use in a portable computer.
Besides the usual plus and minus terminals, it also has two or more terminals to connect to the BMS; typically minus is also used as BMS "ground". BMS interface examples are: SMBus, PMBus, EIA-232, EIA-485, MIPI BIF and Local Interconnect Network.