Techniques for a smart battery are described. In at least some implementations, a smart battery includes internal components that enable the smart battery to perform various actions, such as communicating with a remote device, tracking power usage, controlling power output, and so forth. In at least some implementations, a smart battery includes in internal charge circuit that enables the smart battery to be recharged via an externally-supplied charging current without damaging internal components of the smart battery. In at least some implementations, a battery application enables operational parameters of a smart battery to be configured by a remote device.