Abstract: A hot-swappable battery system for computer peripherals includes a wireless mouse having a battery compartment, a battery connector assembly mounted within the battery compartment, a removable battery configured to be inserted into and ejected from the battery connector assembly, a keep-alive battery mounted within the wireless mouse, and a docking station. The battery connector assembly includes electrical contacts and a push-push ejector mechanism. The keep-alive battery is electrically connected to provide backup power when the removable battery is removed. The docking station has a battery slot configured to receive and charge the removable battery when not in use in the wireless mouse. The system enables continuous operation of the wireless mouse while battery swapping between the mouse and docking station.