This Panasonic CF-SVCBATSW4Y 4 year smart battery warranty with smart service monitoring software for Windows provides peace of mind for customers who own a Panasonic Lumix DMC-GH4 camera. The warranty covers defects in the battery's electrical and mechanical components. In the event that the battery fails due to a defect, Panasonic will provide a replacement battery free of charge. The smart service monitoring software allows you to keep track of the battery's health and performance, and to receive alerts if there are any issues.