Patent ID: 8761885

Claim:
A method for managing a battery powering an implantable medical device (IMD), comprising: obtaining a first plurality of voltage readings of the battery in the IMD; estimating future battery performance characteristics based upon a linear extrapolation from the first plurality of voltage readings; generating a first baseline curve of a voltage depletion over time for the battery in the IMD under selected operating parameters; generating a first estimate of future battery performance characteristics based upon the linear extrapolation from the first plurality of voltage readings and an initial point of the first baseline curve; modifying one or more operating parameters of the IMD; obtaining a second plurality of voltage readings of the battery in the IMD after modifying one or more operating parameters of the IMD and a delay period; generating a second baseline curve based upon the second plurality of voltage readings; and generating subsequent battery life estimates based upon the linear extrapolation of one or more subsequent voltage readings and the second baseline curve; wherein a length of the delay period reduces one or more errors in the second baseline curve.