Battery Performance Modeling
The function of a battery is to supply electrical energy at a rate sufficient to power the device it drives. Since power is the product of current and terminal voltage, the ideal battery performance model will project these quantities mathematically over the entire range of conditions likely to be encountered in the lifetime of the battery. The first use of a model then is to project how long a new battery will last under a known set of application conditions. If the model is very complete, it serves a second purpose: to project the amount of useful life left in a battery after it has been partially discharged. For an implanted medical device, this information could be a key element in planning for surgical replacement procedures.
KeywordsCurrent Drain Terminal Voltage Battery Capacity Load Impedance Battery Voltage
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