Meaning
Shifted values represent the modification of the standard operating voltage assigned to a battery chemistry based on refined testing or design updates. A nominal voltage change reflects a fundamental adjustment in the expected energy density or discharge profile of a product line. It serves as the primary reference for system integration and inverter settings.
Engineering Revision
Manufacturers issue a new specification when the chemical composition of the cathode or anode is altered to improve performance. This nominal voltage change requires the recalculation of the total energy storage capacity of a pack. Downstream components must be checked for compatibility with the new levels.
Market Integration
Buyers use the rated voltage to determine the number of cells needed to meet a specific power requirement. When a nominal voltage change occurs, it can affect the architecture of the entire thermal and structural enclosure. Standardizing these values ensures that different suppliers can provide interchangeable modules.
Limit Definition
Deviation from the stated value during operation may indicate a fault or extreme degradation. While the nominal voltage change is a static design update, the actual voltage varies during use. Maintaining the battery within the bounds of its updated rating is necessary for warranty compliance and safety.