Texas Instruments introduced the industry's highest-cell-count battery monitor with an integrated electrochemical impedance spectroscopy engine, bringing predictive intelligence, comprehensive data and real-time diagnostics to battery monitoring in electric vehicles and energy storage system applications. The BQ79826Z-Q1 battery monitor enhances safety and extends battery life by detecting potential failures from within battery cells. The single chip delivers the highest-cell-count monitoring in its class, tracking up to 44% more channels than previous generations.
With this increase in channels, the device significantly decreases the number of components required in a battery pack, reducing system complexity and cost without compromising reliability. The BQ79826Z-Q1 supports up to 26 cells per device, eight more than any competing solution, setting a new industry standard. Fewer monitoring devices means a lower bill of materials, simplified architecture and reduced board space requirements, translating to meaningful cost savings per channel without sacrificing quality or reliability.
When paired with the BQ79881-Q1 pack monitor and optional Texas Instruments communications bridge, these devices create a powerful chipset that works across different module sizes, battery chemistries and mechanical designs, giving engineers the flexibility to design once and deploy everywhere. Integrated EIS technology enables the BQ78926Z-Q1 to detect fault conditions earlier ? from inside the cells ?
helping maintain safety and notifying passengers of potential vehicle hazards such as thermal runaway. These same benefits extend to energy storage systems, where reliable battery monitoring is critical to meeting the growing power demands of artificial intelligence data centers. As effective storage solutions become increasingly vital in the grid-to-gate ecosystem, EIS gives engineers real-time visibility into the state of charge and state of health of each battery cell, regardless of system size.
