High-cell-count focus, Texas Instruments BQ79826-Q1 targets safer EV batteries

Edited by ad hoc news Flagship & Bestseller Desk. Reviewed before publication on 06/15/2026 at 6:16 PM ET. Details in the imprint.

Texas Instruments is sharpening its profile in electric vehicles with the BQ79826-Q1, a high-cell-count battery monitor designed for traction batteries and large stationary storage systems. The device is aimed at pack designers that need to manage dozens of series-connected cells while improving safety diagnostics and reducing bill of materials in next-generation EV platforms.

What the BQ79826-Q1 brings to high-voltage EV packs

At the core of the BQ79826-Q1 is support for high cell counts in a single monitoring chain, enabling measurement of a large number of series-connected lithium-ion cells typically used in 400 V and 800 V EV battery architectures. According to the official product documentation, the IC integrates high-precision voltage measurement, cell balancing drivers and safety features tailored to automotive requirements, and it is qualified to AEC-Q100 for automotive applications, which positions it for use by global carmakers and Tier-1 suppliers. Texas Instruments’ official product page details its role in large traction batteries and stationary storage packs.

A key differentiator is the integration of electrochemical impedance spectroscopy (EIS) functionality, allowing the system to measure how cell impedance changes over frequency and time without needing separate dedicated hardware. EIS data can give battery management systems deeper insight into cell health, aging and early fault detection compared with traditional voltage and temperature monitoring, which is especially relevant for long-warranty EV and grid-storage applications where pack longevity is a critical cost driver. Industry coverage notes that combining high-cell-count monitoring with built-in EIS is intended to reduce external analog circuitry, cut board space and lower total system cost compared with multi-chip solutions that rely on discrete impedance measurement blocks. Analysis of the new high-cell-count EV battery monitor highlights this cost and complexity angle for EV and storage designers.

The BQ79826-Q1 is designed to fit into a broader reference design that includes a complementary battery-pack monitor and communications bridge, enabling what Texas Instruments markets as a “design-once, deploy-anywhere” approach across different pack sizes and chemistries. By using essentially the same monitoring architecture from compact plug-in hybrids up to full-size battery-electric vehicles and large stationary storage racks, automakers and system integrators can reuse software, safety cases and diagnostics, which can shorten development cycles and simplify platform scaling. Trade-press commentary emphasizes that this flexibility aligns with the wider industry move toward modular EV platforms and common battery modules, making TI’s battery monitoring portfolio more attractive to OEMs that want to standardize electronics across multiple vehicle lines. Recent market-mover reports also link the launch of this EV battery monitor to a stronger strategic push into automotive and energy infrastructure.

Within Texas Instruments’ portfolio, the BQ79826-Q1 sits in the company’s automotive and industrial power segment, a key growth area alongside its long-established analog and embedded processing franchises. EV battery management systems are a structurally expanding market as global EV production rises and grid-scale storage deployments increase, and TI is positioning this part as a way to capture more content per vehicle by pairing it with its existing power management, isolation and microcontroller offerings. Shares of Texas Instruments (ISIN US8825081040) traded on NASDAQ at around $302 on 06/15/2026 after a series of positive analyst notes that cited, among other drivers, the company’s expanding presence in EV power electronics.

This article was a.i.-assisted and editorially reviewed. Product information without warranty; prices and availability may change at short notice. Not investment advice and not a buy or sell recommendation. Trading involves risk up to and including the total loss of invested capital.