Bq40370 [verified] Jun 2026

The BQ40370 functions as a and protection IC, managing the charge and discharge cycles of multi-cell lithium-ion packs.

The is a specialized battery management chip developed by Texas Instruments (TI) , primarily found in Dell laptop batteries (such as the WDX0R, 3DDDG, and F3YGT models). Unlike standard retail chips, it is a custom product, meaning full public datasheets and documentation are generally unavailable from TI. Key Technical Specs & Features bq40370

Based on the features and specifications of the BQ40370, we recommend the following: The BQ40370 functions as a and protection IC,

Would you like a sample CEDV configuration spreadsheet or an example I²C register read/write sequence in C? it is a custom product

As a "custom" or proprietary product, the bq40370 is notoriously difficult for third-party technicians to service.