Bq40370 May 2026

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

The bq40370 enters "Sealed Mode" to prevent tampering. In this state, you can read voltage and current, but you cannot write registers or reset the gauge. To unseal it, you need the 32-bit key (specific to the OEM). For TI evaluation modules, the key is 0x04147272, but commercial packs change this via the Data Flash. Without the key, you cannot reset Cycle Count or Capacity. bq40370

Note: Values below are illustrative; always consult the exact bq40370 device datasheet for guaranteed numbers and conditions. Would you like a sample CEDV configuration spreadsheet