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Single-cell fuel gauge

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A remaining-capacity number that does not lie after the first week. Impedance-track or a ModelGauge part, not a voltage divider and hope.

Starting part numbers

From the local map. These are examples, not the live result list.

  • BQ27441DRZR-G1A

    Texas Instruments

    Impedance Track, common on pack boards.

  • MAX17048G+T10

    Analog Devices

    ModelGauge, I2C, tiny.

Category map

Nexar / Octopart

Battery Management

id: (blank) · best-effort

DigiKey

Battery Management

id: (blank) · best-effort

Category ids are blank until someone verifies them. Live lookup searches the example MPNs and these labels instead.

Keywords fuelgaugeMAX17048BQ27441stateofcharge

Live parts

On-demand from Nexar and/or DigiKey. Nothing here is a catalog Byuse owns. Specs appear only if the API returned them.

No distributor key is set. Browsing still works. To see live parts, add one of these pairs to .env.local and restart the dev server:

  • NEXAR_CLIENT_ID
  • NEXAR_CLIENT_SECRET
  • DIGIKEY_CLIENT_ID
  • DIGIKEY_CLIENT_SECRET

Nexar needs NEXAR_CLIENT_ID and NEXAR_CLIENT_SECRET. DigiKey needs DIGIKEY_CLIENT_ID and DIGIKEY_CLIENT_SECRET.