{ "cells": [ { "cell_type": "markdown", "id": "0ff828b7", "metadata": {}, "source": [ "# ★★★ Three-Star Battery Data\n", "\n", "This notebook demonstrates how to convert structured battery test data into a set of **open, machine-readable formats** that follow best practices for accessibility and interoperability. This corresponds to **three stars** in the Five-Star Battery Data framework.\n", "\n", "---\n", "\n", "## What does three-star mean?\n", "\n", "In the 5-Star Battery Data framework, 3-star data is:\n", "- Provided in an **open, non-proprietary file format** (e.g., `.csv`, `.json`, `.parquet`, `.hdf5`, `.txt`)\n", "- **Machine-readable**, meaning it can be automatically parsed and processed by standard software tools\n", "- **Not locked behind proprietary formats** (e.g., `.xlsx`, `.bin`, `.nda`) that require vendor-specific software\n", "\n", "Using open formats is a critical step toward making data reusable, durable, and easy to work with across tools and platforms.\n", "\n", "---\n", "\n", "## Watch\n", "\n", "
| \n", " | Test Time / s | \n", "Current / A | \n", "Voltage / V | \n", "Unix Time / s | \n", "Step Count / 1 | \n", "Temperature 1 / °C | \n", "Temperature 2 / °C | \n", "Temperature 3 / °C | \n", "
|---|---|---|---|---|---|---|---|---|
| 0 | \n", "0.00 | \n", "0.0 | \n", "3.8022 | \n", "1.729688e+09 | \n", "1 | \n", "26.2 | \n", "26.2 | \n", "26.4 | \n", "
| 1 | \n", "0.01 | \n", "0.0 | \n", "3.8022 | \n", "1.729688e+09 | \n", "1 | \n", "26.2 | \n", "26.2 | \n", "26.4 | \n", "
| 2 | \n", "10.00 | \n", "0.0 | \n", "3.8022 | \n", "1.729688e+09 | \n", "1 | \n", "26.2 | \n", "26.2 | \n", "26.4 | \n", "
| 3 | \n", "20.00 | \n", "0.0 | \n", "3.8022 | \n", "1.729688e+09 | \n", "1 | \n", "26.2 | \n", "26.2 | \n", "26.4 | \n", "
| 4 | \n", "30.00 | \n", "0.0 | \n", "3.8022 | \n", "1.729688e+09 | \n", "1 | \n", "26.0 | \n", "26.2 | \n", "26.4 | \n", "