super-embed:
<form>
      <label for="cell-voltage">Cell Voltage:</label>
      <input type="number" id="cell-voltage" name="cell-voltage" oninput="calculateBattery()" value="3.7" step=".1" />
      <button type="button" onclick="clearCellVoltage()">Clear</button><br><br>
      <label for="cell-count">Cell Count:</label>
      <input type="number" id="cell-count" name="cell-count" oninput="calculateBattery()" />
      <button type="button" onclick="clearCellCount()">Clear</button><br><br>
      <label for="mah">mAh:</label>
      <input type="number" id="mah" name="mah" oninput="calculateBattery()" />
      <button type="button" onclick="clearMah()">Clear</button><br><br>
    </form>
    <br>
    <p id="result"></p>