device/drawable-anydpi-v21/ic_battery_20_black_24dp.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:fillColor="#FF000000"
        android:pathData="M7,17v3.67C7,21.4 7.6,22 8.33,22h7.33c0.74,0 1.34,-0.6 1.34,-1.33V17H7z"/>
    <path
        android:fillColor="#FF000000"
        android:pathData="M17,5.33C17,4.6 16.4,4 15.67,4H14V2h-4v2H8.33C7.6,4 7,4.6 7,5.33V17h10V5.33z"
        android:fillAlpha=".3"/>
</vector>