| 320 / | HD | ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING |
| 137 | DF | BATTERY OR CELL CHARGING {11} |
| 155 | | .~ Time control {2} |
| 156 | DF | .~.~> Detection of current or voltage differential (e.g., slope, etc.) |
| 157 | DF | .~.~> Detection of current or voltage amplitude {1} |