| 320 / | HD | ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING |
| FOR 101 | DF | BATTERY CHARGING AND/OR DISCHARGING (320/2) {15} |
| FOR 104 | DF | .~ Combined charging and discharging (320/5) {5} |
| FOR 109 | DF | .~.~ Charging source and/or circuit controlled by discharging circuit (320/10) {2} |
| FOR 110 | | .~.~.~ Starting and/or stopping of battery charging (320/11) |