| 320 / | HD | ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING |
| FOR 101 | DF | BATTERY CHARGING AND/OR DISCHARGING (320/2) {15} |
| FOR 104 | | .~ Combined charging and discharging (320/5) {5} |
| FOR 105 | DF | .~.~> Plural, diversely treated batteries (320/6) {2} |
| FOR 108 | DF | .~.~> Combined regulation of charging source or circuit and discharging circuit (320/9) |
| FOR 109 | DF | .~.~> Charging source and/or circuit controlled by discharging circuit (320/10) {2} |
| FOR 112 | DF | .~.~> Discharging circuit regulation (320/13) |
| FOR 113 | DF | .~.~> Alternately charging and discharging (320/14) |