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 105 | DF | .~.~ Plural, diversely treated batteries (320/6) {2} |
FOR 106 | .~.~.~ Series-parallel connections thereof (320/7) |