You could have different tiers of conduits that have different tolerance levels and the more power going through them the higher chance a section has to blow out and have to be reconnected by a person. Tier one could be 1 battery: 5%, 2 battery 15%, 3 battery 30%, 4 battery 50%, 5 battery 75% and 6 battery 100%, tier two could be 1 bat. 5%, 2 bat. 10%, 3 bat. 20%, 4 bat 30%, 5 bat. 45% 6 bat. 60%, 7 bat. 75% and 8 bat. 100%