Thor Forums

[TyCreek]

What sticks in my head for higher voltages is that you can get more power (watts) with smaller wires due to less current needed (watt = amp x volt).

This concept was a huge factor when I was building electric bicycles using a hub motor where wire size was limited by the space in the axel. Splicing in thicker wires helped however, increasing the voltage of the battery supply was the biggest gain in performance and reduction in the heat generated by those small wires.

From an RV or off-grid perspective cables sized to carry current (amps) could get crazy big for power hungry use. So really there's no choice but to increase voltage. To increase voltage we connect cells in series making the battle of cell variance factors increase. Balance of individual cells or cell groups is what leads us to circuit controlled array storage systems (BMS is one of the acronyms).