In running long-distance, run remote region, do not need to consider to carry fast problem. Should consider batteries capacity issue. Allow generous batteries, ability runs further leg. We see two groups of batteries, voltage is different, the size is distinct, after n is put, the work that who does finally is some more.
See the first group of batteries above all. 60V32ah, can make how many work so finally. 60 × of ＝ of time of discharge of × of voltage × electric current 1 ＝ of 32 × 1.92kwh of 1920 watt-hour ＝ , so the n that says this batteries group can offer 1.92kwh.
Seeing another group of batteries. 72V22.5ah and above same algorithm 22.5 × of 72 × 1620 watt-hour of 1 ＝ ＝ 1.62kwh
Apparent, batteries of the first group of 60V wins out. Course of development of boat of electric car add also can compare 72V that group of batteries are bit more. So, those who want to run is a bit further the electric motor-car that chooses 60V32ah.
