4s 5000mAH vs 5s 5000mAH runtime??

[MetalMan]

If you gear for the same top speed on 5s as it ran on 4s then your average energy consumption should be the same. 5s 5000mah has roughly 90watt-hours, and 4s 5000mah has about 72watt-hours. So, theoretically your runtime would increase by about 25%. So if you get 20mins now, you can expect something like 25mins.

Geared for the same speed, the 5s 5000mah is going to have less voltage drop than 4s 5000mah. This means you have more power available, and thus the potential for a greater rate of energy consumption. So runtime typically might increase by a maximum of 25% depending on your driving.