Quote:
Originally Posted by ScottC
|
One quick clarification. The Peukert effect from heavier power loads on batteries is overwhelmingly a lead-acid battery issue. With Lithium Ion batteries, the Peukert exponent is essentially 1 so there is little effect on battery capacity within the range of intended use.
The gain from going slow in a boat is because the energy required to move the boat increases by the square of the speed. So doubling speed, say from 3 to 6 kts, will require 4 times as much power. You will get to your destination in half the time, but it will take twice the battery capacity to do it, i.e. 1/2 the nm/kWh of stored energy.