Pete789 said:Homework Statement
Electric motor in put power rating is 17.5kw
Voltage is 48V
Battery is 7.5kw/h
Average W needed to maintain motor per sec is 1446.7W
Homework Equations
Motor: W=I*V > I = 364.58Amps
The Attempt at a Solution
My attempt: If 1kw = 3.6 x10^6J > 7.5 * 3.6 x 10^6 = 2.7 x10^7
Then the battery is 2.7 x10^7 Jouls
I can't go any further than this. Can anyone help please?
P789
The estimated battery life is affected by several factors such as the type and quality of the battery, the device's usage and settings, and the external environment in which the device is used.
The estimated battery life is usually an approximation and can vary based on the factors mentioned above. It is important to note that the estimated battery life may also change over time as the battery ages.
Yes, the estimated battery life can be improved by optimizing the device's settings, such as reducing the screen brightness, turning off unused features, and using battery-saving modes. Regular maintenance of the battery, such as avoiding extreme temperatures and properly charging and discharging the battery, can also help improve its performance.
The best way to prolong the estimated battery life is to follow the manufacturer's recommendations for charging and using the device. It is also important to avoid overcharging the battery and to use it until it is completely drained before recharging.
The estimated battery life can usually be found in the device's settings or by hovering over the battery icon. Many devices also have a battery health feature that shows the current health and estimated battery life of the device's battery.