How far can you go on an e-bike
This depends on a number of factors. It will take practice and a bit of thinking to optimize your bike range.
The energy in the battery is not infinite. Avoid wasting it to maximize your range
Low tyre pressure, Friction due to poor maintenance, air resistance from loose clothing as well as heavy use of the throttle will eat up your battery energy. Riding up a hill consumes energy, but you will get most of this back if you coast down the hill.
Extreme temperature also affects the chemical reaction in the battery, so on cold day don't expect the same range as on a normal day.
Looking after your battery is vital, this means keeping it charged up and not running it flat and leaving it, This will kill the battery and it may not be recoverable. I suggest charging it when it is down to 30%, this can be done every day or so depending on usage. Then every month run it down to flat and fully recharge. This will keep the battery in good condition and maximize your riding range. Depending on how well you look after your battery it should last a couple of years.
Pedaling helps your battery, the less you pedal the more you battery has to do. Some bikes fitted with throttles allow the rider to ride without ever pedaling but this is not recommended, as well as being illegal in the UK, it means a very high current is drawn from the battery causing it to wear out prematurely.
dressed sensibly on a maintained 250R chopster you will consume about 24wh per mile pedaling on PAS 2 at 15 mph. speed, wind, road conditions and rider weight will affect this. the wh in a battery is found by multiplying the battery aH by the battery voltage.
remember IF you don't want to pedal I can sell you an electric moped/motorbike.
Another topic that gets a lot of questions is How fast can a Chopster go.
All E-bikes are subject to both the laws of physics and the country in which it is used. Here lets look at the physics. A 750 watt motor is rated at about one horsepower. I have not witnessed many 45mph horses so I don't expect a 750w chopster to travel at 45mph.
The 250watt is limited to 15.5 mph pedal assist. this means when you reach 15.5 mph the motor will stop assisting you, you can pedal faster or go downhill to get a faster speed.
The 750 watt and 1000 watt drive Chopsters can reach speeds up to 28mph on either throttle or pedal assist.
Speed is dependent on a lot of factors including the state of charge of the battery, riding conditions, air resistance rolling resistance and mass.
MeV can build you a Chopster with twin motors, for better off road traction, and also 72 volt 1500 or 2000 watt rear drive Chopsters for private road use.