Electric Bike Voltage,watt and ampere

Electric Bike Voltage And Watts | Do ebike volt matter? (52v,48v,36volt)

When you are in the right mindset of going to buy an electric bike You will be going to witness a lot of terminologies regarding the electric bike voltage and watts. You will be going to have concerns about rather the 52-volt e-bike is faster than the 48-volt and 36volt ebike. Or rather a 1000watt Ebike has more potential than the 500 watts bike. These terminologies often got a buyer in a confusing shell. To keep one’s mind out of these concerns here we will be going to have a flow of recommendation solutions.

Electric Bike Voltage, Amps, and Watts. What do they mean?

Watts, Amps, and Voltage are the units of electricity. The watts are the power outcomes, Amps are the volume of outcome and the voltage is the pressure outcomes.

1. What is an Electric Bike Voltage(Voltage chart)?

Voltage is basically the pressure of electric current or the speed of electric current. The higher the amount of current is the higher the voltage will get. The voltage of an e-bike typically refers to the voltage of its battery system.

Battery voltage in e-bikes

In e-bikes there are various different battery voltages available.

  • 52 volts electric bike
  • 48 volts electric bike
  • 36 volts electric bike
  • 24 volts electric bike
electric bike voltage

I. Why 52 voltage electric bike is recommended

52-volt electric bikes are recommended in most cases as they give better performance in all terrain like streets, offroading, and the best battery range.

  • As the power is multiple of voltage and the amperes; the Higher the voltage will be the higher the power will be generated. It generates around 1000 watts of power. (higher voltage = more power)
  • The 52v electric bikes has a top speed of nearly 28mph but in some cases, it exceeds 30mph while providing great uphill torque.
  • The 52volts electric bike batteries can give a range up to 100 per charge.
battery voltage chart

II. 48 Voltage Electric Bike (Voltage chart)

48 Volt electric bikes run on 48v electrical systems.

  • It generates less power than the 52 volt electric bike. It generates 250 watts to 750 watts.
  • The top speed of a 48v electric bike is 28mph.
  • 48 voltage e-bike gives a range of 20 to 28 miles per hour.
52 volt battery voltage chart

III. 36 Voltage Electric Bike

A 36-volt ebike typically refers to an electric bicycle powered by a 36-volt battery system.

  • A 36-volt system can accommodate various motor power ratings, such as 250W, 500W, or even higher. 
  • The speed of a 36-volt e-bike can vary based on the motor power and local regulations. In many regions, e-bikes are speed-limited to 20 mph (32 km/h) to be classified as electric bicycles. 
  • It has a range between 20 and 50 miles (32 to 80 kilometers) on a single charge.

IV. 24 Voltage Electric Bike

A 24-volt Ebike typically refers to an electric bicycle powered by a 24-volt battery system.

  • Generally, 24 volt e-bike offers a range of 20 to 40 miles (32 to 64 Km) on a single charge.
  • 24-volt ebike has 200 to 250-watt power because an ebike its output power is related to its battery system.
  • It tends to have a lower maximum speed compared to a higher voltage system. 24v electric bike has 15 to 20 mph (24 to 32 km) speed on a single charge.
Electric Bike Battery VoltagePowerSpeedRange
52 volt electric bike1000 watts30-36 mph65-70 miles
48 volt electric bike250 watts to 750 watts28mph20 to 28 miles
36 volt electric bike250W, 500W, or even higher20mph20 and 50 miles
24 volt Electric bike200 to 25015 to 20mph20 to 40 miles

2. What is a Watt?

Watt is a similar unit to the horsepower. Both, units represent the power outcomes.1 power is equal to the 745.7watt it seems like a figure in terms of powers. Watt is the multiple of the number of volts and the amps used.

Watts in Electric bike battery

  •  In ebikes the 250 watts is equivalent to 0.33 hp ebike.
  • The 500 watts of ebike is equivalent to a 0.67 hp ebike.
  • The 700 watts of ebikes is equivalent to a 1 hp ebike.
  • The 1000 watts of an ebike is equivalent to a 1.34 hp ebike.

The watts have a very fundamental relationship with the voltage and the amps. If amps are high and voltage is low it would not move anything. Or if the Ampere is low and voltage is low the outcome will result in no movement.

For best recommended e-bike power and voltage is to have a high ampere and voltage to generate high watts resulting in high power. As for high-speed lovers the more the power is the more will be the fun.

In the case of professional cyclists they generate 400 watts but using their body. It takes a lot in return to generate such high power with the human body but a 500 watts electric motor can do the same power generating outcomes for you with the pedal assisting capability.

How does Watts compare to MPH (miles per hour)

We have no scale to measure the watts to mph as we cannot measure the top speed of any vehicle by measuring the hp it has. In the case of many industrial used vehicles, they have very high horsepower but usually, they have less speed.

So in the case of ebikes the more power it has the more friction it cancels out to move faster. Higher power e-bikes have high top speeds if they have the same basic design and structural values.

Electric Bike Voltage

3. What is an Amp?

Amp is the measure of the amount of electric current. The more the Amps are the more electrons can flow through it. For instance, think of Amps as the tunnel or a passage from where the flow of water has to be flown. The bigger the size of the tunnel is the more volume of water can pass through it. It is the same in the case of Amps .50Amps can have the ability to pass more electricity than the 30Amps circuit.

What is an Amp-hour?

Amp-hour is the amount of electric current a ebike battery can hold. A 250 watts ebike can have 36 volts and 8 amps and it can run for an hour in raw. is how it differs .as if we have 36 volts with 16 amps the time constraint will be lowered down to 30 mins and with equal volts and amps the time will be narrowed down to 15 mins.

That is how the amp-hour is a significantly important factor as the more the volts and amps are the more the power generation is and the faster the drain will be. It is like you are compromising speed for the battery will gonna last.

4. E-Bike Batteries

The batteries in e-bikes are made up of several battery cells that have affixed amounts of volts. It varies for different types of batteries. In case of lithium-ion batteries, each cell has 3.6 volts per average.

The 100 percent charged lithium battery has 4.2 volts per cell if it decreases to 3.6 by drowning to 80%. While it is at a dead end it will have around 3.4 volts per cell.

If cells are drowned to 3 volts battery will never be able to charge again. It is considered dead at that point.

There is a downfall named the voltage sags. If the battery cells face very high currents their voltage sags. So higher power efficient cell batteries are recommended for high performance.

If a person with a heavyweight rides the E-bike battery will drown faster than a person with a low weight.

Read More: How Long Do Electric Bike Batteries Last?

Ebike-weight: How much does an Electric Bike Weight?

5. Electric Motor Basics

Here we will put light on how the motor has relationships with the amps, volts, and watts.

Motor k-value

In ebike terminology, all the ebikes have the motor velocity constant or motor k-value.

This k-value refers to the rpms. In the case of bikes, 100rpm*volts gives us the top rpms the ebikes will be going to attain. The Ebike cannot exceed the pre-set rpms unless you increase the volts.

For Example; The ebike with 15 volts battery will have 1500 rpms it cannot exceed this pre-set rpm. Whereas 20 volts can produce 2000rpms at its peak performance.

Read More: What’s The Difference Between Hybrid And Electric Bikes?

Motor controllers – how do they work?

Some questions are raised about the throttle of e-bikes. These questions are:

How electric bikes get slow and fast when they have a fixed amount of kv values.

The electric bikes have fixed kv values which is true it determines the top rpm or speed that an electric bike can achieve. The throttle response has a direct link with kv values.

How kv values do not affect the speed of the bike.

These kv values remain the same throughout the whole mechanism; the component that maintains the speed of an electric bike is the motor controller.

What is the kv value of Motors; What are its effects on the speed?

The motor controllers are nothing just an On/Off switch. This switch works as when the throttle is 25% the motor is on 25% and off 75%. It turns the on and off the motor according to the throttle response it gets. The 100% throttle results in a 100% switch that then gives the top speed.

6. Classifications of E-Bikes

The world has put on the standards and laws for the determination of e bikes. These Ebikes are set to fall on these three levels.

  • Class 1 e-bike
  • Class 2 e-bike
  • Class 3 e-bike
  1. Class 1 e-bike: Provides pedal assistance up to 20mph, with no throttle option.
  2. Class 2 e-bike: Operates solely on the motor and maintains a maximum speed of 20mph.
  3. Class 3 e-bike: Capable of reaching speeds up to 28mph but doesn’t offer pedal assistance or a throttle feature.


The e-bikes are verily a top-notch ideal tech to ease one’s life. They are far better than their predecessors. This knowledge will help you understand the statements of power in electric bikes. The terminologies used to draw the efficiency results and this knowledge will ease you in buying the best machine for your usage. More power is necessary to help you climb the uphills and to do off-roading but they can be resultant of a fast battery drowning in e-bike. You can compromise the power with the battery life spans. Or save battery and have less power in your hands.


Firstly, it’s important to search for a sturdy frame with robust dropouts, which are the parts of the bike that hold the axles of the wheels. The ideal bikes for converting to electric power are those made of steel with steel dropouts. While aluminum bikes can work too, they often need an extra torque arm to reinforce the dropouts.

If you don’t already own a bike, the expense of purchasing a bike, getting an electric conversion kit, and installing it might not be worthwhile in terms of time, effort, and money. However, if you already have a bike in decent condition, the investment in terms of both money and effort will likely be more worthwhile.

Yes, you can convert your mountain bike to an eBike by adding a powered wheel, attaching a drive unit to the bottom bracket, or concealing a motor in the seatpost for assistance on hills. Multiple options make the conversion accessible for improved riding capabilities.

Perform basic maintenance on your electric scooter at least once a month. This includes checking the battery, cleaning the scooter, inspecting the wiring, and tightening any loose screws or bolts. Additionally, you should charge the battery regularly and store the scooter properly when not in use.

The speed of a 48V 1000W electric bike will depend on various factors, but it can typically reach speeds of up to 28-30 mph (45-48 km/h) under electric power alone.

A 1000W electric bike can reach speeds of approximately 45-48 km/h (28-30 mph) under electric power alone, depending on factors such as terrain, weight, and other variables.

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