Choosing the correct battery voltage is one of the most important decisions when designing or replacing an EV battery pack. 48V, 60V and 72V battery systems are commonly used in electric scooters, bikes, motorcycles, three-wheelers, utility vehicles and other light electric vehicles.

The correct voltage depends on your motor/controller voltage, required speed, power, battery capacity, current requirement and available space.

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Quick Comparison

*The exact nominal voltage depends on the cell chemistry and configuration. The values above use conventional Li-ion/NMC cells as an example.

What Does EV Battery Voltage Mean?

Lithium battery packs are generally built by connecting cells in series (S) and parallel (P).

For conventional NMC/Li-ion cells:

1 cell ≈ 3.6–3.7V nominal

Therefore:

48V Battery

13S

13 × 3.7V ≈ 48.1V

Maximum charging voltage:

13 × 4.2V = 54.6V

60V Battery

16S

16 × 3.7V ≈ 59.2V

Maximum charging voltage:

16 × 4.2V = 67.2V

72V Battery

20S

20 × 3.7V ≈ 74V

Maximum charging voltage:

20 × 4.2V = 84.0V

These are common configurations—not universal standards. The exact pack voltage must match the vehicle’s electrical system.

48V EV Battery

A 48V battery is widely used in smaller electric vehicles.

Common applications

• E-bikes
• Electric scooters
• Low-speed EVs
• Small utility vehicles
• Some three-wheelers
• Small industrial vehicles

Advantages

• Relatively simple system
• Widely available components
• Lower system voltage
• Suitable for many light EV applications
• Generally easier to package

Limitations

For higher-power motors, a 48V system requires more current.

For example, ignoring losses:

3,000W ÷ 48V ≈ 62.5A

Higher current means larger requirements for:

• BMS
• Cables
• Connectors
• Fuse
• Controller

60V EV Battery

A 60V-class battery provides a middle ground between 48V and 72V systems.

A common NMC configuration is:

16S

with approximately:

59.2V nominal

and:

67.2V full charge

Common applications

• Electric scooters
• Electric motorcycles
• Performance e-bikes
• Utility EVs
• Three-wheelers

Advantages

• Higher voltage than 48V
• Lower current for the same power
• Can support higher-power systems
• Good balance between system size and performance

For a 3,000W motor:

3,000W ÷ 60V ≈ 50A

Again, actual current will vary with efficiency and operating conditions.

72V EV Battery

A 72V-class battery is generally used where higher power and performance are required.

A common NMC configuration is:

20S

with approximately:

74V nominal

and:

84V full charge

Common applications

• Electric motorcycles
• High-performance scooters
• High-power EVs
• Utility vehicles
• Custom EV projects

Advantages

• Lower current for the same power
• Suitable for higher-power motors
• Potentially better high-power system efficiency
• Suitable for performance-oriented EV designs

For a 5,000W motor:

5,000W ÷ 72V ≈ 69.4A

A lower current at higher voltage can reduce conductor losses for the same power, assuming the complete system is designed appropriately.

48V vs 60V vs 72V: Current Comparison

This is one of the biggest advantages of increasing voltage.

Suppose an EV needs approximately 5,000W.

Ignoring conversion losses:

48V

5,000 ÷ 48 = 104A

60V

5,000 ÷ 60 = 83.3A

72V

5,000 ÷ 72 = 69.4A

So, for the same power:

Higher voltage → Lower current

This can help reduce:

• Cable losses
• Connector losses
• BMS current requirements
• Heat generated in conductors

However, the entire system must be rated for the selected voltage.

Does Higher Voltage Mean More Speed?

Not automatically.

Vehicle speed depends on the complete system, including:

• Motor winding
• Motor KV/speed characteristics
• Controller
• Battery voltage
• Wheel size
• Gear ratio
• Vehicle weight
• Aerodynamic load

Increasing voltage can allow a compatible motor/controller system to operate at higher speed or power, but simply installing a higher-voltage battery into a vehicle designed for 48V can damage components.

Does Higher Voltage Give More Range?

Voltage alone does not determine range.

Battery energy is approximately:

Energy (Wh) = Voltage × Capacity (Ah)

For example:

48V 50Ah

48 × 50 = 2,400Wh

60V 50Ah

60 × 50 = 3,000Wh

72V 50Ah

72 × 50 = 3,600Wh

So the 72V battery contains more energy because it has the same Ah capacity at a higher voltage.

But range depends on the vehicle’s energy consumption in Wh/km, not simply voltage.

48V 50Ah vs 72V 30Ah

This is a useful comparison.

48V 50Ah

48 × 50 = 2,400Wh

72V 30Ah

72 × 30 = 2,160Wh

Despite the 72V battery having a higher voltage, the 48V 50Ah pack actually has greater nominal energy.

Therefore:

Always compare battery energy in Wh or kWh, not only voltage or Ah.

BMS Requirements

The BMS must match the battery’s series configuration.

For conventional NMC/Li-ion:

The BMS must also be selected according to:

• Continuous current
• Peak current
• Charging current
• Cell chemistry
• Temperature sensors
• Communication requirements
• Balancing requirements

For high-performance EVs, a Smart BMS with CAN communication can be useful when the BMS needs to communicate with the vehicle controller or other electronics.

Charger Selection

The charger must match the battery’s chemistry and series configuration.

For conventional 4.2V/cell NMC/Li-ion:

48V 13S

54.6V charger

60V 16S

67.2V charger

72V 20S

84.0V charger

Do not select a charger based only on the label “48V”, “60V” or “72V.” Check the actual charging voltage specified for the battery.

Battery Capacity: How Many Ah Do You Need?

After selecting voltage, determine the required capacity.

For example:

72V 40Ah

Nominal energy:

72 × 40 = 2,880Wh

or approximately:

2.88kWh

For an EV consuming an average of 50Wh/km:

2,880 ÷ 50 ≈ 57.6km theoretical range

Actual range will vary considerably with:

• Rider/load
• Speed
• Road conditions
• Acceleration
• Temperature
• Tyre pressure
• Motor efficiency
• Controller efficiency
• Usable battery energy

Which Voltage Is Best for Your EV?

Choose 48V if:

• You have a low-to-medium-power EV
• Your controller is designed for 48V
• You want a simpler system
• Your power requirement is relatively modest

Choose 60V if:

• You need more power than a typical 48V system
• You want a middle-ground solution
• Your controller and motor support 60V
• You need to reduce current compared with a 48V system

Choose 72V if:

• You have a high-power motor
• Your controller supports 72V
• You need higher performance
• You want lower current for a given power
• The complete EV electrical system is designed for 72V

Important: Check the Controller Before Changing Voltage

The motor controller is one of the most important components to check.

For example, if your vehicle has:

48V controller

you should not simply install a 72V battery.

The higher voltage may exceed the controller’s maximum voltage rating and damage the controller or other components.

Check:

Battery → BMS → Controller → Motor → Charger

All components must be compatible.

48V vs 60V vs 72V Battery: Final Comparison

The key point:

There is no universally “best” voltage.

The correct choice is the voltage supported by your motor, controller, charger and BMS, combined with your required power, range and physical battery requirements.

Custom 48V, 60V & 72V EV Battery Packs

Lion Battery manufactures custom lithium battery packs for EV and e-mobility applications in configurations such as:

• 48V-class battery packs
• 60V-class battery packs
• 72V-class battery packs
• NMC / Li-ion battery packs
• LiFePO₄ battery packs
• 18650 battery packs
• 21700 battery packs
• Custom Ah capacities
• Smart BMS
• CAN / RS485 communication
• Custom connectors and enclosures

For a custom EV battery, provide the motor/controller specifications, required voltage, Ah, maximum current, dimensions and desired range.

Lion Battery

📞 Phone / WhatsApp: +91-9724991737
📧 Email: info@lionbattery.in
📍 Umargam, Valsad, Gujarat
🌐 Lion Battery