A 72V DC generator is more than just another power source—it’s a high-efficiency solution designed for applications where reliability, compactness, and performance truly matter. At Innotec Power, we design and manufacture 72 volt DC generators that excel in mobile, stationary, and hybrid power applications. Whether you need to charge a large battery bank, provide backup power for renewable energy systems, or integrate a generator into an advanced hybrid vehicle, our solutions deliver dependable performance in the most demanding environments.
Our 72V generator heads can be configured for constant terminal voltage with a regulator or adjusted to a charging voltage range for direct battery integration. This flexibility ensures that your system works seamlessly—whether you’re powering heavy-duty machinery or supporting an off-grid installation.
Why Choose a 72 Volt DC System?
A 72V battery bank strikes the perfect balance between efficiency, current handling, and scalability. Compared to 24V or 48V systems, 72 volt DC generators deliver the same power with less current, which means reduced wiring losses, smaller conductor sizes, and faster charging. This makes them a popular choice for:
Electric and hybrid construction machinery
Industrial material handling equipment
Marine auxiliary power systems
Off-grid agricultural equipment
Backup for solar and hybrid installations
Military and defence applications
For example, in a solar hybrid setup, a 72V generator can supplement renewable power when sunlight is low, ensuring batteries are consistently charged without oversizing the system.
Key Advantages of 72V Over Lower Voltage Systems
Upgrading to a 72V DC generator brings multiple technical and operational advantages. Let’s explore these in detail:
1. Faster Charging with Lower Current
For the same power level, a 72V system draws significantly fewer amps compared to a 24V or 48V system. For example:
10 kW at 72V → ~140 amps
10 kW at 24V → ~400 amps
Lower current means faster charging times and less heat loss in cables, ensuring more power reaches your batteries or load.
2. Smaller Conductor Sizes
Reduced amperage allows the use of smaller gauge wiring. This not only cuts material costs but also saves space and reduces overall system weight—critical for mobile or vehicle-mounted setups.
3. Reduced Heat and Cooling Requirements
Since current flow is lower, electronics and power controllers run cooler. This can minimize the need for bulky heatsinks, additional cooling fans, or liquid cooling systems.
4. Improved System Efficiency
Less heat loss and smaller cable runs translate to better overall system efficiency. More of the generated energy is delivered where it’s needed—powering equipment or charging batteries.
72V DC Starter/Generator Technology
One of the standout features we offer is starter/generator functionality. Our 72V DC generator heads can be designed to perform double duty:
Act as a starter motor to crank the engine or prime mover
Switch to generator mode once the engine is running
Provide regenerative braking or energy recovery in hybrid applications
This dual-purpose capability reduces the need for separate starter motors, simplifying the system while saving weight, cost, and installation space.
Where 72 Volt DC Generators Excel
The versatility of our 72V generator heads makes them suitable for diverse environments:
Electric & Hybrid Vehicles – Providing both propulsion support and battery charging.
Material Handling Systems – Ensuring consistent performance for forklifts and warehouse vehicles.
Marine Power Systems – Delivering auxiliary or emergency power offshore.
Off-Grid Renewable Installations – Supporting solar arrays during cloudy days or at night.
Agricultural Machinery – Powering irrigation pumps, tractors, and harvesters in remote areas.
Defense & Military Use – Running reliably in rugged, high-vibration, and extreme-temperature conditions.
Considerations When Designing a 72V DC System
While 72V brings many benefits, there are also important design considerations:
Component Voltage Matching
Not all components—like inverters, controllers, and auxiliary devices—are readily available for 72V systems. Working with a supplier like Innotec Power ensures all parts are matched for compatibility.
Step-Down Converters
Some onboard electronics will still require lower voltages (e.g., 12V or 24V). DC-DC step-down converters are often needed to power these components efficiently.
Early System Planning
It’s best to define motors, controllers, and accessories early in the design phase to avoid voltage mismatch and ensure smooth integration.
Why Innotec Power is the Right Choice
When you choose Innotec Power for your 72 volt DC generator, you get more than a product—you get a complete engineering solution:
Custom Voltage & Output Ranges – Tailored to your system’s requirements
Heavy-Duty Engineering – Designed for high vibration, high temperature, and continuous operation
Starter/Generator Integration – Combine starting and generation in a single compact unit
Renewable Energy Compatibility – Perfect for solar, wind, and hybrid energy setups
Expert Application Support – From voltage selection to full system integration guidance
We also manufacture both engine-mounted 72V generators and PTO-driven 72V generators, giving you options for fixed or mobile installations.