More and more NZ businesses are switching from diesel or LPG forklifts to electric models, thanks to their cleaner operation, lower running costs, and quieter performance. But how do electric forklifts work? Understanding the mechanics behind these machines can seem complicated if you’re not a trained operator. That’s where we step in, we’ll break it down step by step, explain the main components, and help you figure out if an electric forklift is right for your business or warehouse.
In this guide, we’ll break down exactly how electric forklifts work, explain the main components, and give you the answer you need to decide if one could be right for your operation.
What Is an Electric Forklift?
An electric forklift is a type of material handling equipment powered entirely by batteries, rather than fuel like diesel or LPG. They’re designed primarily for indoor or controlled environments, making them perfect for warehouses, retail facilities, and production lines where clean, quiet operation is essential.
Unlike diesel forklifts, which rely on internal combustion engines, electric forklifts run on electric motors powered by rechargeable batteries. They are easier to maintain, produce no exhaust emissions, and generally operate more quietly, a major bonus if you’re running a night shift or working in noise-sensitive areas.
In New Zealand, electric forklifts are commonly used in industries such as:
- Warehousing
- Distribution centres
- Food and beverage production
- Manufacturing facilities
- Retail logistics
The Main Components of an Electric Forklift
Understanding how electric forklifts work starts with knowing their core components. Each part plays a role in ensuring smooth, efficient, and safe operation.
Battery Pack
The battery is the heart of the forklift. It stores electrical energy that powers both the drive and hydraulic systems. Electric forklifts typically use either lead-acid or lithium-ion batteries.
- Lead-acid batteries are more affordable but require regular maintenance. This includes topping up the electrolyte. In other words, you need to add water to the forklift battery periodically and ensure proper ventilation during charging.
- Lithium-ion batteries are more expensive upfront but charge faster, require minimal upkeep, and last longer, making them ideal for high-utilisation sites.
Proper battery care is essential for keeping your forklift running smoothly and avoiding downtime.
Electric Motor
The electric motor replaces the internal combustion engine found in traditional forklifts. It powers two main systems:
- Drive motor — moves the forklift forward and backward.
- Hydraulic motor — lifts and tilts loads.
Electric motors are quieter, more responsive, and more efficient than diesel engines, especially in stop-start warehouse conditions.
Controller System
Think of the controller as the forklift’s “brain.” It manages power delivery from the battery to the motors, ensuring smooth acceleration, lifting, and energy efficiency. It also helps protect the motor from overloading and controls regenerative braking, which can send energy back into the battery.
Hydraulic System
The hydraulic system lifts, lowers, and tilts the forks. While diesel forklifts use a mechanical or hydraulic pump powered by the engine, electric forklifts rely on the electric motor to drive the hydraulic system, keeping things quieter and more energy-efficient.
How Electric Forklifts Actually Work (Step-by-Step)
Breaking it down step by step makes the process easier to understand. Here’s exactly what happens when an electric forklift is in action:
Step 1: Battery Stores Electrical Energy
The battery stores energy that powers all aspects of the forklift. Depending on the type like lead-acid or lithium-ion, it can store enough energy for a single shift or longer with opportunity charging. Proper battery care is important to ensure consistent performance.
Step 2: Operator Activates the System
The operator starts the forklift by turning the key or pressing the start button. This action powers up the controller system, preparing the drive and hydraulic motors for operation.
Step 3: Controller Distributes Power
Once activated, the controller distributes electricity from the battery to both the drive and hydraulic motors. The drive motor handles movement, while the hydraulic motor lifts, lowers, and tilts loads. The controller ensures smooth operation, prevents overload, and optimises battery usage.
Step 4: Regenerative Braking Returns Energy
When slowing down or lowering a load, the electric motor can recover some of the energy normally lost as heat. This energy is sent back to the battery, extending runtime and improving overall efficiency.
Step 5: Charger Replenishes the Battery
After a shift or when the battery is low, the forklift is plugged into a charger. Lithium-ion batteries charge quickly and can even use opportunity charging during short breaks, while lead-acid batteries take longer and need careful maintenance.
Common Misconceptions About Electric Forklifts
There are a few myths that often confuse NZ operators:
- “They’re not powerful enough.” Modern electric forklifts can lift several tonnes, comparable to many diesel models.
- “Batteries don’t last long.” With proper care, lead-acid and lithium-ion batteries can last years.
- “They’re only for small warehouses.” There are electric forklifts suited for large warehouses, multi-shift operations, and heavy-duty work.
Even with these advantages, regular forklift servicing is still important. Scheduled maintenance checks ensure the battery, hydraulics, brakes, tyres, and electrical systems stay in top condition. This keeps your forklift reliable, safe, and productive for years.
Is an Electric Forklift Right for Your Business Operation?
After understanding how electric forklifts work and their advantages, the next step is choosing between an electric and diesel forklift. Your decision will depend on your site, workload, and operational needs. Consider these questions:
- Indoor or outdoor use? Electric forklifts excel indoors; rough outdoor terrain may still favour diesel.
- Hours of operation per day? High-utilisation sites may benefit from lithium-ion batteries.
- Lifting capacity required? Match the forklift to the heaviest load you regularly handle.
- Charging infrastructure available? Make sure your site can safely charge and store batteries.
Frequently Asked Questions
How long does an electric forklift battery last?
The battery life depends on the type, usage, and maintenance. Lead-acid batteries typically last 1,500–2,000 charge cycles, while lithium-ion batteries can last 3,000–5,000 cycles, often providing several years of reliable operation with proper care.
Can electric forklifts be used outdoors in New Zealand?
Yes, electric forklifts can be used outdoors, but they’re best suited for flat, paved surfaces. Wet or uneven terrain can reduce battery efficiency and may require a diesel or LPG alternative for heavy outdoor use.
Are electric forklifts more expensive than diesel forklifts?
The upfront cost of an electric forklift is usually higher than a diesel or LPG model. However, lower operating costs, reduced maintenance, and energy efficiency often make electric forklifts more cost-effective over the long term.
Do electric forklifts require special maintenance?
Electric forklifts generally require less maintenance than diesel models because they have fewer moving parts. Regular checks focus on battery health, tyres, hydraulics, and electrical systems, keeping them reliable and safe for everyday use.
Ready to Learn More About Electric Forklifts?
At Stellar Machinery, we’ve been helping businesses across New Zealand find the right forklifts for over 40 years. Whether you’re looking for electric forklifts, diesel, or LPG models, we provide expert advice, reliable equipment, and practical solutions for your site and operations.
If you’re ready to explore your options or need hands-on guidance, get in touch with us today. Call 0800 995 057 or email paul@stellarmachinery.co.nz or rohit@stellarmachinery.co.nz.
