Lead-acid can cost less overall when a forklift works only a few hours a week and has plenty of time to charge. Lithium-ion becomes more attractive as utilisation rises, particularly where battery maintenance, changing batteries or waiting for a charge interrupts the working day. Neither is automatically the cheaper choice.
The useful comparison is what each option costs to do your work over the years you intend to keep it. Start with the battery and charger price, then add electricity, maintenance, any extra batteries and the cost of keeping the truck available, without assuming lithium always pays for itself.
Lithium vs lead-acid forklift batteries at a glance
This comparison covers lithium-ion and conventional flooded lead-acid traction batteries. Other lead-acid designs have different maintenance requirements, so check the exact battery offered.
| Cost factor | Flooded lead-acid | Lithium-ion |
|---|---|---|
| Initial investment | Often lower on comparable equipment | Often higher; compare the complete package |
| Battery care | Watering, cleaning and charging routines | No watering; inspections and charger care still matter |
| Charging strategy | Conventional charging suits a substantial off-duty window; other strategies need suitable equipment | Suitable systems allow top-ups during breaks |
| Extended shifts | May need spare batteries or a managed charging strategy | May reduce battery changes if charging windows meet demand |
| Long-term cost | Can suit light use and a tight purchase budget | Can suit intensive use where operating savings justify the premium |
Across the electric forklift range DJJ Equipment sells, the right starting point is the load, lift height and workload. Battery choice follows from those requirements.
Upfront cost of lithium and lead-acid batteries
A cheap battery quote is not necessarily a cheap working solution. Check the charger, installation, electrical supply and any equipment needed to handle spare batteries. For a new truck, compare complete forklift packages. For an existing truck, compare approved replacement systems.
Brand and specification can outweigh the battery price difference. A promotional lithium forklift from one range may cost less than a lead-acid truck from another. That does not show which battery is cheaper on equivalent equipment, because electric forklift prices vary more with brand and capacity than with battery type.
There is no single replacement-battery price that applies across forklift sizes. Voltage, capacity, battery dimensions and integration requirements all affect the quote. Obtain the installed price for your model before calculating a payback.
For a closer comparison, the Hangcha X Series 1-3.5 t electric forklift is offered with lead-acid and lithium battery options. Ask for configurations that meet the same job, including battery capacity and charger output.
Check capacity in context, too. An 80V, 500Ah battery has a nominal energy capacity of 40kWh: voltage multiplied by amp-hours, divided by 1,000. That is stored energy on paper, not a promise of usable energy or working hours. Ask the supplier to explain usable capacity and charging requirements for the proposed system. Two batteries with the same Ah figure but different voltages are not equivalent.
How much maintenance does each battery need?
Flooded lead-acid batteries need regular electrolyte checks, water top-ups, cleaning and, where the maker specifies it, equalisation charging. Lithium-ion batteries need none of those jobs, but their cables, connectors, charger and battery management system still need checking. Lead-acid care may be straightforward, but someone has to do it, so include that person's time, consumables and any specialist battery service in the annual budget.
Lithium removes the watering job and the acid handling that goes with it. Topping up a lead-acid battery means working with acid, so staff need eye and skin protection and a spill kit close by. It does not mean a lithium forklift needs no servicing.
Tyres, brakes, mast components and hydraulics stay on the service schedule whichever battery you choose, so those costs don't change with the battery type.
Before putting a dollar figure against maintenance savings, record the battery work your team currently does. Removing a task frees staff time; it only reduces cash spending if it avoids a paid cost such as overtime, contractor work or extra labour.
For example, an assumed ten minutes of battery care each week over 50 weeks adds up to about 8.3 staff hours. At an assumed loaded labour cost of $45/hour, that is $375 a year before consumables. It is worth including, but on its own it would not recover a large purchase premium quickly. Use the difference between the two systems' maintenance requirements, rather than treating all lithium inspection time as zero.
How long does a forklift battery take to charge?
A conventional lead-acid charge usually needs a long off-shift window, plus cooling time before the battery goes back to work, while a suitable lithium system can be topped up during breaks. The exact time depends on the battery, how flat it is and the charger supplied. As one example, Hangcha's high-voltage XH series lithium forklifts charge in about an hour with the fast charger.
A forklift charging overnight while the warehouse is closed is not necessarily losing productive time. A forklift unavailable while a delivery truck waits at the loading dock is a different matter.
For a conventional lead-acid setup, check whether charging and any required cooling can be completed between shifts. Ask for a charging schedule for the proposed configuration rather than relying on a general charging-time estimate.
Opportunity charging means plugging in during breaks or gaps in work. It can reduce battery changes and help keep the forklift available, provided those charging windows restore enough energy for the next period of work.
A lithium battery does not automatically remove the need for spare capacity. Heavy workloads, short breaks or limited site power can still leave a gap between energy used and energy replaced. Lead-acid systems may also support alternative charging strategies where the battery and charger are designed for them.
Map the busiest working day, including travel, lifting and available breaks. Have the supplier check the battery and charging plan against that workload before assuming one pack will cover every shift.
Electricity costs of lithium vs lead-acid
Compare the mains electricity each system uses to complete the same workload. Battery amp-hours alone do not tell you what appears on the power bill, and a larger battery does not necessarily cost more per pallet moved.
For illustration, if one system uses 4kWh less per working day, electricity at an assumed $0.30/kWh gives a saving of $1.20 a day, or $300 across 250 days. These are calculation inputs, not measured performance or an Australian business tariff estimate.
Use your actual tariff, including applicable demand charges, and measured or supplier-supported energy figures. If you plan to charge during the day from rooftop solar, check the site conditions first, and count any export income you give up.
Battery life, warranty and replacement cost
Lithium packs are usually rated for more charge cycles than flooded lead-acid batteries, which can reduce replacement costs, but a cycle-life figure is not a guaranteed number of years. Ratings depend on the exact pack, how deeply it is discharged and the capacity it must still hold at the end of its rated life.
Ask for the exact pack's cycle-life conditions, retained-capacity threshold and warranty limits. Battery warranty terms vary by model, so check them for the forklift you are quoted. Also check the replacement cost and whether the remaining capacity will still cover your workload. A battery can remain functional while no longer completing the job between charging opportunities.
For equipment supplied by DJJ, warranty and product questions go to after-sales support on 1300 646 747.
Battery charging area, weight and disposal
Lead-acid batteries give off hydrogen while charging, so the charging area needs good ventilation, and the acid handling described above needs eye protection and a spill kit nearby. Lithium batteries don't vent gas during normal charging, but they still need care: use the charger made for the battery, don't leave it charging unattended for long periods and never use a damaged or swollen battery.
Weight matters as well. On a counterbalance forklift, the battery is part of the counterweight, so a lighter battery can change the truck's stability and rated capacity. If you are replacing lead-acid with lithium in an existing truck, have the complete conversion approved for that model, including battery weight, dimensions, voltage, controls and charger compatibility.
Used lead-acid batteries are hazardous waste and must not go into general rubbish. Lead-acid is widely recycled, so ask the supplier who takes the old battery back and whether there is a charge, and include that in the comparison.
How much must lithium save to pay back the extra cost?
Suppose an installed lithium solution costs $6,000 more than a suitable lead-acid alternative after allowing for the charger and setup. The table shows two hypothetical annual operating-saving budgets. These are illustrative allowances, not battery prices, DJJ quotes, customer results or expected savings.
| Assumed difference | Light-use example | Higher-use example |
|---|---|---|
| Extra initial cost for lithium | $6,000 | $6,000 |
| Annual electricity saving | $150 | $400 |
| Annual battery-care labour and consumables saving | $250 | $500 |
| Annual battery-changing labour saving | $0 | $900 |
| Total annual operating saving | $400 | $1,800 |
| Operating savings over five years | $2,000 | $9,000 |
| Net five-year cost difference | Lithium costs $4,000 more | Lithium costs $3,000 less |
| Simple payback | 15 years | About 3.3 years |
The $900 handling allowance could represent 20 staff hours a year at an assumed loaded labour cost of $45/hour. Only include it where battery changing would actually be required. Do not count the same minutes again as downtime savings.
This simplified example uses constant annual savings and undiscounted Australian dollars on an ex-GST basis. It excludes finance, battery replacement, disposal, residual value and general forklift costs assumed equal. Add any differences in those items to your own comparison. Where saved labour is redeployed rather than removed, treat it as capacity gained rather than a cash saving.
The useful threshold here is $1,200 a year: that is what a $6,000 premium must recover over five years before finance and other differences. If the savings cannot be supported by your workload and records, the lower initial investment may be the better purchase.
Which forklift battery suits your workload?
Occasional loading and unloading
For a truck working briefly a few days a week, a lower purchase price can be difficult to recover through operating savings alone. If lead-acid meets the workload and your team can maintain it properly, it deserves a place on the shortlist. For seasonal needs, compare forklift hire with either purchase option.
A regular single shift
This is where the answer often needs closer inspection. A suitable lead-acid battery may cover the work and charge overnight. Lithium may still be worthwhile where maintenance time is expensive, use is growing or short charging windows offer a practical advantage. Compare actual working hours, not just opening hours.
Busy or multi-shift operations
The costs of battery changes, handling equipment and interruptions become more important as demand rises. Lithium may reduce those costs, provided its charging plan supports the workload. Get that plan checked before removing spare batteries or assuming the truck can work every shift on one pack.
Lead-acid usually suits light, predictable work with time to charge, while lithium earns its premium where hours are long and charging windows are short. Before you ask for a quote, note your daily working hours, shifts, busiest day, charging breaks and site power, plus the model, serial number and battery details for an existing truck. DJJ has teams in Sydney, Brisbane and Perth: call 1800 355 388 to compare battery options for your workload.
