The J3.50-4.00EX is a 4-wheel electric forklift designed for heavy-duty logistics, offering 3.5–4-ton load capacities. Powered by 72V lithium-ion batteries, it excels in indoor/outdoor environments with zero emissions and features ATEX certification for explosive atmospheres. Its dual AC motor system ensures 18 km/h travel speeds, while regenerative braking extends battery life. Ideal for manufacturing and warehousing, it operates up to 10 hours on a single charge (80V 400Ah battery).
80V 400Ah Forklift Lithium Battery
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What safety certifications does the J3.50-4.00EX hold?
The J3.50-4.00EX meets ATEX Directive 2014/34/EU for explosive atmospheres (Zone 1/21) and features IP54 water resistance. Its explosion-proof electrical components and temperature-controlled motors prevent ignition risks in volatile settings like chemical plants. Pro Tip: Schedule monthly spark checks on connectors—carbon buildup in terminals can compromise safety ratings.
Beyond basic certifications, this forklift integrates gas-tight battery enclosures and pressure-relief vents to contain thermal events. For example, in ethanol storage facilities, its copper-free spark-resistant brakes reduce static discharge risks by 90%. But how does it handle hydrogen-rich environments? Specialized hydrogen sensors automatically shut down motors if concentrations exceed 2% LEL (Lower Explosive Limit). Transitioning from standard models, the J3.50-4.00EX uses epoxy-coated circuit boards to resist corrosive vapors—critical for semiconductor fabs using acidic gases.
How does its load capacity compare to ICE forklifts?
Unlike 3.5-ton diesel forklifts limited by torque curves, the J3.50-4.00EX delivers flat torque up to 4 tons at all speeds. Its 48V/72V dual-voltage architecture optimizes energy use—48V for precision lifting, 72V for high-speed transport. Pro Tip: Avoid overloading beyond 4 tons—lithium batteries sag voltage under extreme strain, triggering BMS shutdowns.
| Model | Max Load | Lift Speed |
|---|---|---|
| J3.50-4.00EX | 4,000 kg | 0.45 m/s |
| Diesel IC | 3,500 kg | 0.38 m/s |
Practically speaking, electric motors provide instant torque, making the J3.50-4.00EX 18% faster on inclines than combustion counterparts. However, what happens in cold storage? Lithium-ion efficiency drops below -10°C, so operators in freezer warehouses should opt for heated battery compartments (optional).
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What battery specifications power this forklift?
Standard models use 80V 400Ah LiFePO4 packs (32kWh) with 2,000-cycle lifespans. Charging via 10A smart chargers takes 5 hours, while opportunity charging during breaks extends runtime 30%. Pro Tip: Never discharge below 20% SOC—deep cycling below 15% accelerates cell degradation in lithium packs.
| Chemistry | Energy Density | Recharge Cycles |
|---|---|---|
| LiFePO4 | 140 Wh/kg | 2,000+ |
| Lead-Acid | 40 Wh/kg | 500 |
Transitioning from lead-acid, lithium batteries cut downtime by 70% with rapid charging. For instance, a 30-minute lunch break charge adds 25% capacity—enough for 2.5 hours of light operation. But what if the charger malfunctions? Integrated BMS units prevent overvoltage by capping input at 88V (10% above nominal 80V).
48V 300Ah Lithium Forklift Battery
Redway Battery Expert Insight
FAQs
Yes, in most cases—its 4-ton capacity and 18 km/h speed match IC performance, with 60% lower energy costs. Exception: extreme cold (-25°C) still favors diesel due to lithium efficiency loss.
How often does the battery need replacement?
LiFePO4 lasts 5–7 years (2,000 cycles) vs. lead-acid’s 1.5 years. Capacity stays above 80% for 1,800 cycles if maintained at 20–80% SOC.
Does regenerative braking really save energy?
Yes—20% of braking energy is recaptured, adding 45 minutes of runtime per 8-hour shift. However, steep downhill runs may overload circuits—use mechanical brakes for grades over 10%.
