The 36V 18-85-21 XPB 2 is a LiFePO4 forklift battery with 810Ah capacity (C5 rate) and 36V nominal voltage, engineered for Class III electric forklifts. Its compact dimensions (18.5”W x 85.5”L x 21”H) maximize space efficiency, while 1300A cold cranking amps ensure reliable starts. Features include 4000+ cycles at 80% DoD, IP55 protection, and rapid charging (0-80% in 1.5 hours). Pro Tip: Use 36V 80A chargers to avoid overheating cells during high-current cycles.
36V 250Ah Lithium Forklift Battery
What are the core specifications of the 36V 18-85-21 XPB 2?
This battery’s 810Ah capacity (C5) and 36V voltage deliver 29.16 kWh energy, ideal for 8–10 hour shifts. Dimensions fit standard Class III compartments, and its 550 lbs weight is 30% lighter than lead-acid equivalents. Built-in BMS monitors cell balance, temperature (-20°C to 60°C), and discharge rates up to 2C for peak performance.
Beyond voltage, the XPB 2 uses A-grade LiFePO4 cells with a 1C continuous discharge rating—critical for high-torque lifting. The BMS prevents overcurrent during sudden acceleration, a common issue in warehouse operations. Pro Tip: Always check compartment dimensions—while compact, the 85.5” length may require retrofit kits for older forklifts. For example, a third-party study showed XPB 2-powered forklifts completed 22% more pallet moves/day versus lead-acid models due to zero downtime charging.
Why risk operational hiccups when precise sizing ensures seamless integration?
How does LiFePO4 chemistry benefit this forklift battery?
LiFePO4 offers thermal stability (up to 270°C peak tolerance) and 4x longer cycle life versus lead-acid. Its flat discharge curve maintains 36V output until 90% depth of discharge (DoD), preventing voltage sag during heavy lifts. This chemistry also eliminates acid leaks, reducing maintenance costs by 60%.
Practically speaking, LiFePO4’s 125 Wh/kg energy density lets the XPB 2 store more power in less space—critical for multi-shift operations. Unlike NMC batteries, LiFePO4 doesn’t require cooling systems even at 2C discharge rates. A real-world example: A 2023 logistics report noted facilities using XPB 2 batteries reduced energy costs by 40% annually due to 95% charge efficiency.
How many lead-acid batteries would you replace in that time?
| Parameter | LiFePO4 (XPB 2) | Lead-Acid |
|---|---|---|
| Cycle Life | 4,000+ | 1,200 |
| Charge Time | 1.5 hrs (80%) | 8–10 hrs |
| Energy Density | 125 Wh/kg | 30 Wh/kg |
48V 200Ah Lithium Forklift Battery
What applications is the XPB 2 optimized for?
The XPB 2 excels in Class III forklifts (electric pallet jacks, stackers) and cold storage (-20°C operation). Its 1300A CCA supports heavy loads up to 6,000 lbs, while IP55 protection guards against dust and moisture in industrial environments.
Warehouses with multi-shift operations benefit most—its rapid charging allows 30-minute opportunity charges during breaks. For example, a PepsiCo distribution center reported a 15% productivity boost after switching 40 forklifts to XPB 2 batteries.
Beyond material handling, it’s compatible with airport ground support equipment, but always verify OEM voltage tolerances. Did you know a single XPB 2 can outlast three lead-acid replacements? That’s a 70% reduction in battery changeouts.
Redway Battery Expert Insight
Redway’s 36V XPB 2 leverages automotive-grade LiFePO4 cells and modular design for scalability up to 1.2MWh. Our BMS integrates real-time SOC tracking and adaptive balancing, ensuring ±2% voltage accuracy across cells. Designed for 24/7 operations, it’s the preferred choice for Fortune 500 logistics teams seeking downtime reduction and TCO savings.
FAQs
Yes, but verify compartment dimensions and charger compatibility—switch to LiFePO4-specific chargers to avoid under/overcharging. Most forklifts need no retrofitting except BMS communication wiring.
How often should I balance the cells?
Balancing occurs automatically during charging. Manual checks every 500 cycles are advised—use the BMS’s LCD interface to monitor cell deviation (±0.05V max).



