Ni‑MH Hybrid Battery Pack for Toyota Prius 2nd Gen (NHW20） (2003-2011)

Product Overview

The Ni-MH Hybrid Battery is a high-reliability traction battery engineered exclusively for the second-generation Toyota Prius (NHW20, 2003–2011). As a core component of Toyota’s iconic Hybrid Synergy Drive (HSD) system, this nickel-metal hydride battery features a modular, air-cooled design, delivering consistent high-rate charge/discharge performance to support electric assist, regenerative braking, and low-speed EV mode. Fully OEM-compatible in voltage, capacity, and dimensions, it is a direct plug-and-play replacement that restores hybrid efficiency, fuel economy, and drivability for aging NHW20 Prius models, while maintaining the durability and reliability the Prius is known for.

Key Features

• 100% NHW20 Compatibility: Tailored for Toyota Prius 2nd Gen (NHW20) 2003–2011, fully matching original HSD system specifications.
• High-Quality Ni-MH Cells: Premium prismatic Ni-MH cells with low self-discharge, stable output, and resistance to deep-cycle degradation.
• Modular Air-Cooled Design: 28 series-connected modules (9.6V each) with integrated air cooling, ensuring consistent performance in all climates.
• HSD Optimized: Calibrated for Toyota’s “shallow charge-discharge” cycle (20%–80% SOC), maximizing cycle life for hybrid operation.
• OEM-Equivalent Performance: Matches original 270.4V system voltage and 6.5Ah capacity, restoring factory-level power and fuel efficiency.
• Advanced Protection: Built-in overcharge, over-discharge, over-current, and over-temperature protection, aligned with original BMS.
• Plug-and-Play Installation: Direct fit with no modifications required; includes all necessary busbars and connectors.
• Long Service Life: ≥1,500 full charge-discharge cycles; ≥3,500 shallow cycles (typical hybrid usage), exceeding OEM longevity standards.
• Rigorous Quality Testing: Each pack undergoes voltage balance, capacity, and thermal performance tests to ensure reliability.