Ni‑MH Hybrid Battery Pack for Toyota Grand Highlander (2023–2025)

Product Overview

The Ni-MH Hybrid Battery is a heavy-duty, OEM-compatible traction battery exclusively engineered for the Toyota Grand Highlander (2023–2025) (XU80 series), tailored for its full-size three-row SUV hybrid powertrain. As a core component of Toyota’s advanced Hybrid Synergy Drive (HSD) system, it features high-density prismatic nickel-metal hydride cells, an enhanced dual-fan air-cooling system, and rugged modular construction. Optimized for the Grand Highlander’s larger size, heavier load capacity, and family-focused driving needs, this battery delivers stable high-power electric assist, efficient regenerative braking, and consistent fuel economy. Fully matched to the vehicle’s original BMS (Battery Management System) and hybrid control unit, it ensures seamless integration, plug-and-play installation, and long-term reliability—perfectly restoring the Grand Highlander’s hybrid performance for replacement or maintenance.

2. Key Features

100% Grand Highlander Compatibility: Tailored for Toyota Grand Highlander (2023–2025) XU80 series, fitting all hybrid trims (FWD & AWD) with no modifications required.

Premium Prismatic Ni-MH Cells: High-grade nickel-metal hydride cells with low self-discharge (≤2.8% per month) and superior high-load discharge stability, built for full-size SUV demands.

HSD-Optimized for Full-Size SUV: Calibrated for Toyota’s latest Hybrid Synergy Drive system, supporting strong electric assist for heavy loads, smooth acceleration, and efficient regenerative braking.

Enhanced Dual-Fan Air Cooling: Active forced air cooling with dual fans and temperature sensors, maintaining optimal battery temperature (-25°C to 60°C) during long drives and high-load conditions.

Rugged Modular Design: 40 series-connected 7.2V modules (forming a 288V system) with reinforced housing, offering superior vibration resistance for highway, suburban, and light off-road driving.

OEM-Level Safety Protection: Built-in overcharge, over-discharge, over-current, short-circuit, and over-temperature protection, compliant with Toyota’s strict automotive safety standards for large SUVs.

Seamless BMS Integration: Perfectly matched to the Grand Highlander’s original BMS and hybrid ECU, ensuring accurate battery monitoring and optimal performance.

Plug-and-Play Installation: Direct replacement with OEM-matched mounting points, connectors, and wiring harnesses—no drilling or modifications needed.

Long Cycle Life: ≥3,800 shallow charge-discharge cycles (≥80% capacity retention), adapting to the Grand Highlander’s hybrid working mode for daily family use.

Maintenance-Free Design: Sealed, leak-proof construction with no need for electrolyte refilling or water top-ups, ideal for long-term full-size SUV ownership.

3. Specifications

Battery Type: Nickel-Metal Hydride (Ni-MH) Hybrid Traction Battery

Fitment: Toyota Grand Highlander (2023, 2024, 2025) | XU80 Series | Hybrid Trims (FWD & AWD)

Nominal Voltage: 288V (40 modules × 7.2V, series connection)

Cell Configuration: 240 prismatic Ni-MH cells (1.2V each)

Nominal Capacity: 7.0Ah (7000mAh)

Total Energy: ~2.02 kWh

Cooling System: Enhanced forced air cooling (dual fans, active thermal management)

Peak Discharge Rate: 38C (266A, 10-second pulse)

Continuous Discharge: 15C (105A, 60-second pulse)

Operating Voltage Range: 250V – 310V

Cycle Life: ≥3,800 cycles (80% DOD, capacity retention ≥80%)

Self-Discharge Rate: ≤2.8% per month (at 25°C)

Operating Temperature: -25°C to 60°C (optimal: 15–35°C)

Protection Functions: Overcharge, over-discharge, over-current, short-circuit, over-temperature

Dimensions (L×W×H): ~750mm × 340mm × 120mm (OEM-matched)

Approximate Weight: ~53 kg

Connector Type: OEM-compatible high-voltage connectors (waterproof design)

Warranty: 3 years / 100,000 km (capacity decay ≤20% within warranty)

Compliance: ISO 9001, IEC 61951-2, Toyota OEM quality standards, RoHS