This replacement battery fits:
• Lexus GS450h (GWL10 chassis)
• Model Years Covered: 2012 – 2020
• Hybrid system: Lexus Hybrid Drive

This is a direct, plug-and-play replacement. No vehicle modification required.
Warranty includes authorised installer fitment coverage. This listing does NOT apply
to the earlier 2006–2011 GWS191 generation.

The Lexus GS450h GWL10 utilizes a high-performance hybrid system integrating:
• 3.5 L V6 2GR-FXE Atkinson-cycle engine
• High-Voltage NiMH hybrid battery (~288V)
• Hybrid Control ECU
• Power Split Device
• E-CVT transmission
• Regenerative braking system

The high-voltage battery supplies power for electric driving assist and optimal
engine-load sharing. As the battery degrades, internal resistance increases and
module imbalances develop, leading to weakened electric assist and decreased fuel efficiency.

Watch for these common indicators of degradation:
• “Check Hybrid System” warning
• Frequent engine engagement
• Rapid battery charge swings (purple to green bars)
• Decreased fuel economy
• Sluggish hybrid response
• Noisy battery cooling fan

These symptoms often correlate with diagnostic codes such as P0A80.

Replacement costs depend on:
• Brand-new NiMH battery pack condition
• Certified installation labour
• Warranty length and coverage
• Core exchange requirements

Hybrid Fix Garage provides:
• Premium new NiMH batteries
• Transparent pricing with no hidden fees
• 3-year / 200,000 km warranty
• Professional hybrid installation support

Hybrid Fix Garage (New):
Brand-new NiMH cells with high performance and a 3-year / 200,000 km warranty.
Competitive pricing with professional fitment included.

Third-Party Repaired:
Uses mixed used or repaired cells with a shorter 6–24 month warranty.
Medium performance and lower cost, but higher risk of imbalance.

Dealership OEM:
Factory-fresh OEM components with high reliability. Typically the most expensive
option due to dealership markups.

Battery Chemistry: Nickel-Metal Hydride (NiMH)
Nominal Voltage: ~288 V
Compatibility: Lexus GS450h 2012–2020 (GWL10)
Chassis Code: GWL10
Condition: Brand-New NiMH Replacement
Warranty: 3-Year / 200,000 km
Installation Support: Included
Recycling Program: Eco-responsible old battery return

All packs undergo:
• Rigorous load testing
• Voltage and cell balancing
• Diagnostic verification
• Thermal integrity inspection

Typical Lifespan: 8–15 years or more.

Factors impacting longevity include hot ambient temperatures, stop-start urban
driving, high mileage, and poor cooling ventilation. Replacing the battery restores
electric motor assist and fuel economy stability.

High-voltage systems should only be serviced by specialists. Our process includes:
• Safe high-voltage battery removal
• Battery cooling system inspection
• Hybrid ECU calibration support
• Post-installation diagnostics
• Responsible old battery recycling

Typical installation time: 2–4 hours.

• Hybrid System Specialists
• High-Voltage Safety Expertise
• Transparent Price and Warranty
• Dedicated Support Team
• Professional Installation Network

Is this battery brand-new or repaired?
It is a brand-new NiMH hybrid battery pack built to OEM fitment standards.

Does it fit all GS450h 2012–2020 models?
Yes, all GWL10 chassis Lexus GS450h models are supported.

How long does installation take?
Usually 2–4 hours depending on vehicle condition.

What warranty is included?
Every battery comes with a 3-year / 200,000 km warranty.