What kind of battery is in the Lexus NX300h?
The Lexus NX300h uses a nickel-metal hydride (NiMH) high‑voltage battery as part of its self‑charging hybrid system. It is not a plug‑in battery, and the vehicle charges and uses this pack automatically through driving and regenerative braking.
Understanding the NX300h's hybrid battery
The NX300h relies on a NiMH high‑voltage battery to store electrical energy that assists the gasoline engine and the electric motor. Energy is captured during braking and engine operation and then delivered to the electric motor when extra power is needed. The system is designed to operate automatically, without requiring any plug‑in charging.
Where is the battery located?
In typical NX300h configurations, the hybrid battery pack is mounted in the rear floor area, beneath the rear seat or cargo floor, integrated with the hybrid drivetrain's components. This placement helps maintain interior space and a low center of gravity.
Specifications and lifespan
Nickel-metal hydride packs in Lexus/Triumphy hybrids usually have about 1 kWh of usable energy and operate at a nominal voltage in the hundreds of volts range (roughly around 200 V). The system also uses a conventional 12‑volt auxiliary battery to power standard car electronics. The battery is designed to last for many years as part of the vehicle’s hybrid system, with replacement handled by Lexus service if needed.
Key facts about the NX300h battery
Below are essential points about the NX300h's battery for quick reference:
- Type: Nickel-metal hydride (NiMH) high‑voltage battery used by the hybrid system.
- Voltage and capacity: nominally around 200 volts with roughly 1 kWh of usable energy.
- Location: installed in the rear floor area, under the rear seats or cargo floor.
- Plug-in status: not designed to be plugged in for charging.
- Maintenance: cooling and electrical connections should be checked as part of regular service; a separate 12‑volt battery powers standard accessories.
These points summarize how the NX300h's battery functions within the hybrid system and what owners can expect in terms of charging, placement, and upkeep.
Why this matters for ownership
The battery’s performance directly affects fuel efficiency and acceleration in the NX300h. The NiMH technology is chosen for durability and cost-effectiveness in a non‑plug‑in hybrid, balancing power delivery with reliability. If maintenance or replacement is ever needed, Lexus service will provide a compatible NiMH pack designed specifically for the NX300h to preserve system performance.
Summary
The Lexus NX300h is powered by a nickel-metal hydride high‑voltage battery as part of its self‑charging hybrid system. It is not a plug‑in battery and is charged automatically through the vehicle’s drivetrain and regenerative braking. The pack is typically around 1 kWh in usable capacity, operates at a nominal voltage near 200 V, and is located in the rear floor area. A separate 12‑volt battery handles standard electrical systems. For precise specifications by year and market, consult the owner’s manual or a Lexus service specialist.
