Toyota / Primearth EV Energy

Toyota RAV4 Prime PHEV Pack (18.1 kWh)

Lithium-ion (NCM) cells from Primearth EV Energy / Panasonic · 18.1 kWh total (14.5 kWh usable) · used in 1 model variant.

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Pack reference

Lithium-ion (NCM) · Primearth EV Energy / Panasonic · Under-floor pack, liquid-cooled

About the pack

Capacity

14.5 kWh

usable · 18.1 total

EV-only range

—

limited data

Warranty floor

70%

capacity floor at 10 yr / 150k mi

Pack overview

ChemistryLithium-ion (NCM)

Cell supplierPrimearth EV Energy / Panasonic

Cell formatPrismatic Li-ion

Voltage (nominal)355 V

CoolingLiquid (glycol)

ArchitectureUnder-floor pack, liquid-cooled

Warranty 10 yr / 150k mi

Capacity floor70%

Known issues

Medium

NHTSA 23V-041 (February 2023) covers certain 2021 RAV4 Prime vehicles. In cold weather in EV Mode, the hybrid control ECU software can shut the hybrid system down when the accelerator is pressed rapidly, causing a stall. Dealers update the HEV ECU software free of charge.

NHTSA recall

High

NHTSA 23V-478 (July 2023) covers certain 2021-2022 RAV4 Prime and 2022 Lexus NX 450h+ plug-in hybrids. A module inside the DC-DC converter may have been damaged in production and can short-circuit and overheat, which is a fire risk. Owners are told not to charge when the air temperature is below 41°F until dealers replace the converter, free of charge.

NHTSA recall

How this pack ages (industry context)

Industry fleet aggregates: 2.3% average annual capacity loss across 22,700 EVs / 21 models (Geotab, 2026), and 95% range retention at 5 years on average across 30,000+ vehicles (Recurrent, 2026).

OEM warranty floor on this pack: 10 yr / 150k mi to 70% capacity.

Public per-pack degradation curves are not available for most models. Individual results vary materially with climate, charging behavior, and DC fast-charge frequency.

Vehicles using this pack

Toyota RAV4

2019-2025 · RAV4 Prime / RAV4 Plug-in Hybrid

42 miEPA electric range

94MPGe

Full reliability page →

Battery-Related NHTSA Recalls

Recalls affecting battery, charging, electric propulsion, or thermal-event systems on vehicles using this pack, as of the last complaint-data run. Each campaign names the model generation it was filed against; the summary gives the model years covered.

23V478000 Jul 12, 2023 ELECTRICAL SYSTEM:PROPULSION SYSTEM:DC/DC CONVERTER

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2021-2022 RAV4 Prime and 2022 Lexus NX450h+ plug-in hybrid electric (PHEV) vehicles. The electric current rectifying module contained within the DC-DC converter may have been damaged during production, which can result in an electrical short-circuit.

Consequence: A short circuit can cause the DC-DC converter to overheat, increasing the risk of a vehicle fire.

Filed against: Toyota RAV4 2019-2025

23V041000 Feb 2, 2023 ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU)

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2021 RAV4 Prime Plug-In Hybrid vehicles. During certain cold weather driving conditions, while driving in EV Mode, the hybrid vehicle control engine control unit (HEV ECU) software may cause the hybrid system to shut down if the accelerator is rapidly pressed to further accelerate the vehicle, resulting in a stall.

Consequence: An engine stall increases the risk of a crash.

Filed against: Toyota RAV4 2019-2025

For TWD editorial coverage of major recall campaigns, see /recalls/.

Frequently Asked Questions

What chemistry is the Toyota RAV4 Prime PHEV Pack (18.1 kWh)?

The Toyota RAV4 Prime PHEV Pack (18.1 kWh) uses Lithium-ion (NCM) chemistry. Cells are supplied by Primearth EV Energy / Panasonic. Cell format: Prismatic Li-ion. Pack architecture: Under-floor pack, liquid-cooled.

What is the warranty on this pack?

10 years or 150,000 miles, with capacity coverage to 70% of original. Specific terms vary by year and trim; check the manufacturer's warranty booklet for the exact vehicle.

How much does this pack degrade over time?

Industry-wide fleet aggregates show roughly 2.3% average annual capacity loss across 22,700 EVs (Geotab, 2026), with about 95% range retention at five years on average across Recurrent's 30,000+ vehicle fleet (2026). Public per-pack degradation curves are not available for most models. The Toyota RAV4 Prime PHEV Pack (18.1 kWh) battery warranty runs 10 years / 150,000 miles to a 70% capacity floor, which is the OEM-guaranteed minimum within that period. Individual results vary with climate, charging habits, and DC fast-charging frequency.

Which vehicles use the Toyota RAV4 Prime PHEV Pack (18.1 kWh)?

Toyota RAV4 2019-2025 (RAV4 Prime / RAV4 Plug-in Hybrid).