Toyota / Lexus (e-TNGA platform)

Toyota bZ4X FWD / Lexus RZ 450e pack (71.4 kWh)

Lithium-ion cells from Prime Planet Energy & Solutions (PPES) · 71.4 kWh · used in 2 model variants.

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Pack reference

Lithium-ion · Prime Planet Energy & Solutions (PPES) · 355-volt, 201 Ah floor pack with 96 cells, liquid-cooled

About the pack

Capacity

71.4 kWh

as published

Fast charge

150 kW

peak

Warranty floor

70%

capacity floor at 8 yr / 100k mi

Pack overview

ChemistryLithium-ion

Cell supplierPrime Planet Energy & Solutions (PPES)

Cell formatNot published

Voltage (nominal)355 V

CoolingLiquid

Architecture355-volt, 201 Ah floor pack with 96 cells, liquid-cooled

Warranty 8 yr / 100k mi

Capacity floor70%

Known issues

Low

Wheel hub bolts could loosen on 2023 bZ4X and Solterra and let a wheel detach (NHTSA 22V-444, June 2022). Toyota offered U.S. bZ4X owners a buyback while the remedy was pending, and Subaru filed a second hub-bolt recall on the 2023 Solterra (23V-064). The battery was not involved.

NHTSA recall

Low

Front-drive and all-wheel-drive cars use different packs, and Lexus assigns them the other way round from Toyota. The front-drive bZ4X and the all-wheel-drive RZ 450e carry this 71.4 kWh pack; the all-wheel-drive bZ4X and the front-drive RZ 300e carry the 72.8 kWh pack. Toyota lists up to 150 kW DC for the front-drive bZ4X, and EPA range is 252 miles for the 2023 front-drive car against 228 with all-wheel drive.

Manufacturer spec

Low

Lexus describes the RZ 450e's 71.4 kWh battery as developed by Prime Planet Energy & Solutions, the Toyota and Panasonic joint venture. Its spec sheets give 96 cells at 355 volts and about 30 minutes to 80 percent on a 150 kW charger, measured from the low-battery warning. The on-board charger is 6.6 kW on the 2023 RZ and 7 kW for 2024 and 2025.

Manufacturer

Low

Toyota's warranty covers the traction battery for 8 years or 100,000 miles and treats capacity below 70% of original as a defect within that term.

OEM warranty

Low

Lexus covers the RZ's traction battery for 8 years or 100,000 miles and treats capacity below 70% of original as a defect within that term.

OEM warranty

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: 8 yr / 100k 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 bZ4X

2023-2025 · Front-wheel drive (XLE / Limited)

222-252 miEPA range

102-119MPGe

Full reliability page →

Lexus RZ

2023-2025 · RZ 450e (all-wheel drive)

196-266 miEPA range

95-125MPGe

Full reliability page →

Pack family

Toyota bZ4X FWD / Lexus RZ 450e pack (71.4 kWh) is part of the toyota-etnga family. Related packs:

Toyota / Subaru e-TNGA 74.7 kWh (2026+) · Lithium-ion · 74.7 kWh
Toyota bZ4X AWD / Subaru Solterra / Lexus RZ 300e pack (72.8 kWh) · Lithium-ion · 72.8 kWh

Frequently Asked Questions

What chemistry is the Toyota bZ4X FWD / Lexus RZ 450e pack (71.4 kWh)?

The Toyota bZ4X FWD / Lexus RZ 450e pack (71.4 kWh) uses Lithium-ion chemistry. Cells are supplied by Prime Planet Energy & Solutions (PPES). Cell format has not been disclosed. Pack architecture: 355-volt, 201 Ah floor pack with 96 cells, liquid-cooled.

What is the warranty on this pack?

8 years or 100,000 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 bZ4X FWD / Lexus RZ 450e pack (71.4 kWh) battery warranty runs 8 years / 100,000 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 bZ4X FWD / Lexus RZ 450e pack (71.4 kWh)?

Toyota bZ4X 2023-2025 (Front-wheel drive (XLE / Limited)); Lexus RZ 2023-2025 (RZ 450e (all-wheel drive)).