Reliability

Toyota

Toyota Prius Prime / Prius Plug-in Hybrid pack (13.6 kWh)

Lithium-ion cells · 13.6 kWh · used in 1 model variant.

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Pack reference

Lithium-ion · 13.6 kWh (51 Ah) pack under the rear seat, 284 lb
About the pack
Capacity
13.6 kWh
as published
EV-only range
—
limited data
Warranty floor
—
see OEM warranty book

Pack overview

ChemistryLithium-ion
Cell supplierNot published
Cell formatNot published
CoolingNot published
Architecture13.6 kWh (51 Ah) pack under the rear seat, 284 lb
Warranty 10 yr / 150k mi

Known issues

Low
Toyota lists a 13.6 kWh lithium-ion pack under the rear seat with a 3.5 kW on-board charger, good for a full charge in about 4 hours at 240 volts or 11 hours at 120. There is no DC fast charging.
Low
Toyota covers the hybrid battery for 10 years from first use or 150,000 miles and states no capacity percentage.

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.

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

Frequently Asked Questions

What chemistry is the Toyota Prius Prime / Prius Plug-in Hybrid pack (13.6 kWh)?

The Toyota Prius Prime / Prius Plug-in Hybrid pack (13.6 kWh) uses Lithium-ion chemistry. Toyota has not named a cell supplier for this pack. Cell format has not been disclosed. Pack architecture: 13.6 kWh (51 Ah) pack under the rear seat, 284 lb.

What is the warranty on this pack?

10 years or 150,000 miles. 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 Prius Prime / Prius Plug-in Hybrid pack (13.6 kWh) battery warranty runs 10 years / 150,000 miles, 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 Prius Prime / Prius Plug-in Hybrid pack (13.6 kWh)?

Toyota Prius 2023-2025 (Prius Prime (2023-2024); Prius Plug-in Hybrid (2025)).

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