Honda / Blue Energy Co. (Honda-GS Yuasa JV)

Honda i-MMD Gen3 Hybrid Pack

Lithium-ion (NCM) cells from Blue Energy / Panasonic · 1.4 kWh total (0.9 kWh usable) · used in 2 model variants.

Honda i-MMD Gen3 Hybrid Pack

Lithium-ion (NCM) · Blue Energy / Panasonic · Compact pack under rear seat, air-cooled

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About the pack

Capacity

0.9 kWh

useable · 1.4 total

Service life

8 yr

100k mi typical

Warranty floor

—

see OEM warranty book

Pack overview

ChemistryLithium-ion (NCM)

Cell supplierBlue Energy / Panasonic

Cell formatPrismatic

Voltage (nominal)220 V

CoolingAir (cabin-fed)

ArchitectureCompact pack under rear seat, air-cooled

Warranty8 yr / 100k mi

Known issues

Low

Software-related hybrid system warnings on early 2018-2019 Accord Hybrid; resolved via dealer reflash. Hardware itself has been reliable.

Low

Cabin air-cooled design is sensitive to blocked rear-seat vents (cargo crammed against the inlet). Honda service literature notes this for 2018-2022 Accord and CR-V Hybrid.

Low

Failure rates through 100,000 miles are low; Honda hybrid replacement cost is similar to Toyota ($2,500-$4,000 typical out of 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.

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

Honda Accord

2018-2022 · Hybrid trim

33MPGe

Full reliability page →

Honda CR-V

2017-2022 · Hybrid trim (US market 2020-2022)

38MPGe

Full reliability page →

Battery-Related NHTSA Recalls

Recalls affecting battery, charging, electric propulsion, or thermal-event systems on vehicles using this pack. Recalls are deduplicated across model variants; affected vehicles are listed for each campaign.

20V798000 17/12/2020 ELECTRICAL SYSTEM:PROPULSION SYSTEM:DC/DC CONVERTER

Honda (American Honda Motor Co.) is recalling certain 2020 CR-V Hybrid, Accord Hybrid, and 2020-2021 Insight vehicles. The DC-DC converter may shut down and prevent the 12-volt battery from recharging, possibly resulting in a loss of drive power.

Consequence: A loss of drive power can increase the risk of a crash.

Affects: Honda Accord 2018-2022; Honda CR-V 2017-2022

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

Pack family

Honda i-MMD Gen3 Hybrid Pack is part of the honda-immd family. Related packs:

Honda i-MMD Gen4 Hybrid Pack · Lithium-ion (NCM, refined cell formulation) · 1.5 kWh

Frequently Asked Questions

What chemistry is the Honda i-MMD Gen3 Hybrid Pack?

The Honda i-MMD Gen3 Hybrid Pack uses Lithium-ion (NCM) cells supplied by Blue Energy / Panasonic. Cell format: Prismatic. Pack architecture: Compact pack under rear seat, air-cooled.

What is the warranty on this pack?

8 years or 100,000 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 Honda i-MMD Gen3 Hybrid Pack battery warranty runs 8 years / 100,000 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 Honda i-MMD Gen3 Hybrid Pack?

Honda Accord 2018-2022 (Hybrid trim); Honda CR-V 2017-2022 (Hybrid trim (US market 2020-2022)).