Hybrid Battery Test

Li-ion

Honda Accord Plug-In Hybrid Battery (6.7 kWh Li-ion)

The Honda Accord Plug-In Hybrid Battery (6.7 kWh Li-ion) is the high voltage battery in the Honda Accord Plug-In Hybrid (2014).

At a Glance

  • Li-ion chemistry
  • 320 volts nominal
  • 2 modules
  • forced air cooled

Specifications

ChemistryLi-ion
Cell makerBlue Energy (GS Yuasa/Honda JV)
Nominal voltage320 V
Modules2
Module voltage160 V
Energy6.7 kWh
Coolingforced air (in IPU)
Locationbehind the rear seat

Cars That Use It

  • Honda Accord Plug-In Hybrid 2014 sold at select California and New York dealers Run the checklist

What Goes Wrong

Reported failures, each from a source listed below, as of October 7, 2026.

  • Owner complaints NHTSA lists under the Hybrid Propulsion System component for the Honda Accord Plug In Hybrid, by model year: 2014: 3. These are all hybrid system complaints, owner reported and unverified, not only battery faults, as of 2026-10-07.

Warranty

Honda's 2014 Accord Plug-In Hybrid emissions warranty parts list (APL 48366) lists the hybrid battery assembly at 8 years/100,000 miles in all states and 10 years/150,000 miles in California, Connecticut, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont and Oregon. (owners.honda.com: APL48366.pdf, 2026-10-07)

How battery warranties work.

Get This Pack Tested

Do not open it yourself. The pack can hurt you with the car switched off.

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How to test a hybrid battery safely

Sources

  1. techinfo.honda.com: ACI49204.pdf
  2. hondanews.com: 2014-honda-accord-hybrid-sedan-powertrain?query=earth+dreams
  3. autotechinsight.spglobal.com: gs-yuasa-subsidiary-blue-energy-supplies-lithium-ion-batteri
  4. owners.honda.com: APL48366.pdf
  5. NHTSA complaints, 2014 Honda Accord+Plug+In+Hybrid

Last updated October 7, 2026. Failure and recall notes are as of that date. Spotted a mistake, or speaking for a maker? Report an error.

Hybrid Battery Test is independent. It is not affiliated with, sponsored by or endorsed by Blue Energy (GS Yuasa/Honda JV), Honda. Names and part numbers are used only to identify the vehicle and the part.