Li-ion
Honda Accord Hybrid 2018-2022 Battery (259V Li-ion, under rear seat)
The Honda Accord Hybrid 2018-2022 Battery (259V Li-ion, under rear seat) is the high voltage battery in the Honda Accord Hybrid (2018-2022).
At a Glance
- Li-ion chemistry
- 259.2 volts nominal
- 2 modules
- forced air; fan pulls cabin air from the interior cooled
Specifications
| Chemistry | Li-ion |
|---|---|
| Nominal voltage | 259.2 V |
| Modules | 2 |
| Module voltage | 129.6 V |
| Cooling | forced air; fan pulls cabin air from the interior |
| Location | under the rear seats (IPU under rear floor/seat base) |
Cars That Use It
- Honda Accord Hybrid 2018-2022 third-gen two-motor Run the checklist
Same Electrical Spec
These packs share this one's chemistry, voltage and module count. That is a spec match only. It does not mean the parts fit each other, so check with a technician.
Recalls
- 20V798000 2020 The DC-DC converter may shut down and stop recharging the 12 V battery, possibly causing a loss of drive power.
Check the exact car by VIN at nhtsa.gov/recalls.
Warranty
Honda's 2018 and 2022 Accord Hybrid emissions warranty parts lists list the hybrid battery assembly/module at 8 years/100,000 miles in all states and 10 years/150,000 miles in California and the other listed states (CT, DE, ME, MD, MA, NJ, NY, OR, PA, RI, VT, WA, plus Colorado in 2022); 2019-2021 lists were not opened. (owners.honda.com: 2018_Honda_Accord_Sedan_-_EWPL_-_APL12639_SIS_and_Accord_Hyb, 2026-10-07)
Get This Pack Tested
Do not open it yourself. The pack can hurt you with the car switched off.
Sources
- techinfo.honda.com: AEG07617.pdf
- hondanews.com: 2018-honda-accord-press-kit-powertrain?query=accord+hybrid&c
- hondanews.com: release-1503019bd8a757ea08267d7944378955-honda-two-motor-hyb
- owners.honda.com: 2018_Honda_Accord_Sedan_-_EWPL_-_APL12639_SIS_and_Accord_Hyb
- owners.honda.com: 2022_Accord_Sedan_KA_and_Hybrid_KA_EWPL_PL17559_and_PL17658_
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 Honda. Names and part numbers are used only to identify the vehicle and the part.