2023–2025 11th generation
2023–2025 Honda Accord Battery Size (BCI Group and CCA)
The 2023–2025 Honda Accord uses a BCI group 47 (H5/LN2) battery. Fitment, replacement notes, and what to check before you buy.
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Quick answer
2023–2025 Honda Accord battery specifications
High confidence| Spec | Value |
|---|---|
| BCI group size | 47 (H5/LN2) |
| Battery type | EFB |
| AGM required | No |
| Location | Engine bay, driver side |
Both the 1.5T and the hybrid use the DIN H5 (Group 47) format; parts retailers list H5 EFB/AGM fitments for all 2023+ trims. AGM is a worthwhile upgrade for stop-start duty.
2.0L Hybrid (LFC i-MMD 4th-gen two-motor, 204 hp combined) battery
Check your manual| Spec | Value |
|---|---|
| BCI group size | 47 (H5/LN2) 12V, engine bay |
| Battery type | EFB |
| Location | Engine bay (high-voltage pack under the rear seat) |
12V battery is under the hood and boots the hybrid system only, no cranking load. EFB from the factory; AGM replacements are fine. A dead 12V means the car won't 'READY' even with a full hybrid pack, jump at the 12V terminals per the manual.
Which Honda Accord model years does this cover?
These battery specifications apply to every Honda Accord built from 2023 through 2025 — the 11th generation, mid-size sedan (hybrid-led lineup). Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.
What changed during the 2023–2025 Honda Accord
- 2023Generation launch: 1.5T on LX/EX only, all upper trims hybrid (204 hp); Google built-in on Touring
- 2025SE trim added; lineup otherwise carries over
2023–2025 Honda Accord battery: common questions
What size battery does a 2023–2025 Honda Accord take?
- BCI group 47 (H5/LN2). Group size is a physical dimension and terminal-position standard, so a battery from a different group may not clamp down or may put the terminals on the wrong side.
Does the 2023–2025 Honda Accord need an AGM battery?
- The factory battery is an EFB type. Match the type when you replace it.
Where is the battery on a 2023–2025 Honda Accord?
- Engine bay, driver side.
Does a 2023–2025 Honda Accord need the battery registered after replacement?
- Both the 1.5T and the hybrid use the DIN H5 (Group 47) format; parts retailers list H5 EFB/AGM fitments for all 2023+ trims. AGM is a worthwhile upgrade for stop-start duty.
Sources
- Goodyear fitment, 2024 Accord tire sizes by trim
- Honda News, 2023 Accord specifications & features
- College Hills Honda, 2023-2026 Accord maintenance parts (filters, 15400-PLM-A02)
- NHTSA recall 23V-782, seat belt pretensioner (2023-2024 Accord/HR-V)
- Wards Auto, Honda recalls ~257K Accord Hybrids for ICM software (25V-785)
- Honda News, 2023-2024 Accord and HR-V seat belt pretensioner recall
- Advance Auto Parts, 2023 Accord H5 battery fitments
- EngineOilDB, 2023/2024 Accord oil capacities (1.5T 3.7 qt, hybrid 4.2 qt)