2018–2022 Honda Accord Battery Size (BCI Group and CCA)

Which Honda Accord model years does this cover?

These battery specifications apply to every Honda Accord built from 2018 through 2022 — the 10th generation, mid-size sedan (fastback roofline; coupe discontinued). 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 2018–2022 Honda Accord

• 2018Generation launch: turbo-only lineup, LED low beams standard, V6 and coupe dropped
• 2021Facelift: revised front end, Sport SE trim, hybrid gains steering-wheel deceleration paddles; manual transmission dropped after 2020
• 2022Final year for the 2.0T and 10-speed in the Accord

What size battery does a 2018–2022 Honda Accord take?

BCI group 47 (H5/LN2), 1.5T; 48 (H6/LN3), 2.0T. 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 2018–2022 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 2018–2022 Honda Accord?

Engine bay, driver side.

Does a 2018–2022 Honda Accord need the battery registered after replacement?

The 10th gen switched to DIN-format batteries: 1.5T cars take an H5 (Group 47), 2.0T cars the longer H6 (Group 48). Factory units are EFB; AGM upgrades are popular and fine. An H6 fits many 1.5T trays as a capacity upgrade. Measure first.