The Best Battery for a Honda Accord (by Year & Engine)
For most four-cylinder Accords (2003–2017) the right battery is a quality Group 51R in AGM if you want the longest life — our top pick is an AGM 51R around 590–640 CCA. V6 Accords of that era take Group 24F; 2018-and-newer turbo models take H5 (47) or H6 (48). Match the group size first, then choose AGM over flooded for heat, start/stop, and longevity.
Choose by fitment first, then chemistry, CCA, warranty, and price.
Confirm against the label on your current battery before buying — trim, engine, and start/stop change fitment. The R suffix means reversed terminals; a 51 and a 51R are not interchangeable. A great battery in the wrong group size is the wrong battery.
The one rule that matters: a battery only fits if the group size matches your car. Get that from the battery size chart or the label on your old battery, then use the picks below. A great battery in the wrong group size is the wrong battery.
AGM or flooded, and how much CCA?
Flooded = the cheapest, standard wet-cell. Fine for a basic gas Accord in a mild climate.
AGM = sealed, longer-lasting, far better for heat, short trips, and start/stop systems. If your Accord shipped with AGM (start/stop, Touring, Hybrid, many 2018+), you must replace with AGM — a flooded battery in an AGM charging system fails early. For everyone else, AGM is the upgrade worth paying for.
CCA (cold cranking amps): match or beat the factory rating (typical: 51R ≈ 435–590, 24F ≈ 700, H5 ≈ 650, H6 ≈ 760). More CCA never hurts; less means hard winter starts. Don’t change group size to chase CCA.
How we pick
We choose by correct fitment first, then cranking power, warranty, and value — never by commission. We name the group size and chemistry for every pick, point to a cheaper option when it’s the smarter buy, and tell you to confirm fitment against your own battery’s label. See our affiliate disclosure.
After you buy
Installing it yourself? Follow the battery replacement how-to — including a memory saver so you keep your radio code and presets.
These are for the 51R four-cylinder fitment, the highest-volume Accord battery. V6 (24F) and 2018+ (H5/H6) owners: use the buy-by-size table below. Prices are approximate — always check the current price before buying.
Best overall
ACDelco Gold (Professional) 51R AGM
Group 51R · AGM
~600 CCAAGM~36-mo warranty
+Long AGM life — handles start/stop and heat; trusted OE-grade brand
+Correct reversed-terminal 51R fit, no modifications
−Costs more than a flooded battery (~$180–$220 approx.)
For most four-cylinder Accords (2003–2017) it's a quality Group 51R AGM — long life, handles heat and start/stop. V6 models take Group 24F and 2018-and-newer turbos take H5 (47) or H6 (48). Match your group size first, then pick AGM over flooded for the longest life.
Should I put an AGM battery in my Honda Accord?
If your Accord came with AGM (start/stop, Touring, Hybrid, many 2018+), yes — AGM is required. For older gas Accords, AGM is an optional upgrade that lasts longer and tolerates heat and short trips better than flooded. Just keep the same group size your car requires.
What group size battery does a Honda Accord need?
Four-cylinder Accords from 2003–2017 use Group 51R; V6s of that era use 24F; 2018-and-newer turbo models use H5 (47) or H6 (48). Confirm the exact group on the label of your current battery before buying — it's what physically fits your tray and terminals.
Is a more expensive battery worth it for a Honda Accord?
Often, yes — an AGM battery costs more up front but typically lasts longer and handles heat and start/stop far better, so the cost-per-year can be lower. For a basic gas Accord in a mild climate, a good flooded battery in the correct group size is still a solid, cheaper choice.
How many CCA does a Honda Accord battery need?
Match or exceed the factory rating: roughly 435–590 CCA for 51R, ~700 for 24F, ~650 for H5, and ~760 for H6. Higher CCA never hurts; too little means hard cold starts. Never change the group size just to get more CCA — fit comes first.
