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Buyer guide

The Best Battery for a Honda Accord (by Year & Engine)

Honda's parts catalog lists a Group 51R for 2003–2017 four-cylinder Accords, and a quality 51R in AGM is our pick if you want the longest life. 2008–2017 V6s take a 24F, the 1.5T an LN2/H5, the 2018–2022 2.0T an H6, and the hybrid a Group 51 — not 51R. Match the group size first, then the type printed on your current battery.

Three generic 12-volt car batteries arranged on a garage workbench
Choose by fitment first, then chemistry, CCA, warranty, and price.

Battery finder

Year
2008-2012
Engine
4-cyl 2.4L
Year + engine reference
8th gen
Group
51R
CCA
Not listed
Type
Not listed

Select your Accord year and engine. Each size is the replacement battery Honda's parts catalog lists for it (part numbers in the chart below); confirm against the label on your battery before buying.

Honda lists two batteries for some 2008-2012 four-cylinder trims: this 51R and a 70D23L-MF. The label on your current battery tells you which one your car has.

Shop Group 51R ▸
See recommended batteries
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 the battery in your car says AGM, replace it with AGM. Newer Accords aren’t all AGM, though: Honda’s parts catalog lists an EFB (enhanced flooded) H5 for the 2021–2025 1.5T and a flooded H6 for the 2018–2022 2.0T.
  • CCA (cold cranking amps): match or beat the rating on your current battery. Honda’s part name only states it for the V6 24F (630 CCA). 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

Top picks for the Group 51R fitment (2003–2017)

These are for the 51R four-cylinder fitment, the highest-volume Accord battery. V6 (24F), 1.5T (LN2/H5), 2.0T (H6) and hybrid (Group 51) 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
~450–500 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.)
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Best value

Flooded Group 51R (Duracell, Interstate & similar)

Group 51R · Flooded
~500–590 CCAFlooded~$130–$160
+Lowest cost, the correct OE-style fit; widely available
+Plenty for a basic gas Accord in a mild climate
−Shorter life in hot climates; not for start/stop trims
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Deep-cycle pick

Optima D51R YellowTop AGM

Group 51R · AGM
~450 CCAAGM spiral cellDeep-cycle
+Vibration-proof; great for accessories/audio and deep cycling
−Premium price (~$230–$260 approx.); overkill for a stock commuter
−Check tray clearance and terminal layout first
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Editor ratings

ACDelco Gold (Professional) 51R AGMBest overall for 2003–2017 four-cylinder Accords
4.6/5

OE-grade AGM in the correct reversed-terminal 51R case, around 450–500 CCA depending on the listing, with roughly a 36-month warranty. It is the pick that asks the fewest questions: right fitment, enough cranking power, and the heat and start/stop tolerance that flooded batteries give up. The cost is the trade — it sits well above a flooded 51R.

Flooded Group 51R (Duracell, Interstate & similar)Best value for a basic gas Accord in a mild climate
4.0/5

The correct OE-style 51R fit at the lowest price, in the 500–590 CCA range and widely stocked. For a non-start/stop Accord that does not bake in summer heat, it covers the job. It gives up service life in hot climates and is not the right choice for start/stop trims.

Optima D51R YellowTop AGMAccessory-heavy or deep-cycling builds, not stock commuters
3.8/5

A spiral-cell AGM built for vibration resistance and repeated deep discharge, which is why it suits audio and accessory loads. Note the trade clearly: its rating is around 450 CCA, below the other two 51R options, and it carries a premium price. Check tray clearance and terminal layout before ordering.

Scores weigh fitment confidence for the Accord's group sizes, expected service life in heat and start/stop duty, warranty length and price — read off manufacturers' published specs and this site's fitment research, not a test bench.

Honda Accord battery by year and engine (Honda genuine-parts catalog)
Years Engine Group CCA Type Honda part no. Shop
2003-2007 4-cyl 2.4L 51R Not listed Not listed 31500-SR1-100M
“Battery (51R/500Amp85)” 		Shop ▸
2003-2007 V6 3.0L 70D23L-MF Not listed Not listed 31500-SL5-100M
“Battery Assembly (70D23L-MF)” 		Shop ▸
2008-2012 4-cyl 2.4L 51R Not listed Not listed 31500-SR1-100M
“Battery (51R/500Amp85)” 		Shop ▸
2008-2012 4-cyl 2.4L (70D23L option) 70D23L-MF Not listed Not listed 31500-SL5-100M
“Battery Assembly (70D23L-MF)” 		Shop ▸
2008-2012 V6 3.5L 24F 630 Not listed 31500-TK8-A2100M
“Battery (Gr24F/630Cca)” 		Shop ▸
2013-2017 4-cyl 2.4L 51R Not listed Not listed 31500-SR1-100M
“Battery (51R/500Amp85)” 		Shop ▸
2013-2017 V6 3.5L 24F 630 Not listed 31500-TK8-A2100M
“Battery (Gr24F/630Cca)” 		Shop ▸
2014-2015, 2017 Hybrid 2.0L (12V battery) 51 Not listed Not listed 31500-SB2-100M
“Battery Assembly (51/500Amp85)” 		Shop ▸
2018-2020 1.5T LN2 Not listed Not listed 31500-TGG-100M
“Battery (Ln2)” 		Shop ▸
2021-2022 1.5T H5 Not listed EFB 31500-TLA-EFB100M
“BATTERY (H5EFB)” 		Shop ▸
2018-2022 2.0T H6 Not listed Flooded 31500-TZ3-100M
“Battery (H6/Fla)” 		Shop ▸
2018-2022 Hybrid 2.0L (12V battery) 51 Not listed Not listed 31500-SB2-100M
“Battery Assembly (51/500Amp85)” 		Shop ▸
2023-2025 1.5T H5 Not listed EFB 31500-TLA-EFB100M
“BATTERY (H5EFB)” 		Shop ▸
2023-2025 Hybrid 2.0L (12V battery) 51 Not listed Not listed 31500-SB2-100M
“Battery Assembly (51/500Amp85)” 		Shop ▸

Source: Honda's genuine-parts catalog — the replacement battery Honda lists for each year and engine, with Honda's own part name. Honda's owner's manuals do not print the battery group or CCA. "Not listed" means Honda's part name does not state it, so we don't either. Honda's current replacement part can differ from the battery fitted at the factory, so the label on the battery in your car is the final check.

Frequently asked questions

What is the best battery for a Honda Accord?
For 2003–2017 four-cylinder Accords it's a quality Group 51R, ideally AGM for the longest life. For the other engines, Honda's parts catalog lists a 24F for 2008–2017 V6s, LN2/H5 for the 1.5T, H6 for the 2018–2022 2.0T and Group 51 for the hybrid. Match your group size first.
Should I put an AGM battery in my Honda Accord?
If the battery in your car says AGM, replace it with AGM. Newer Accords are not automatically AGM cars: Honda's parts catalog lists an EFB (enhanced flooded) H5 for the 2021–2025 1.5T and a flooded H6 for the 2018–2022 2.0T. On older gas Accords, AGM is an optional upgrade that tolerates heat and short trips better than flooded. Keep the same group size either way.
What group size battery does a Honda Accord need?
Per Honda's parts catalog: Group 51R for 2003–2017 four-cylinder Accords, 24F for 2008–2017 V6s, a 70D23L for 2003–2007 V6s, LN2/H5 for the 1.5T, H6 for the 2018–2022 2.0T and Group 51 for the hybrid. 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 rating on your current battery. Honda's part name states a CCA only for the V6 24F (630 CCA); for other Accords, the number on the old battery's label is your target. Higher CCA never hurts; too little means hard cold starts. Never change the group size just to get more CCA — fit comes first.

Sources