The non-hybrid 2020 Accord uses a conventional 12-volt lead-acid battery to start the engine and run accessories, while the Accord Hybrid relies on a high-voltage lithium-ion battery pack as part of its hybrid propulsion system.
In this article, we break down what battery types you’ll find under the hood (or under the rear seat) depending on the powertrain, where they’re located, and what owners should know about maintenance and replacement.
Gasoline-powered Accord: standard 12-volt battery
Key facts about the gasoline model’s battery setup:
- Battery type: 12-volt lead-acid battery (most are sealed or maintenance-free; some trims may use AGM technology).
- Purpose: Provides starting power for the engine and runs the car’s accessory systems (lights, radio, ECU) when the engine is off or idling.
- Location: Typically located under the hood on the driver’s side.
- Replacement/maintenance: Commonly replaced every 3–5 years depending on climate and use; keep terminals clean and free of corrosion.
- Care tips: Periodically check for parasitic drains, ensure the charging system is functioning, and avoid deep discharges.
In ordinary driving, this battery operates independently of the vehicle’s hybrid system and is the standard setup for most gas-powered Accords.
Accord Hybrid: high-voltage battery pack
Key facts about the hybrid’s high-voltage battery:
- Battery type: High-voltage lithium-ion battery pack used by the hybrid propulsion system.
- Purpose: Stores energy for electric motors and assists the gasoline engine to improve fuel efficiency and smooth operation.
- Location: Pack is typically located under the rear seat or in the trunk/floor area, depending on the model.
- Replacement/maintenance: Not typically user-serviceable; managed by the hybrid system with service performed by authorized technicians or dealerships.
- Safety note: High-voltage systems require professional handling; the 12-volt battery remains separate and handles standard vehicle electronics.
Compared with the standard model, the hybrid’s battery pack is designed to work in concert with electric motors and the engine, rather than solely powering accessories.
Summary
The 2020 Honda Accord offers two battery configurations based on powertrain: a 12-volt lead-acid battery for gasoline models, and a high-voltage lithium-ion battery pack for the Accord Hybrid. Each serves a distinct role—starting and electrical power for the gas version, and energy storage for the hybrid propulsion system. If you’re unsure which system your car uses, check the model badge or owner's manual, or consult a Honda dealer.
How long should a 2020 Honda Accord battery last?
between 3 to 5 years
Your 2020 Honda Accord battery will typically last between 3 to 5 years, but that can vary heavily depending on weather conditions battery size, type of battery, and driving habits. Even still, just because your battery isn't completely dead, doesn't mean it's operating at optimal levels.
Is the Honda battery AGM or standard?
Types of Batteries for Honda Vehicles
Honda vehicles typically require either lead-acid or AGM (Absorbent Glass Mat) batteries.
What type of car battery does a Honda Accord take?
The best type of car battery for a Honda Accord is typically a Group 35 battery with a high cold cranking amp (CCA) rating to ensure reliable starting power. Opting for a reputable brand like Optima or ACDelco can provide durability and optimal performance.
How do I know my car battery type?
While you could grab a ruler and attempt to measure the exact width and height of your current car battery, pop the hood and simply look for "Group Size" printed on the label of the battery or check your owner's manual.