The 2020 Nissan Altima relies on a conventional 12-volt lead-acid automotive battery to start the engine and power accessories; it does not use a high-voltage traction battery like a hybrid or electric vehicle.
In this article, we explain the battery type, its role in daily driving, and practical guidance on maintenance and replacement for this model year.
Battery type and specs
Key characteristics of the Altima’s 12-volt battery are listed below.
- Type: 12-volt automotive battery built with lead-acid chemistry
- Configuration: typically sealed and maintenance-free in modern Altima models
- Not a high-voltage battery: the Altima is gasoline-powered; there is no hybrid or electric drivetrain battery in 2020
- Location: mounted in the engine bay, toward the front of the vehicle
- Typical life and care: replacement commonly needed after 3–5 years depending on climate and usage
- Common indicators of a failing battery: slow engine crank, dim lights, frequent electrical glitches
Note: exact battery size (group size) and cold-cranking amps can vary by trim and production date. Check the owner’s manual or the battery label for the precise specification and replacement options.
Maintenance and replacement guidelines
To keep a 2020 Altima’s battery reliable, consider these routine practices and checks.
- Regularly inspect battery terminals for corrosion; clean with a battery brush and a baking soda solution if needed
- Ensure battery is securely mounted and terminals are tight to prevent vibration damage
- Test the resting voltage with a multimeter; a healthy 12-volt battery should read about 12.6 volts or higher when the car is off
- When the engine is running, the charging voltage should typically be in the 13.7–14.7-volt range as the alternator charges the battery
- Replace the battery if it fails a load test or reaches the end of its expected life (commonly 3–5 years, sooner in extreme heat or cold)
- Follow Nissan’s recommendations for replacement parts and use a compatible battery type and size for your trim
If you notice persistent electrical issues or trouble starting, contact a qualified technician to test the battery and the alternator, as a failing charging system can mimic a bad battery.
Summary
In brief, the 2020 Nissan Altima uses a standard 12-volt lead-acid automotive battery, not a hybrid or electric-vehicle traction battery. It powers starting, lighting, and accessories, and should be inspected and replaced on a typical 3–5 year cycle, with attention to climate and driving conditions.