2019 Honda Civic Battery Size & Specs

Quick answer

• BCI Group Size: 47
• Cold Cranking Amps (CCA): 360-500 A
• Reserve Capacity: 60-85 minutes
• AGM vs Flooded: Flooded (standard); AGM is an optional upgrade
• Terminal Layout: Left-hand positive (+)
• Physical Dimensions (approximate): 9.6 x 6.9 x 7.5 inches (L x W x H)

Replacement battery options

Here are some popular replacement batteries for the 2019 Honda Civic:

• Interstate: MT-47/H5
• DieHard: Gold 47
• ACDelco: Gold 47AGM
• Optima: YellowTop DH5

AGM vs flooded — which does this vehicle need?

The 2019 Honda Civic comes from the factory with a standard flooded lead-acid battery. This is a reliable and cost-effective option that will serve most drivers well. You are not required to upgrade to an AGM (Absorbent Glass Mat) battery, but it can be a worthwhile investment. AGM batteries offer better performance in extreme temperatures, have a longer lifespan, and are more resistant to vibration. For a relatively small price difference, an AGM is a recommended upgrade.

Post-installation relearn / reset procedure

After replacing the battery in your 2019 Honda Civic, you may need to perform a few simple relearn procedures to ensure all systems are functioning correctly.

• Power Windows: The auto up/down feature for the power windows may need to be reset. To do this, simply roll each window all the way down and then all the way up, holding the button for a few seconds in each direction.
• Radio/Infotainment System: In some cases, the radio may require a security code to be entered after a power loss. This code can usually be found in your owner's manual or obtained from a Honda dealership.

Signs of a failing battery

A failing battery can manifest in several ways. Here are some of the most common signs:

• Slow Engine Crank: If the engine turns over more slowly than usual when you try to start it, this is a classic sign of a weak battery.
• Dimming Lights: Notice your headlights or interior lights dimming, especially at idle? This can indicate a battery that is struggling to provide consistent power.
• Warning Lights: A battery warning light on the dashboard is a clear indication that something is wrong with the charging system or the battery itself.
• Corrosion: A buildup of white, powdery corrosion around the battery terminals can interfere with the flow of electricity and is a sign that the battery needs attention.

Common battery issues for this generation

The tenth-generation Honda Civic (2016-2021) is a very reliable vehicle, but there are a few common issues related to the battery and charging system to be aware of:

• Parasitic Draw: Some owners have reported issues with a "parasitic draw," which is when an electrical component continues to draw power even when the vehicle is turned off. This can lead to a dead battery if the car is left sitting for an extended period.
• Premature Failure: While not widespread, some owners have experienced premature battery failure. This is more common with the factory-installed flooded batteries, and upgrading to an AGM can help mitigate this issue.

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