The 2019 Honda Passport uses a standard 12-volt automotive battery rather than any hybrid-drive pack.
Replacement batteries for this model are typically Group Size 51R and offer roughly 680–700 cold-cranking amps (CCA) with a conventional flooded lead-acid design. Some aftermarket options provide AGM construction, but the OEM spec is a flooded 12V battery.
Battery type and size you’ll encounter
Understanding the battery footprint
Common specs you’ll see when shopping for a replacement include group size, cold-cranking amps (CCA), and reserve capacity (RC). The information below reflects typical factory specs for the 2019 Passport across common trims and climates.
- Type and size: 12-volt lead-acid automotive battery, usually a conventional flooded design.
- Group size: 51R or equivalent that fits the Passport’s battery tray and terminals.
- Cold-cranking amps (CCA): typically around 680–700 CCA for adequate winter-start performance.
- Reserve capacity (RC): commonly around 90 minutes, providing power to essential accessories if the engine is off.
- Replacement options: aftermarket AGM batteries are available, but ensure compatibility with the vehicle’s electrical system and warranty terms.
Bottom line: check the existing battery label or the owner’s manual to confirm the exact group size and CCA for your vehicle’s year, trim, and climate.
Replacing or maintaining the battery: practical steps
Use these steps as a basic guide for replacing or maintaining the Passport’s 12-volt battery. If you’re not comfortable with vehicle electrical work, seek professional help.
- Park on a level surface, engage the parking brake, and turn off the engine and all accessories.
- Disconnect the negative (-) terminal first, then the positive (+) terminal to avoid short circuits.
- Remove the hold-down clamp or bracket and lift the old battery straight up from the tray.
- Inspect the battery tray and terminals for corrosion; clean with a solution of baking soda and water if needed.
- Install the new battery in the same orientation, secure the hold-down, reconnect the positive terminal first, then the negative terminal.
- Start the engine to verify proper operation; check for warning lights and ensure electrical systems reset if required.
Note: Dispose of the old battery at an appropriate recycling facility and consider professional installation if you’re unsure about any step.
Summary
The 2019 Honda Passport uses a standard 12-volt conventional flooded lead-acid battery, typically Group Size 51R with about 680–700 CCA and ~90 minutes of reserve capacity. AGM options exist from some aftermarket brands but are not the factory specification. Always verify the exact size and CCA on the current battery label or in the owner's manual, and consult a professional if you’re unsure.