In short, a 2020 Dodge Durango uses a standard 12-volt automotive battery for starting and accessories. If your Durango has the optional eTorque mild-hybrid system, the 12V battery is typically an AGM (absorbed glass mat) type to cope with the extra electrical load.
The Durango lineup includes models with the 3.6-liter Pentastar V6 and the 5.7-liter Hemi; starting with some 2020 trims, Dodge offered eTorque mild-hybrid as an option on the V6, which adds a 48-volt subsystem to assist the motor. The 12V battery remains the one you replace for daily use, while the 48V hardware powers the hybrid function. Exact battery configuration can vary by trim and market, so confirm with the owner's manual or a Dodge dealer if you want precise specifications for your vehicle.
Battery type and eTorque explanation
The 12-volt battery in the Durango is used to crank the engine and run accessories. On models equipped with eTorque, Dodge integrates a 48-volt mild-hybrid subsystem to provide additional torque assist. Because the electrical demand is higher on these models, the manufacturer commonly specifies an AGM 12-volt battery for reliable performance and longevity. There is no high-voltage battery you would replace for routine maintenance.
Determining the correct 12V battery for your Durango
To ensure you buy the right battery, follow these steps:
- Consult the owner's manual or a Dodge dealership for the exact battery group size and specifications for your trim.
- Inspect the existing battery label to confirm the required type (AGM or flooded) and the essential electrical specs.
- For Durangos with eTorque, prioritize an AGM 12V replacement to handle the higher electrical load.
- Ensure the replacement fits in the battery tray and matches the terminal layout in your vehicle.
Following these steps helps ensure a proper fit and reliable starting performance.
Replacement considerations
When replacing the 12V battery, consider the following:
- Type: AGM is often recommended for Durango models with eTorque; choose the type your manual specifies.
- Capability: Match the battery’s capacity ratings to the OE spec, and ensure it meets the required cold-cranking performance for your climate.
- Installation: If you’re not comfortable, have a professional install to ensure proper connections and corrosion protection.
- Disposal: Recycle the old battery at an authorized facility.
Always verify your exact trim's requirements with the dealer or manual to avoid compatibility issues.
Summary
The 2020 Dodge Durango uses a standard 12-volt battery for starting and electronics; models with eTorque employ an AGM 12V battery to handle elevated electrical loads, while a separate 48V system supports the mild-hybrid function. Exact group size and specifications vary by trim and market, so check the label on the battery or the owner's manual to purchase the correct replacement.


