Do Dodge Durangos have two batteries?
Yes—Durangos equipped with the eTorque mild-hybrid system use a second battery in addition to the standard 12-volt battery. Models without eTorque generally rely on a single 12-volt battery.
The Durango's electrical setup depends on the engine and year. The 3.6-liter Pentastar engine paired with the eTorque mild-hybrid system uses a 48-volt battery to support start-stop and torque assist, while other engines such as the 5.7-liter Hemi and the 6.4-liter Hemi (often found in performance or SRT models) do not employ eTorque and run on a single 12-volt battery.
Which Durango trims have two batteries?
Here is a quick breakdown of where the two-battery setup applies.
- Durangos with the 3.6L Pentastar engine paired with the eTorque mild-hybrid system. These models include several trims across model years where eTorque was offered (two batteries: 12V for standard electronics and a 48V pack for the mild-hybrid system).
- Durangos with the 5.7L Hemi or 6.4L Hemi (SRT) without eTorque. These models use a traditional single 12-volt battery for all electrical systems.
In practice, if your Durango has the eTorque system, you should expect two energy storage sources: the conventional 12-volt battery and a 48-volt battery that powers the belt-driven starter generator and related mild-hybrid functions. If your vehicle lacks eTorque, it will typically have only one 12-volt battery.
How to tell if your Durango has eTorque (two-battery setup)
Look for signs of the 48-volt mild-hybrid system and the eTorque branding in the engine bay or window sticker. Common indicators include the presence of a belt-driven integrated starter generator (BISG) and a dedicated 48-volt battery pack located in the engine compartment. The engine code is often the 3.6L Pentastar with eTorque. The vehicle’s manual, window sticker, or dealer documentation will explicitly note the eTorque or 48V system.
If you don’t see an explicit eTorque designation and your Durango is equipped with a large V8, you likely have a traditional single-battery setup.
Summary
- Some Dodge Durango models use a two-battery system (12V plus a 48V battery) when equipped with the eTorque mild-hybrid system on the 3.6L engine.
- Other Durango models—particularly those with the 5.7L or 6.4L Hemi engines—continue to rely on a single 12-volt battery.
- Identifying two batteries typically involves checking for the 48V eTorque system and BISG components, along with the vehicle’s documentation and engine labeling.
