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How does the Dodge Hornet charge the battery while driving?

In short, the Hornet charges its battery on the move primarily through regenerative braking and engine-driven charging, with the plug-in version able to recharge from an external source when parked. Below is a detailed look at how the system behaves on real roads.


How the Hornet’s hybrid system recharges on the fly


The Dodge Hornet, in its hybrid/plug-in hybrid variants, uses a combination of energy-recovery methods and smart energy management to keep the high‑voltage battery topped up during driving. This typically involves two main processes: energy recovered from braking and energy produced by the gasoline engine when it runs the generator. In practice, the car will prioritize electric propulsion when possible, but it will also recharge the battery as needed to sustain electric assist and overall efficiency.


Before moving to the specific charging sources, it’s important to understand the underlying idea: the vehicle’s powertrain is designed to balance power delivery with energy conservation. The control software monitors battery state of charge, driver demand, and road conditions to decide how to allocate energy between the electric motor, internal combustion engine, and the battery.



  • Regenerative braking: When you brake or coast, the electric motor acts as a generator, converting kinetic energy back into electricity to recharge the high‑voltage battery. The rate of charging depends on how aggressively you brake, the vehicle’s speed, and the current battery state of charge.

  • Engine‑driven charging: The gasoline engine can spin a generator to recharge the battery, especially during steady highway cruising or when battery SOC needs a boost. This can happen even if you’re not actively accelerating, as part of maintaining a healthy balance between propulsion and energy storage.

  • Smart energy management: The system continuously evaluates driving conditions, throttle input, and battery health to determine when to prioritize charging versus discharging the battery for performance or efficiency gains. In some modes, the car may run the engine to charge the battery in preparation for future electric-only driving.


Together, these methods allow the Hornet to recycle energy and keep the electric range usable, though charging speed and frequency will vary with driving style, road conditions, and mode selection.


Drive modes and how they affect charging


The Hornet offers several drive modes that influence how aggressively the battery is charged and how the powertrain distributes energy. Understanding these modes helps explain what happens to the battery during a typical trip.



  • EV/All‑electric mode: The vehicle relies mainly on the electric motor powered by the battery. Regenerative braking still recharges the battery, but charging is not prioritized if more energy is being drawn from the battery for propulsion.

  • Hybrid mode: The system actively manages both the engine and the electric motor to maximize efficiency and performance. It often runs the engine in a way that recharges the battery while providing torque to the wheels, balancing power delivery and energy recovery.

  • eSave/Hold mode: This mode preserves or builds up battery charge for later use, so the drivetrain may favor charging the battery even if you don’t request strong electric propulsion right away.


In everyday driving, most Hornet owners will notice the battery being refreshed during braking or in steady cruising scenarios where the engine can contribute to charging without compromising overall efficiency. The actual charging experience (rate, frequency, and remaining EV range) will depend on the chosen mode, your driving style, and how depleted the battery is.


External charging: plug-in capability when parked


For the plug-in hybrid version, you also have the option to recharge the battery by plugging in. This external charging is separate from on‑the‑road regeneration and is designed to restore larger chunks of energy quickly, so you can maximize electric driving ranges before relying on the gasoline engine again.



  • Plug-in charging: When parked, you can connect the Hornet to an external charger to replenish the high‑voltage battery from an outlet or charging station. The process is independent of driving and gives you a head start on energy for the next trip.

  • On‑the‑road charging still matters: Even when plugged in, regenerative braking and engine-driven charging continue to operate during drives, helping sustain battery SOC over longer trips.


Whether you’re relying on regen, engine charging, or occasional plug‑in charging, the aim is the same: keep the battery ready to provide electric assist and improve overall efficiency without requiring frequent stops for refueling.


Summary


The Dodge Hornet recharges its battery on the move mainly through regenerative braking and engine-driven charging, with a plug‑in variant offering external charging when parked. Drive mode selection and driving style influence how aggressively energy is recovered and how often the engine helps recharge the battery. In short, the Hornet’s Intelligent Energy Management blends regen, engine charging, and optional plug‑in charging to maintain battery readiness for electric assistance and efficiency on the road.


For drivers, this means you can often drive in electric mode for short trips, rely on regenerative braking to top up the battery during city driving, and use the plug‑in option to replenish more substantial energy reserves between longer trips.

Can your car battery charge while driving?


Yes. The engine drives an alternator , which generates electricity which charges the battery.



Does a Dodge Hornet charge while driving?


Yes, the Dodge Hornet R/T charges while driving through regenerative braking, and can also charge its battery using the gasoline engine in modes like eSave and Sport. These features allow the vehicle to function as a conventional hybrid, even without being plugged in. 
How it charges while driving

  • Regenerative braking: This is the most common method, where the car captures kinetic energy from braking and coasting to convert it back into electricity for the battery. 
  • eSave Mode: You can use this mode to actively charge the battery by using the gasoline engine to power a generator. You can set a desired battery charge level and the system will work to maintain it or add to it while driving. 
  • Sport Mode: While this mode prioritizes performance, it also runs the gasoline engine to continuously recharge the battery. This can charge the battery faster than eSave mode, especially during driving, as shown in Facebook user comments. 



How does the battery charge while driving?


In short, the alternator is like a small electrical generator that converts the analogue rotational movement of the car's engine into digital DC power to charge the battery back up. A belt goes from a component on the engine to the alternator and turns it at the rate of revolutions (“revs”) that the engine is turning.



How do hybrids charge while driving?


A hybrid electric vehicle cannot be plugged in to charge the battery. Instead, the battery is charged through regenerative braking and by the internal combustion engine.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.