The 2014 Ford Fusion uses different battery configurations depending on the powertrain: gasoline models rely on a conventional 12-volt lead-acid battery, while the hybrid and plug-in hybrid variants use high-voltage battery packs (NiMH for the Hybrid and Li-ion for the Energi) for propulsion, with a standard 12-volt system for electronics.
Battery types by powertrain
The Fusion’s three main powertrain options each use a different energy storage approach. The following bullets summarize the general battery configuration you’d find in each model.
- Gasoline models (S/SE/Titanium with 2.5L or turbo options): a conventional 12-volt lead-acid auxiliary battery used to start the engine and power accessories; no high-voltage propulsion battery is used.
- Fusion Hybrid (non-plug-in): a high-voltage propulsion battery with nickel-metal hydride (NiMH) chemistry powering electric-assisted driving, plus a standard 12-volt battery for accessories and system control.
- Fusion Energi (plug-in hybrid): a larger high-voltage lithium-ion propulsion battery (about 7.6 kWh) for electric drive, along with a 12-volt battery for traditional automotive electronics and control systems.
Note: The 12-volt battery in all variants performs essential tasks such as engine starting, charging the electronics, and running features like lights and infotainment. The high-voltage packs are contained and managed by the vehicle’s hybrid system and are not user-serviceable outside authorized service channels.
Maintenance and safety considerations
Maintenance guidelines differ by variant. The 12-volt battery should be tested and replaced as needed (typically every 3–5 years, depending on climate and usage). For the hybrid and Energi models, battery health is assessed as part of regular service by trained technicians due to high-voltage safety protocols.
If you own a Fusion Hybrid or Energi
High-voltage safety is essential: do not attempt to jump-start, push-start, or service the high-voltage battery yourself. Always consult a Ford dealer or an authorized hybrid technician for any HV battery work or diagnostics. The 12-volt battery can be replaced via standard procedures with proper safety precautions.
Summary
In short, the 2014 Ford Fusion’s battery configuration varies by model: gasoline versions use a standard 12-volt lead-acid battery, the Fusion Hybrid relies on a NiMH high-voltage battery pack for propulsion with a 12-volt system, and the Fusion Energi uses a larger lithium-ion high-voltage pack for propulsion along with a 12-volt battery for electronics. For any work on the high-voltage systems, professional service is required.
Do Ford Fusions shift hard?
It is a good idea to keep an eye and ear on the way your car sounds when you are accelerating, as the RPMs should never get so high that they are noticeable. Ford Fusion transmissions are also known for hard shifting issues.
Does a 2014 Ford Fusion have two batteries?
The 2014 Ford Fusion Hybrid relies on two distinct battery systems: a high-voltage hybrid battery pack to manage electric propulsion and regenerative braking, and a separate 12V battery to power accessories and control modules.
What battery does a 2014 Ford Fusion need?
DieHard Gold – Battery : T5 Group Size, 650 CCA, 810 CA, 90 Minute Reserve Capacity (Part No. 90/T5)
What kind of car battery for a Ford Fusion?
Ford Fusion cars run on either traditional flooded batteries or AGM batteries.