The 2018 Ford Fusion uses different battery types depending on the powertrain: gasoline-only models have a standard 12-volt lead-acid battery, while hybrids use high-voltage packs—nickel-metal hydride (NiMH) for the Hybrid and lithium-ion (Li-ion) for the Energi plug-in hybrid.
Below is a concise breakdown by trim and powertrain to help identify the correct battery type for a 2018 Fusion.
- Gasoline-only Fusion: a conventional 12-volt lead-acid battery used to start the engine and power the electrical system when the engine is off.
- Fusion Hybrid: uses a high-voltage nickel-metal hydride (NiMH) battery pack that stores energy for the hybrid propulsion system and to assist the gasoline engine. Typical capacity is around 1.4 kWh.
- Fusion Energi (plug-in hybrid): uses a larger high-voltage lithium-ion (Li-ion) battery pack suitable for longer all-electric driving. Typical capacity is around 7.6 kWh.
Conclusion: The standard 12V battery is present in gasoline models, while Hybrid and Energi variants rely on higher-voltage packs (NiMH for Hybrid and Li-ion for Energi) with different storage capacities that influence charging behavior and electric range.
Summary
In short, a 2018 Fusion’s battery type depends on the powertrain: 12-volt lead-acid for gasoline models, NiMH for the Hybrid, and Li-ion for the Energi plug-in hybrid, with the latter two delivering high-voltage energy storage for electric-assisted driving.