The gasoline-powered 2018 Kia Soul uses a standard 12-volt automotive battery, while the 2018 Kia Soul EV uses a high-voltage lithium-ion battery pack for its propulsion. This article breaks down the two configurations, plus maintenance tips and replacement guidance.
The 2018 Kia Soul is available in two main powertrains. Gasoline models rely on a traditional 12-volt battery for starting and electronics, whereas the Soul EV uses a dedicated high-voltage battery pack to supply the electric drivetrain. Below are the specifics for each version and practical notes for owners.
Gasoline-powered 2018 Kia Soul
Key details about the 12-volt battery used in the gasoline Soul and what to know when replacing or maintaining it.
- Battery type: 12‑volt lead-acid automotive battery (some trims may use an absorbed glass mat—AGM—type).
- Voltage: 12V system.
- Typical capacity: commonly in the 40–70 Ah range, depending on trim and battery specification.
- Location: located in the engine compartment, accessible for replacement.
- Replacement interval: typically every 4–6 years, though actual life depends on climate and usage.
- Maintenance notes: keep terminals clean, check for corrosion, and ensure proper torque on connection points.
In practical terms, the gasoline Soul’s 12‑volt battery is your standard starting and electrical system battery. If you notice slow cranking, dim lights, or warning lights, it’s a good idea to have the 12‑volt battery tested and replaced if needed. Always verify fitment with the vehicle’s manual or a parts specialist when shopping for a replacement.
2018 Kia Soul EV
For the electric Soul, the battery is a high‑voltage pack that powers the electric motor and accessories. Here are its defining characteristics and how they influence ownership.
- Battery type: lithium‑ion polymer high‑voltage battery pack.
- Battery capacity: about 27 kWh usable (30 kWh gross capacity).
- System voltage: roughly 350–400V DC.
- Onboard charging: typically 6.6 kW AC onboard charger; DC fast charging up to about 50 kW (depending on market/version).
- EPA range (approximate for early Soul EVs): around 93 miles, depending on conditions and year.
- Warranty: battery pack generally covered by a long-term warranty (commonly up to 10 years / 100,000 miles, depending on region and policy).
- Battery cooling: liquid-cooled system to manage temperature and performance.
Owners of the Soul EV should note that high‑voltage battery health affects range more than the 12‑volt battery does in gasoline models. When servicing or replacing the high‑voltage pack (or components connected to it), rely on qualified EV technicians and follow the manufacturer’s safety guidelines.
Summary
In short, the 2018 Kia Soul’s battery depends on the powertrain: the gas version uses a standard 12‑volt lead‑acid (with possible AGM option), while the Soul EV relies on a high‑voltage lithium‑ion battery pack (roughly 27 kWh usable, 30 kWh gross). If you own either model, know the correct replacement type, monitor for signs of degradation, and consult the owner’s manual or a Kia service center for specifications, warranty details, and compatible replacement options.