In brief: No. The Honda Clarity lineup does not use two large battery packs in a single car. Each model relies on a single high‑voltage propulsion battery (or, in the fuel‑cell variant, a fuel‑cell system with a smaller support battery), plus a conventional 12‑volt battery for standard car electronics.
Battery configurations by Clarity variant
The Clarity family comprises three distinct powertrains, each with its own energy storage setup and a standard 12‑volt battery for auxiliary systems.
- Clarity Plug‑In Hybrid (PHEV): Stores energy in a dedicated high‑voltage battery that powers the electric motor for short trips; a gasoline engine acts as a generator or propulsion as needed; includes a 12‑V battery for electronics and starting.
- Clarity Electric: Uses a larger high‑voltage battery pack to supply most of the vehicle’s propulsion energy for all‑electric driving; also includes a 12‑V battery for accessories and system electronics.
- Clarity Fuel Cell (FCEV): Generates electricity with a hydrogen fuel‑cell stack and employs a smaller traction battery to smooth power delivery and energy recovery; a separate 12‑V battery powers standard electrical systems.
In each case, there is not a pair of large, independent battery packs operating in parallel within a single vehicle. Instead, there is either one main high‑voltage battery (PHEV or Electric) or a hydrogen‑fuel‑cell system paired with a smaller energy‑storage component, plus the common 12‑V auxiliary battery.
Why the distinction matters
The idea of "two batteries" often comes from confusing the 12‑V auxiliary battery with the high‑voltage traction battery, or from conflating the fuel‑cell system with a traditional battery pack. Honda separates these components by design: the high‑voltage battery handles propulsion, while the 12‑V battery powers lights, infotainment, and other accessories. The fuel‑cell variant relies on a hydrogen stack rather than a second large battery, though it still uses a smaller battery for system support.
Summary
To recap, the Honda Clarity does not feature two large batteries in a single model. Each variant uses a single high‑voltage battery for propulsion (PHEV and Electric) or a hydrogen fuel‑cell system supplemented by a smaller battery, plus the standard 12‑V battery for essential electronics. The configuration varies by powertrain, but the concept of two independent large battery packs in one car does not apply to the Clarity lineup.
How many batteries does a Honda Clarity have?
Click here for the long. Answer. Click here for a short little answer.
Where is the battery in the Honda Clarity 2019?
In addition to a 12-volt battery, the Honda Clarity Plug-In Hybrid has lithium-ion batteries with a maximum voltage of 348 volts. Housed in a water resistant case, the lithium-ion batteries are stored under the cabin floor. This means that the lithium-ion battery body is normally hidden from view.
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How much does it cost to replace a Honda Clarity battery?
How much does it cost to replace a Honda Clarity hybrid battery? At dealerships, it can run between $6,000 and $8,000. Greentec Auto provides more affordable options, depending on your model and the battery type selected.
Can you jumpstart a Honda Clarity?
This video shows you how to use jumper cables to jump start a dead battery in your 2018 Honda Clarity. If you get into your Clarity, turn the key, and your car doesn't start (you may hear nothing or a clicking sound from the engine bay), you have a dead battery and need a jump-start.