How many cells does a Prius have?
The standard Toyota Prius hybrid uses 168 nickel-metal hydride (NiMH) cells, arranged as 28 modules of six cells each, for a nominal pack voltage of about 201.6 volts.
The exact cell count can vary by model and generation. Plug-in variants such as the Prius Prime use a different battery chemistry and a different cell arrangement, while newer and regional specifications can alter module design. For precise numbers on a specific vehicle, consult the owner’s manual or service documentation.
Cell counts by Prius variant
Below is a concise overview of how the common Prius configurations differ in their cell construction. Note that exact counts can vary by market and model year.
- Standard Prius hybrid (non plug-in): 168 NiMH cells arranged in 28 modules of 6 cells each, about 201.6V nominal.
- Prius Prime and other plug-in variants: use a lithium-ion battery pack with a different cell count and configuration; the precise number depends on generation and market.
In summary, the traditional Prius traction packReliable uses 168 NiMH cells, while plug-in variants switch to lithium-ion with a distinct cell count and arrangement.
How to verify the cell count in your Prius
To confirm the exact cell count for a specific vehicle, check the vehicle’s service manuals or parts catalogs, inspect the battery pack labeling if accessible, or contact Toyota customer support. On many models, the information is included in repair documentation but is not meant to be accessed by vehicle owners; handling or opening the pack should be left to qualified technicians.
Summary
For most Toyota Prius hybrids, the traction battery comprises 168 NiMH cells (28 modules of 6 cells). Plug-in versions, such as the Prius Prime, use a different lithium-ion pack with a separate cell-count configuration. Across generations and markets, the core idea remains: NiMH packs in traditional hybrids vs. lithium-ion packs in plug-ins, with corresponding variations in cell counts and voltage.
