What is the voltage of the battery in the Toyota EV?
The nominal voltage is about 355 volts.
Toyota’s current BEVs—notably the bZ4X and the RZ 450e—use the e‑TNGA platform with a high‑voltage battery system that centers around a 355 V nominal voltage. The packs are typically 71.4 kWh gross (about 64 kWh usable), and the voltage stays in roughly the mid‑300s across driving and charging conditions. This 355 V figure is the standard for these models, though consumer materials sometimes describe it in the context of the broader “400 V class” of EVs.
Voltage standards across Toyota’s BEV lineup
Key details about the voltage you’ll find in Toyota’s current BEVs.
- Toyota bZ4X: nominal system voltage around 355 V; battery pack approximately 71.4 kWh gross (about 64 kWh usable).
- Toyota RZ 450e (Lexus badged on the same e‑TNGA platform): nominal system voltage around 355 V; battery pack approximately 71.4 kWh gross (about 64 kWh usable).
- Note: The voltage is a characteristic of the e‑TNGA high‑voltage system and is broadly shared across these current-generation BEVs, with small market or trim variations.
In practice, this means all current Toyota BEVs on sale today operate with a consistent high‑voltage pack around 355 V, which informs charging rates, onboard electronics, and service planning.
What this means for charging and performance
The 355 V nominal system supports fast DC charging (up to the vehicle’s approved peak), standard onboard chargers for AC charging, and the integration of drive motors and power electronics. While the exact charging speed and regeneration performance vary by model and market, the voltage figure itself remains a defining constant of Toyota’s BEV architecture.
Summary
Toyota’s current electric vehicles use a high‑voltage battery system with a nominal voltage of about 355 volts, shared by the bZ4X and RZ 450e. The packs are around 71.4 kWh gross (roughly 64 kWh usable), and the voltage remains in the 350–360 V range across operation. This standardization helps Toyota optimize charging compatibility and system design across its BEV lineup.
