Li-ion

Toyota RAV4 Prime 2021-2025 (AXAP54) Plug-in Hybrid Battery

The Toyota RAV4 Prime 2021-2025 (AXAP54) Plug-in Hybrid Battery is the high voltage battery in the Toyota RAV4 Prime (2021-2025).

At a Glance

Li-ion chemistry
355.2 volts nominal

Specifications

Chemistry	Li-ion
Nominal voltage	355.2 V
Capacity	51 Ah
Energy	18.1 kWh
Location	undercarriage (under the floor)

Cars That Use It

Toyota RAV4 Prime 2021-2025 AXAP54 AWD; renamed RAV4 Plug-in Hybrid (PHV) for 2025 on techinfo Run the checklist

Same Electrical Spec

These packs share this one's chemistry, voltage and module count. That is a spec match only. It does not mean the parts fit each other, so check with a technician.

Recalls

23V041000 2021 In some cold-weather driving in EV mode, hybrid control software may shut the hybrid system down if the accelerator is pressed quickly.
23V478000 2021-2022 The current rectifying module inside the DC-DC converter may have been damaged in production and can short circuit.

Check the exact car by VIN at nhtsa.gov/recalls.

Warranty

Toyota's 2021-2024 RAV4 Prime and 2025 RAV4 Plug-in Hybrid Warranty & Maintenance Guides list a Hybrid Battery Warranty of 10 years or 150,000 miles from the in-service date, whichever comes first. (techinfo.toyota.com: T-MMS-21RAV4Prime.pdf, 2026-10-07)

How battery warranties work.

Get This Pack Tested

Do not open it yourself. The pack can hurt you with the car switched off.

Book a battery test Find a tech near you

How to test a hybrid battery safely

Sources

Last updated October 7, 2026. Failure and recall notes are as of that date. Spotted a mistake, or speaking for a maker? Report an error.

Hybrid Battery Test is independent. It is not affiliated with, sponsored by or endorsed by Toyota. Names and part numbers are used only to identify the vehicle and the part.