Toyota RAV4 Prime/PHEV High-Voltage Battery

WeberAuto October 17, 2025
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WeberAuto

@weberauto

About

Welcome to the WeberAuto Channel at Weber State University (WSU) - Davis Campus in Layton, Utah, U.S.A. The purpose of this channel is to help prepare the next generation of service professionals in the automotive industry. The videos I post are related to the topics I teach during the current semester here at WSU. I always strive to keep up to date and bring my students the latest technology as well as teaching them proper diagnostic and service methodology Our videos contain highly technical content related to Hybrid and Electric vehicles, Automatic Transmissions, Manual Drivetrain, and Vibration Diagnostics. This is not the Disney Channel. If you are looking to be entertained, this is not the channel for you. Please consider a donation to the Department of Automotive Technology at Weber State University at http://advancement.weber.edu/Automotive Notice: This is not an official WSU sponsored channel, it is privately owned and managed by Professor John D. Kelly.

Video Description

Join me as I assemble the refrigerated 18.2 kWh High-Voltage Battery used in the 2021-2025 Toyota RAV4 Prime/PHEV. Learn which parts are involved and how they work. CORRECTIONS: 1. I have been informed that the 2026 and later RAV4 PHEV Battery is different from the one in this video. 2. I mispelled the word solenoid 😕 TIMELINE: 0:00 Introduction 0:13 Battery Size and Location 0:31 Battery Ratings 1:03 Upper Cover and MSD Cover 1:50 Empty battery tray 2:00 12 Volt battery stack heaters 2:33 Cell stack cooler sheets 3:46 Cooler sheet bracket 4:03 Cell stack information 4:58 Cell stack one 5:35 Cell stack three 6:14 Cell stack two 6:30 Cell stack four and stack voltage 7:12 Overall battery negative 8:02 Overall battery positive 8:09 MSD bracket 8:40 Refrigerant inlet pipes, solenoid, stepper motors, and temperature sensors 10:01 Refrigerant outlet pipes and temperature sensors 10:58 Front bracket, two inverter connectors, and charging connector 11:50 low-voltage harness 12:15 High-voltage junction box, contactors, pre-charge resistor, current sensor, and inverter connectors. 13:08 Cell stack series cables 14:10 low-voltage internal harness 15:26 Support bracket 15:54 Battery Voltage Sensor ECU 16:18 Battery ECU 16:35 Wire Cover 17:05 High-voltage interlock circuit (HVIL) 17:50 Battery heater relay 18:14 Battery weight 18:25 Battery Cover and pressure test requirement 19:03 Pressure relief valve 19:18 Battery vent, MSD cover, MSD lever, and Fuse 20:20 Summary and additional educational opportunities ABOUT US Weber State University (WSU) Davis Campus - Automotive Technology Department - Hybrid and Electric Vehicles Lab. We teach current vehicle technologies to our automotive students at Weber State University and online. For more information, visit: https://www.weber.edu/automotive This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see https://www.weber.edu/automotive/J_Kelly.html ADDITIONAL TRAINING FOR YOU Join us for hybrid and electric vehicle training with two online courses and a 5-day on-campus boot camp with Professor John D. Kelly. See https://www.weber.edu/evtraining DONATE TO OUR DEPARTMENT Please consider a donation in my name to the Department of Automotive Technology at Weber State University here: https://advancement.weber.edu/Automotive

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