Grab some more snacks and get ready for the first YouTube video showing the complete reassembly of a Toyota Prius Prime Battery!

TIMELINE:
0:00 Video introduction
1:40 Battery heater overview
3:15 MUST SEE - Closeup of heater grid
7:50 Battery heater installation
9:31 Battery cell stack specifications
11:35 MUST SEE - OSHA and NFPA 70E safety requirements
13:15 Battery cell stack voltage
14:30 Battery cell stack weight
16:50 Battery cell stack dimensions
18:03 Battery cell stack interconnections and monitoring circuits
22:20 Battery cell stack venting
23:00 Battery cell stack cooling
26:30 MUST SEE - DANGER: Battery cell stack disassembly
31:45 MUST SEE - Battery stack to battery stack series connections
33:52 High voltage fuse function
35:45 Service disconnect lever function
37:46 Battery ECU function
38:25 Battery negative junction block function
42:20 Battery positive junction block function
43:00 Charger fuse
45:54 Battery cell stack installation
51:40 Low voltage wiring harness installation
52:50 Vent tube manifold, exhaust duct, and vent inlets installation
55:57 MUST SEE - LIQUID WARNING
57:40 Temperature sensor connections
58:46 Heater connections
59:45 Cell voltage monitoring harnesses
1:01:07 High voltage series connections
1:01:30 Battery frames installation
1:01:57 High voltage fuse installation
1:02:08 Battery ECU installation and connections
1:04:13 Battery junction block #1 (Negative) installation
1:04:23 Battery junction block #2 (Positive) installation
1:05:06 Service plug grip disconnect lever connector installation
1:06:10 Battery heater relay installation
1:06:25 Low voltage connections
1:09:23 Battery cover upper installation
1:09:51 Battery shield cover installation
1:12:55 Battery weight measurement
1:14:28 Video review

ABOUT US:
Weber State University (WSU) - Department of Automotive Technology - Ardell Brown Technology Wing - Transmission Lab. 2017 Toyota Prius Prime (Plug-In) PHEV 351.5V 8.79kWh 25Ah Li-Ion Battery Deep Dive - A Youtube first! The system is protected by a 125A fuse. This is the second in a series of videos on the Toyota Prius Prime. This episode covers the complete reassembly of the 8.79kWh 351.5 Volt 25 Ah air-cooled battery from a 2017 Toyota Prius Prime PHEV. The Prius Prime battery is rated at 25Ah and its voltage is 351.5V, so its kWh rating is 25Ah x 351.5V = 8787.5 Wh or 8.7875 kWh.

W.S.U is a leader in Hybrid and Electric Vehicle education. This topic is taught as part of our 4-year bachelor's degree program. For information on joining the Weber Automotive program, visit: http://www.weber.edu/automotive

This video helps cover content related to the 2017 National Automotive Technicians Education Foundation (NATEF) Master Automobile Service Technology (MAST) Standard task 1.A.9 "Identify service precautions related to service of the internal combustion engine of a hybrid vehicle."

This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see http://www.weber.edu/automotive/J_Kel...

Questions for Teachers:
1. What is the purpose of the battery heater?
2. Under what conditions will the battery heater activate?
3. What is a battery stack?
4. What is the stack voltage?
5. How many battery stacks are in this battery?
6. How are the stacks wired (Series or parallel)?
7. How are the stacks cooled?
8. How are the stacks vented?
9. What is the amperage rating of the battery fuse?
10. How are battery cell voltages monitored?
11. What is the function of the negative contactor?
12. What is the function of the positive contactor?
13. How many temperature sensors are in this battery?
14. What is the concern with carrying liquids in the hatch area?
15. How much does this battery weigh?

ADDITIONAL TRAINING FOR YOU
Join us for hybrid and electric vehicle training with two online courses and in a 5-day on-campus boot camp with Professor John D. Kelly. See http://www.weber.edu/evtraining

DONATE TO OUR DEPARTMENT
Please consider a donation to the Department of Automotive Technology at Weber State University here: http://advancement.weber.edu/Automotive