Instructor: Dr. Mark Quarto

Course Length: 5 modules (each containing approximately 1 hour of instruction)

Course Handbooks Included: 1 digital copy per module

Learning Assessments: Post-lesson scored quizzes (one quiz per lesson) 

Certificates of Completion: One certificate of completion is provided to the participant after completing the training series lessons and learning assessments. Certificates remain available for download in user dashboard while the account is active.

Duration of Access: This course and its lessons, materials, and assessments will be available for 90 days after purchase. Certificates of completion will be available to the participant in their user dashboard while the account is active (even if not currently participating in any courses).

Recommended Prerequisites: 

  • High Voltage Safety and PPE (#AODHVS010)
  • High Voltage Vehicle Safety Systems (#AODHVVSS001)
  • Introduction to Hybrid Electric Vehicle Systems (#AODIHEV011)


The Lithium Ion family of technologies are the primary technology for plug-in and electric vehicles but, it is also being found in hybrid products.  The many different Lithium technologies will force technicians to become familiar with it so they will understand how it impacts diagnostics and repair.  Each family can have a different discharging voltage characteristic which effects vehicle and Scan Tool diagnostics.  This series will provide the technician with the necessary information on all of the Lithium technologies, cell balancing systems, failure modes, diagnostics, and how these battery packs can be repaired instead of replaced. 

Course Objectives

By participating in this On Demand Course, you will be able to:

  • List the advantages and disadvantages of lithium technologies and the automotive lithium battery formats
  • Describe the discharging and charging process of a lithium battery cell
  • Describe the operation of a battery module/cell temperature sensing circuit
  • Describe the purpose and operation of battery pack contactors, the battery pack Pre-Charge circuit, and the battery pack Current Sensor
  • Identify the components in air and liquid cooling system for lithium battery packs
  • Identify and describe the components of a battery management system cell balancing system
  • Explain the difference between how vehicle instrumentation displays battery pack SOC% vs. actual battery pack SOC%
  • Relate in how SEI Layer growth effects battery cell operation
  • Describe how failure modes on the positive and negative electrode evolve
  • Compare the difference between battery power vs. capacity
  • Explain the battery pack Stress Test process and how the results can help determine what actions are needed

At the conclusion of this course, the technician will be able to identify the various Lithium formats, aspects cell aging, rebuilding concepts, and understand how to use Scan Tool PIDs to help analyze, diagnose and repair the battery pack.  


Is this online training course for you? 

Technicians with limited or some knowledge or experience with high voltage Lithium battery pack education will find this course of immense benefit.  There are also areas within the course that could benefit more seasoned battery pack professionals.  Whether a Technician is involved with HEV, PHEV, BEV, EREV or FCEV products, this course will provide information on Lithium cell operation, Battery Management System operation, battery pack hardware systems, battery cell failure modes, cell/module testing methods, battery stress testing, and how this differs from NiMH Systems.


By creating an account and participating in this course you agree to Access OnDemand's Terms of Use and Privacy Policy. Individual course purchases are for personal use by the purchaser only. 

Course curriculum

  • 1

    Part 1

    • Lithium Ion Battery Families: Cell Construction and Operation

    • Part 1 Lithium Ion Battery Families: Cell Construction and Operation Quiz

  • 2

    Part 2

    • Lithium Product Systems

    • Part 2 Lithium Product Systems Quiz

  • 3

    Part 3

    • Vehicle Performance Changes Due to Lithium Aging and Cell Balancing

    • Part 3 Vehicle Performance Changes Due to Lithium Aging and Cell Balancing Quiz

  • 4

    Part 4

    • Failure Modes and What Causes Cell Aging or Loss of Capacity

    • Part 4 Failure Modes and What Causes Cell Aging or Loss of Capacity Quiz

  • 5

    Part 5

    • How to Test/Diagnose Plug-In and EV Battery Packs Using the Scan Tool

    • Part 5 How to Test/Diagnose Plug-In and EV Battery Packs Using the Scan Tool Quiz

Pricing options

This course is part of the Unlimited Training Subsrcription, but you can also purchase this course individually. Make one payment at a discounted rate, or make three equal payments over three months.

About the Instructor

Dr. Mark Quarto

Dr. Mark Quarto is a Vehicle Electrification expert with over 30 years in the automotive industry. In addition to being an instructor and special consultant to FutureTech Auto, Dr. Quarto is the founder of Quarto Technical Services (QTS), which provides engineering services, diagnostic equipment, training, technical support, and consulting in Vehicle Electrification to all facets of the automotive industry.

Responsibilities include design and development of: diagnostic test equipment & software, management and technical education, curriculum and training programs, and technology innovations with solutions focused on Hybrid and Electric Vehicle Propulsion and Energy Management Systems. These unique diagnostic techniques and applications are effectively used globally supporting automotive aftermarket businesses.  

Other professional experience includes 28 years at General Motors Company with the last 16 years dedicated to Advanced Vehicle Engineering and as an Engineering Group Manager. Responsibilities included management, development of control and diagnostics systems, and service solutions for the Chevrolet Spark, Chevrolet Volt, Fuel Cell, Two-Mode Hybrid, Parallel Hybrid Truck (PHT), EV1 Electric Vehicle, S10 Electric Truck, and Alternative Fuel Systems Programs.  Prior 12 years included Service Training Development Manager and Resident Instructor in the technical training environment.  

Specialized Education includes a Doctorate in Technical Education from Nova Southeastern University, specialized in design, development, and technical education systems for hybrid and electric vehicles including high voltage energy and propulsion systems. Master’s Degree and two Bachelor Degrees all are in the areas of Electrical Engineering and Automotive Technology.