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)


This course series is a MUST for any technician that is servicing hybrid vehicles.  NiMH battery systems continue to be the primary battery technology in hybrid vehicles and have been since the 2000 model year.  If a technician doesn’t know the fundamentals of NiMH operation it is impossible for them to provide the customer a solid diagnosis or repair.  This course will concentrate on the NiMH technology, how it performs as it ages, how it can effect vehicle performance and fuel economy, and how to test it by using a Scan Tool. 

Course Objectives

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

  • List the different formats of a NiMH cell or module and explain the advantages and limitations of NiMH technology
  • Explain the functions of Battery Power and Battery Energy
  • Explain what major sensing and component control systems operate in conjunction with the battery controller system
  • Using the NiMH Module Voltage Sensing Circuit, describe how this circuit functions to communicate battery module/cell voltages to the battery controller
  • 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
  • Describe NiMH cell aging and the Apparent Capacity Loss function
  • Elaborate on how geographical area, terrain, and drive cycle can affect the operation of a NiMH battery pack (cell)
  • Visually identify battery module or cell electrolyte leaks and bus bar corrosion
  • Explain how a battery pack controller aging can affect how voltages can be skewed
  • Describe how a battery pack cooling system can effect battery module/cell longevity, premature module/cell failure, and overall performance
  • Explain the battery pack Stress Test process and how the results can help determine what actions need to be taken

At the conclusion of this series, the technician will be able to identify the condition of a battery pack, servicing instead of replacing it, and using specific testing methods outlined in this course.


Is this online training course for you?

NiMH battery systems continue to be used in Hybrid Electric Vehicle (HEV) applications and provide an excellent foundation in high voltage battery pack systems.  This course will include NiMH battery cell operation, cell/module failure modes, diagnostic testing methods, battery hardware components, battery stress testing techniques – and how some of these areas differ from Lithium systems.  This course provides automotive service professionals with limited or some experiences in high voltage battery pack systems an excellent foundation to learn these battery pack systems and use this information as platform to learn high voltage Lithium battery pack systems.  There are also areas within the course that could benefit more seasoned battery pack professionals.


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Course curriculum

  • 1

    Part 1

    • NiMH Batteries: Cell Construction and Operation

    • Part 1 NiMH Batteries: Cell Construction and Operation Quiz

  • 2

    Part 2

    • NiMH Product Systems: Ford, GM, Honda, Lexus, Nissan, and Toyota Batteries

    • Part 2 NiMH Product Systems: Ford, GM, Honda, Lexus, Nissan, and Toyota Batteries Quiz

  • 3

    Part 3

    • NiMH: Vehicle Performance Changes Due to NiMH Aging

    • Part 3 NiMH: Vehicle Performance Changes Due to NiMH Aging 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 and Diagnose NiMH Hybrid Battery Packs Using the Scan Tool

    • Part 5 How to Test and Diagnose NiMH Hybrid 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.