Battery System Repair Technician Course
The Battery System Repair Technician Course trains learners to diagnose, troubleshoot, and repair electric vehicle battery systems with precision and safety. Participants gain hands-on experience in identifying faults, replacing modules, calibrating Battery Management Systems (BMS), and performing performance and safety tests. Designed for technicians and EV enthusiasts, this course equips learners with practical skills to maintain, repair, and optimize EV batteries, preparing them for in-demand roles in workshops, service centers, and the expanding electric mobility industry.
- 450 Hours (2 hours/day x 6 days/week x 38 weeks) OR at your own pace
- Hindi, English
- Learn & Get Certified
- Basic & Intermediate
- Hands-On Training
Online Course Fees
Offline Course Fees
About this course
Battery System Repair Technician Course focuses on the skills and knowledge required to diagnose, repair, and maintain battery systems, particularly in electric vehicles and energy storage applications. The course covers battery structure, common faults, testing tools, safety protocols, and repair techniques. Students will gain hands-on training in troubleshooting and servicing battery packs to ensure performance, reliability, and safety.
Gain skills to diagnose, repair, and maintain battery systems used in electric vehicles and energy storage, ensuring performance and safety.
- Online Course Fees: ₹3500, ₹2500 (incl. GST) (Excluding tools & equipment cost)
- Offline Course Fees: ₹18500, ₹17000 (incl. GST) (Excluding tools & equipment cost)
- Certification: ESSCI
- Duration: 450 Hours (2 hours/day x 6 days/week x 38 weeks) OR at your own pace
What you'll learn
After this course you will learn:
- Basics of Battery Technologies: Understand the fundamentals of Li-ion, LFP, NMC, lead-acid, and EV-grade battery packs used in electric vehicles and energy storage systems.
- Battery Pack Architecture & Components: Learn the internal structure of battery modules, cells, busbars, cooling arrangements, BMS wiring, fuses, relays, and safety components.
- Diagnostic Tools & Testing Procedures: Gain hands-on experience with multimeters, insulation testers, cell capacity testers, IR testers, thermal cameras, and battery analyzers.
- Fault Identification & Troubleshooting: Learn to diagnose issues like cell imbalance, overheating, low capacity, insulation faults, BMS communication errors, and wiring failures.
- Battery Disassembly & Repair Techniques: Understand safe disassembly of packs, busbar removal, cell replacement, re-spot welding, reconnecting terminals, and module-level repairs.
- Battery Management System (BMS) Basics: Learn how the BMS monitors voltage, current, temperature, SOC/SOH, protections, and how to reset/update/configure BMS after repairs.
- Reassembly, Balancing & Performance Validation: Master techniques for pack rebuilding, active/passive balancing, thermal management checks, and final performance testing before deployment.
- Battery Safety, Handling & Disposal Protocols: Understand fire safety, PPE usage, hazard prevention, transportation rules, and safe disposal or recycling of damaged cells and packs.
Course Content
Why take this course?
This course equips you with specialized skills to diagnose, repair, and maintain battery systems used in electric vehicles, renewable energy storage, and industrial applications. You will learn fault detection, module replacement, cell balancing, safety protocols, and performance optimization techniques. With the rapid expansion of EVs and energy storage projects, skilled repair technicians are in high demand to ensure system reliability and longevity. This course prepares you for hands-on, job-ready roles in service centers, manufacturing, and maintenance, contributing directly to the growing clean energy and electric mobility sectors.
How to use online TCoE platform?
Tools and Equipment required
National Skill Development Mission
Module 1: Introduction and orientation to the role of a Battery System Repair Technician
- To describe the role and responsibilities of a Battery System Repair Technician.
Module 2: Process of detecting the service-related issues
- Explain the process of discussing issues with the Electric Vehicle through with the customer.
- Explain the process of determining the type of repair to be carried out i.e. front-end repair or technical-level repair.
- Prepare sample documents to initiate the repair and service of an Electric Vehicle.
Module 3: Repair of faulty parts
- Demonstrate the process of inspecting various components and connections of the Battery System to detect faults.
- Demonstrate the process of carrying out repair and service activities as per the agreed Service Level Agreement (SLA).
Module 4: Testing the Battery System
- Demonstrate the process of testing the Battery system against various performance parameters.
- Explain the process of detecting the cause of the problem if test results diverge from specifications.
- Demonstrate the use of correct techniques to rectify faults as per the SOP.
Module 5: Soft Skills and Work Ethics
- Work effectively at the workplace.
- Implement the practices related to gender and PwD sensitization.
Module 6: Basic Health and Safety Practice
Apply health and safety practices at the workplace.
Module 7: Employability Skills
- Discuss about Employability Skills in meeting the job requirements.
- Describe opportunities as an entrepreneur.
- Describe ways of preparing for apprenticeship & Jobs appropriately.
Module 8: On-the-Job Training
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Battery Fault Diagnosis and Troubleshooting
This topic dives into the identification and analysis of faults that occur in electric vehicle (EV) battery systems. Learners explore how to detect issues such as cell imbalance, voltage drops, thermal irregularities, and communication failures in the Battery Management System (BMS). The module emphasizes using diagnostic tools, testing equipment, and data interpretation techniques to pinpoint root causes quickly and accurately. By mastering this topic, students gain the practical skills needed to repair, recalibrate, and restore EV batteries to safe and efficient working condition — a critical ability for any modern EV technician.
Job Opportunities
Here are some interesting job opportunities after completing the Battery System Repair Technician course:
EV Battery Repair Technician – Diagnose, repair, and replace faulty cells or modules in electric vehicle battery packs.
Battery Maintenance Engineer – Conduct regular testing, balancing, and health assessments of EV batteries to ensure long life and optimal performance.
Battery Management System (BMS) Service Technician – Troubleshoot and calibrate BMS hardware and software to resolve communication and performance issues.
EV Service Center Technician – Work in authorized EV workshops handling diagnostics, repair, and maintenance of vehicle battery systems.
Battery Safety and Testing Technician – Perform safety checks, temperature monitoring, and performance validation on repaired batteries.
Fleet Maintenance Technician (EVs) – Manage and maintain battery systems for electric vehicle fleets used in logistics, transport, or ride-sharing companies.
Battery Refurbishment Specialist – Restore and repurpose used EV batteries for secondary applications like energy storage systems.
- Quality Control Assistant (Battery Systems) – Inspect repaired batteries, verify compliance with standards, and maintain testing documentation.
Frequently asked questions
What is the Battery System Repair Technician course about?
This course focuses on diagnosing, repairing, and maintaining electric vehicle (EV) battery systems. You’ll learn how to troubleshoot faults, replace defective cells or modules, and ensure battery safety and performance.
Who can enroll in this course?
The course is ideal for diploma and engineering students, EV technicians, mechanics, and anyone interested in learning how to repair and maintain EV battery systems.
Do I need prior experience with EVs or batteries?
Not necessarily. The course starts with basic EV battery concepts and gradually moves toward advanced repair and diagnostic procedures, making it suitable for both beginners and professionals.
What practical skills will I gain?
You’ll learn fault detection, cell balancing, module replacement, BMS calibration, safety testing, and maintenance best practices — all through hands-on sessions and real-life case studies.
How does this course help my career?
With the rapid growth of the EV industry, there is a huge demand for skilled battery repair technicians. This course prepares you for roles in EV workshops, service centers, and manufacturing units.
Will I learn about high-voltage safety?
Yes! High-voltage safety is a key part of the course. You’ll learn how to safely handle, repair, and test EV batteries while following standard safety protocols.
