Electrical Engineer - Li Ion Cell Testing

Overview:

The Electrical Testing Engineer is responsible for planning and executing electrical, performance, reliability and safety testing of lithium-ion battery cells, and for analyzing test data to identify and resolve cell-level performance issues.

This role reports to the Lead - Cell Testing and coordinates closely with R&D, Quality and Engineering teams to identify and resolve cell-level performance issues. The role requires working in a 3-shift rotational schedule to support continuous cell testing operations.

Key Responsibilities:

1. Test Planning & Execution

• Test Planning: Plan and conduct electrical, performance, reliability, and safety testing of lithium-ion battery cells as per approved test protocols.
• Test Conditions: Define test conditions, cycling profiles, and acceptance criteria in line with product and validation requirements.
• Equipment Operation: Operate and manage battery cyclers and cell testing equipment (e.g., Neware, Arbin) to execute test plans accurately.

2. Data Analysis & Reporting

• Performance Analysis: Analyze battery test data, including voltage, current, capacity, energy, SOC, SOH, C-rate, DCIR, ACIR, OCV, and cycle life, to assess cell performance.
• Technical Reporting: Identify cell performance abnormalities and deviations, and prepare technical reports summarizing test findings and conclusions.
• Data Tools: Use tools such as Python, MATLAB, Excel, or LabVIEW for structured test-data analysis and visualization.

3. Cross-Functional Coordination

• Issue Resolution: Coordinate with R&D, Quality, and Engineering teams to identify, investigate, and resolve cell-level performance issues.
• Root-Cause Support: Support root-cause analysis for test failures and abnormal cell behavior, contributing technical inputs from a testing perspective.
• Standards Compliance: Ensure test protocols and charging/discharging conditions align with battery standards such as IEC, ISO, and UN 38.3, and applicable safety standards.

4. Safety & Compliance

• Safety Adherence: Ensure strict adherence to electrical and laboratory safety procedures for lithium-ion cell handling and testing.
• Documentation: Maintain test documentation, traceability and equipment calibration records in line with quality requirements.
• Shift Operations: Support safe, continuous 3-shift rotational testing operations, ensuring consistent test execution and handover across shifts.

Qualifications:

Bachelor's degree in Electrical Engineering, Electrical & Electronics Engineering, or a related field.

Location:

Based out of Navi Mumbai, Maharashtra.

Experience:

• 5+ years of experience in lithium-ion battery cell testing and validation.
• Strong understanding of lithium-ion battery cell characteristics and electrical behavior.
• Hands-on experience with battery cyclers and cell testing equipment.
• Experience analyzing battery test data and identifying cell performance abnormalities.
• Knowledge of battery charging/discharging protocols, test conditions, and applicable battery standards (IEC, ISO, UN 38.3).

Skills & Competencies:

• Good understanding of key battery test parameters (Voltage, Current, Capacity, Energy, SOC, SOH, C-rate, DCIR, ACIR, OCV, cycle life).
• Strong troubleshooting, analytical, and problem-solving skills.
• Proficiency with Python, MATLAB, Excel, LabVIEW, or similar tools for test-data analysis.
• Sound understanding of electrical and laboratory safety procedures for lithium-ion cells.
• Effective cross-functional coordination and technical reporting skills.
• Willingness and ability to work in a 3-shift rotational schedule.