Assemble battery modules and racks according to schematics, ensuring precise cell-to-cell interconnects and thermal management placement.Perform capacity testing, cycle testing, and cell balancing using specialized battery analyzers and load banks.Calibrate and troubleshoot Battery Management Systems (BMS), including firmware updates and communication protocols (CAN bus, Modbus).Execute safe Lock-Out/Tag-Out (LOTO) procedures and utilize Insulated Tools for all high-voltage DC interventions.Inspect and maintain liquid or air-cooling systems integrated into battery enclosures.Perform root-cause analysis on degraded or failed battery packs, including identifying 'hot spots' or insulation resistance faults.Diagnose electrical malfunctions using multimeters, oscilloscopes, and circuit analyzers to identify root causes and implement corrective actions.Maintain accurate logs of work performed, including inspection reports, material usage, and system blueprints.Recommend and implement equipment upgrades to improve energy efficiency and performance.Install, test, and maintain energy storage systems and related electronic components.Diagnose and repair faults in battery management systems (BMS), inverters, and control circuits.Perform routine inspections and preventive maintenance.Assist in system commissioning and performance validation.Interpret technical drawings, schematics, and manuals.Ensure compliance with safety and quality standards.