Bachelor Thesis / Internship: Lithium Battery Pack Benchmarking (m/f/d)

About Us

BOS Balance of Storage Systems AG is a medium-sized company specializing in innovative solutions in the fields of electrical engineering, precision engineering, and optics. With an interdisciplinary team, we develop advanced energy storage and management systems, with a focus on quality and precision. Our products are characterized by high reliability and technological excellence, enabling them to meet the growing demands of modern applications. We place great emphasis on sustainable technologies and future-oriented developments in the field of battery management systems.

Join our Battery Systems Engineering team and get hands-on experience with commercial lithium-ion battery packs. You will test, tear down, analyze, and compare real-world products to identify best practices in performance, safety, thermal management, BMS functionality, cyber security and manufacturing quality.

Your Tasks:

• Develop a structured battery pack benchmarking methodology
• Test and compare commercial battery packs in the laboratory
• Evaluate electrical performance, efficiency, and power capability
• Assess thermal behavior and safety features
• Analyze Battery Management Systems (BMS) and communication security features
• Perform teardown and reverse-engineering investigations
• Compare design concepts, manufacturing quality, and cost drivers

What You Bring:

• Enrolled in Electrical Engineering, Mechatronics, Automotive Engineering, Energy Systems, Mechanical Engineering, or a related field
• Interest in battery technologies and energy storage systems
• Basic understanding of electrical measurements and data analysis
• Independent and structured working style
• Experience with Python, CAN communication, or battery testing is a plus

What You Will Gain:

• Hands-on experience with state-of-the-art battery systems
• Access to professional battery testing laboratories
• Exposure to battery pack development and reverse engineering
• Insights into competitor products and industry best practices
• Close collaboration with experienced battery engineers

Thesis Focus Areas:

Battery Performance Testing - Thermal Analysis - Battery Management Systems (BMS) - Safety and Reliability - Mechanical Design Assessment - Reverse Engineering - Competitor Benchmarking

Wir bieten:

• Fair compensation
• Innovative work environment
• Agile culture: Quick decision-making, independent work
• Flexibility: Hybrid work, flexible hours
• Modern work environment
• Colleague-oriented teamwork, open communication, and flat hierarchies

Ready to take our team to the next level?

Then we look forward to receiving your complete application materials (resume, relevant certificates, earliest possible start date) at [email protected].

Job Types: Part-time, Temporary, Internship
Contract length: 6 months

Pay: 15,00€ per hour

Expected hours: 16.0 – 20.0 per week

Work Location: Hybrid remote in 89081 Ulm