About the role#
This is a full-time, paid internship for Summer 2027. You will work within our product engineering team to evaluate battery cell technologies and support our research into energy storage. This position follows a hybrid work model, requiring you to be in the Milwaukee area.
What you'll do#
- Investigate and evaluate potential battery cell suppliers and new energy storage technologies.
- Work with cell chemistries including Li-Ion, Na-Ion, and UCaps.
- Perform cell teardowns to analyze mechanical designs and chemical compositions.
- Help create test plans and monitor cell testing activities.
- Partner with the cell test team to coordinate testing and collect performance data.
- Analyze test results to create reports, presentations, and data visualizations.
- Collaborate with engineering and cross-functional teams to identify technologies that meet customer requirements.
- Compare cell designs to determine performance, quality, and application fit.
- Review and summarize technical reports from suppliers.
- Document teardown observations and assist with validation planning for customer projects.
What you'll need#
- Current enrollment as a full-time student at an accredited U.S. college or university.
- Pursuit of an undergraduate degree in Chemistry, Chemical Engineering, Electrochemistry, or Materials Science.
- Ability to work in the greater Milwaukee area during the summer.
- Authorization to work in the U.S. without the need for sponsorship.
Location & details#
- Location: Milwaukee, Wisconsin.
- Term: Summer 2027.
- Modality: Hybrid.
About Clarios
Clarios produces advanced battery technologies for various vehicle types. The company operates within the motor vehicle parts manufacturing industry. It manufactures over 150 million batteries each year. This output accounts for one-third of the global industry production. The firm is based in Glendale, Wisconsin, and employs over 10,000 people.
How to get in at Clarios
Applying early to Clarios gives you a distinct advantage because recruiters review applications before the pile grows. Intern Insider sends an instant alert the moment a role matching your target is published, helping you secure a spot at the front of the line. It is a practical way to ensure you do not miss out on new openings. You can also improve your response rates by reaching out to the recruiters behind these roles directly. Intern Insider surfaces the specific people managing the hiring process so you can ask about the role or a referral. This direct approach often works better than sending your resume into a queue.


