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PAR Systems Obtained First Ever Qualification for Aircraft Battery Lockers

May 13, 2015


SHOREVIEW, Minn.–PAR Systems, Inc. (, a world leader in aerospace manufacturing, material handling, automation, and robotic solutions since 1961, announced today that Marine Systems Technology Ltd. (MST), a subsidiary of PAR Systems, Inc., has been obtained the first ever qualification for Aviation Lithium-Ion Battery Charging and Storage Lockers for UK Queen Elizabeth Class Aircraft Carriers (QEC). The QEC Lithium-Ion Battery Charging & Storage Lockers were designed to house and store a variety of Lithium-Ion aircraft batteries of various types, sizes, and shapes.


Two tests were conducted for this qualification: 75 minutes at 80 kW heat flux, and a further extreme ‘overtest’ for 8 minutes at an average 207 kW heat flux.


The system exceeded expectations at 80 kW and at 207 kW, which is >250% above the average heat flux the Li-ion battery can generate under ‘heat excursion’ conditions.


The temperature in the other compartments only reached 19.5°C (67°F) at the highest point during the test while pass criteria allowed up to 115°C (239°F). The 2nd ‘overtest’ again revealed excellent thermal properties with the maximum temperature of 33°C (91°F) recorded in adjacent compartments – some 82°C (180°F) below the test acceptance criteria.


The outside of the cabinet was cool to the touch during testing and the system remained fully functional post test.


The battery lockers use COMFIRE® originally developed by Marine Systems Technology, a PAR Systems company. COMFIRE® is a fire-proof lightweight, non-combustible material that is non-carcinogenic and can be recycled. Find out more about COMFIRE® at


About PAR Systems

PAR Systems, a portfolio company of MML Capital Partners (, is a world leader in providing advanced intelligent solutions for critical material handling, automation, and robotic applications that drive customer quality, safety, and productivity. Since 1961, PAR has created fully integrated systems, which are often first-of-a-kind manufacturing solutions, for a broad range of industries including aerospace, hazardous material/nuclear, life science and process automation, marine/defense, heavy material handling, and industrial. Headquartered in Minnesota, PAR Systems has global engineering and manufacturing centers of excellence. For more information on PAR Systems, visit



PaR Systems

Daren Pietsch, +44 (0) 1606 841333

MST General Manager

[email protected]