BATTERIES: EnerSys ABSL space-qualified batteries to power ISS spacewalk electronics

ABSL Space Products (ABSL), a business unit of EnerSys, has delivered its batteries to the International Space Station (ISS). ABSL completed four high-energy density, long-life Li-ion battery assemblies that were designed, manufactured, and tested at its Longmont, Colo., facility.

The space-qualified battery assemblies were delivered to NASA Johnson Space Center for the Extravehicular Mobility Unit (EMU) program in 2010. The four battery assemblies were launched aboard shuttle Discovery on its last mission to rendezvous with the ISS, marking the second space launch of ABSL Colorado-built battery hardware.

The battery assemblies will replace older silver-zinc battery technology on the EMU for spacewalks from the ISS. Flexibility with battery configurations and ABSL’s ability to customize solutions for NASA enabled the Li-ion replacement batteries to operate within the existing space and electrical interfaces of the equipment. The energy density of ABSL’s battery assemblies will more than double the present run times of the older silver-zinc batteries, improving performance and increasing safety and reliability.

ABSL’s batteries are designed with multiple levels of redundancy that can maintain functionality under various failure scenarios to ensure safety is never compromised.


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February 2014
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