The objective of this activity is to develop, design, manufacture and test a battery with European Commercial Off The Shelf (COTS) battery cells for telecom space applications. Targeted Improvements:- At least 20% mass reduction at battery level;- Enabling European independency and continuity of technology sourcing. Description: Current state-of-the-art space Li-Ion cell technology can provide around 180 Wh/kg, while Li-Ion COTS cell technology can provide 230 Wh/kg. Replacing the current space Li-Ion cell in the battery by a COTS Li-Ion cell will enable at least a 20% mass reduction. The telecommunications market requires a reliable cell selectionprocess to ensure that the selected COTS battery cell will be suitable for the mission. A European COTS battery cell is mass-produced under European control from its raw material management to its delivery.A scaled engineering model of a battery based on such European COTS cells will be developed, manufactured and tested. A methodology for cell selection, procurement, and testing will alsobedefined for low cost commercial satellite communication applications.Procurement Policy: C(1) = Activity restricted to non-prime contractors (incl. SMEs). For additional information please go to EMITS news "Industrial Policy measures for non-primes, SMEs and RD entities in ESA programmes".Footnote: On Delegation Request activities will only be initiated on the explicit request of at leastone National Delegation.