The Defense Logistics Agency seeks potential sources to supply a specific rechargeable battery (BB-2001 AU CSEL, Part Number BT-70581CE) for the CSEL radio. The government possesses and will conditionally release the technical data package for the part. This is a sources sought notice for market research only and is not a request for quotes or proposals. Interested companies must submit capability information, including a questionnaire and description of recent relevant efforts, via email. Responses are requested by February 20, 2026.