Concorde Battery Sealed RG-390E/25LS

The Concorde RG-390E/25LS is a Platinum Series sealed recombinant-gas (RG) aircraft battery designed by Concorde for turbine starting duty. It uses valve-regulated lead-acid Absorbed Glass Mat (AGM) technology and provides a 24 V nominal output with a rated C1 capacity of 25 Ah.

This RG-390E/25LS configuration features a fireproof stainless-steel container, vent tubes and a temperature-sensor mounting pad. Its sealed, maintenance-free design does not require water replenishment. Concorde specifies proprietary PolyGuard® separators to provide added protection against shock and vibration.

• Manufacturer: Concorde Battery Corporation
• Manufacturer part number: RG-390E/25LS
• Series: Concorde Platinum Series®
• Nominal voltage: 24 V
• Rated capacity: 25 Ah at the 1-hour rate (C1)
• Battery technology: Valve-regulated lead-acid, AGM
• Container: Fireproof stainless steel
• Maximum weight: 25.9 kg
• FAA TSO-C173 authorised, as stated in Concorde manufacturer literature

For continued airworthiness, handling, installation and maintenance instructions, consult the applicable Concorde documentation, including CMM 5-0171 and the RG Series Aircraft Battery Owner/Operator Manual. Verify the required part number and approved installation data for the specific aircraft before installation.