Concorde Battery Sealed RG-390E/LSH

The Concorde Battery RG-390E/LSH is a sealed, heated RG Series turbine aircraft battery component for engine-starting and emergency-power duties where specified by the approved aircraft installation data.

Built with valve-regulated lead-acid (VRLA) and absorbed glass mat (AGM) technology, this 24 V battery has a rated C1 capacity of 28 Ah. Concorde’s sealed recombinant-gas design does not require water replenishment during normal service. Proprietary PolyGuard® separators provide additional protection against shock and vibration.

• Manufacturer part number: RG-390E/LSH
• Nominal voltage: 24 V
• Rated capacity: 28 Ah at the C1 rate
• Heated battery configuration
• Fireproof stainless-steel container with vent tubes
• Approximate maximum weight: 29 kg
• Low-impedance design for starting-power performance

The RG-390E/LSH is a battery component requiring the applicable compatible Heater Control Unit (HCU) to form the complete battery assembly. Verify the precise HCU configuration, aircraft manufacturer part number, approved installation data, and continuing-airworthiness requirements before installation.

Relevant manufacturer documentation includes the RG-390E Heated Series brochure, RG Series Aircraft Battery Owner/Operator Manual (Document 5-0324), and Component Maintenance Manual CMM 5-0530.