RG380E/53L - Concord Sealed VRLA Lead Acid Aircraft Battery SPA67

RG-380E/53L – Concorde Sealed VRLA Lead Acid Aircraft Battery SPA67

Available now on the Airparts.aero Marketplace.

Overview

The Concorde RG-380E/53L is a premium, maintenance-free, Recombinant Gas (RG®) sealed lead-acid battery, a flagship product from Concorde's Platinum Series® designed for high-demand turbine aircraft applications. This 24-volt, 48 Ah battery is engineered to provide exceptional starting power for turboprop and jet engines, as well as reliable essential and emergency standby power. Utilizing advanced Valve Regulated Lead Acid (VRLA) and Absorbed Glass Mat (AGM) technology, the RG-380E/53L offers a high-cranking, non-spillable, and aerobatic-capable power source that eliminates the servicing requirements and hazards of traditional flooded cell batteries. The "L" suffix indicates a specific configuration for certain airframes.

Key Features

• Recombinant Gas (RG®) Technology: A Valve Regulated Lead Acid (VRLA) design where oxygen and hydrogen gases produced during charging are recombined to form water within the battery. This eliminates the need for water replenishment and makes the battery truly maintenance-free.
  
• Absorbed Glass Mat (AGM): The electrolyte is fully absorbed into a matrix of microfiber glass mat separators. This spill-proof design allows the battery to be mounted in any orientation and renders it safe for aerobatic flight without the risk of acid leakage.
  
• Superior Turbine Starting Power: The low-impedance design, with tightly compressed plates and heavy-duty intercell connections, provides higher voltage under load than traditional flooded batteries. This delivers the immense current required for faster, cooler turbine engine starts, reducing stress on the starter-generator.
• Exceptional Durability: The AGM construction provides superior resistance to shock and vibration, as the plates are rigidly supported and cannot shed active material, a common failure mode in flooded-cell batteries subjected to the turbine environment.
• Ready for Installation: Shipped fully charged and factory-tested to assure airworthiness. As a sealed, non-spillable battery, it is exempt from HAZMAT shipping regulations under IATA/ICAO Special Provision A67 (SPA67).
  

Technical Specifications

• Part Number: RG-380E/53L
• Component Type: Sealed Lead-Acid (VRLA/AGM) Aircraft Battery
• Voltage: 24 VDC
• Rated Capacity (C1 Rate): 48 Ampere-Hours (Ah)
• Max Weight: 86.0 lbs (39.0 kg)
• Dimensions (L x W x H): 10.96 x 10.11 x 9.88 inches
• Terminal Type: Copper Alloy Terminals
• Certification: FAA-PMA / TSO-C173 Approved

Aircraft Compatibility

The Concorde RG-380E/53L is the specified high-performance battery for a wide range of corporate, utility, and special mission turboprop and light jet aircraft. It is imperative to consult the current Concorde eligibility list for specific applicability.

• Common Aircraft Platforms:
  • Textron Aviation:
  • • Beechcraft:
      STC: Valid in: USA-FAA, Europe-EASA, Canada-TCCA, Brazil-ANAC, Argentina-ANAC, India-DGCA
      STC Document: STC#SA01260WI
      FAA PMA Approval: FAA-PMA Supplement No. 73, dated 08/11/04
• • • • 100 Kingair
      • 1900 Airliner
      • 1900C Airliner
      • 1900D Airliner
      • 200 Super Kingair
      • 200C Super Kingair
      • 200CT Super Kingair
      • 200T Super Kingair
      • 300 Super Kingair
      • 300LW Super Kingair
      • 65-90 Kingair
      • 65-A90 Kingair
      • 65-A90-1 Kingair
      • 65-A90-2 Kingair
      • 65-A90-3 Kingair
      • 65-A90-4 Kingair
      • 99 Airliner
      • 99A & 99A (FACH)
      • A100 Kingair (U-21F)
      • A100-1 Super Kingair (U-21J)
      • A100A Kingair
      • A200 Super Kingair (C-12A & C-12C)
      • A200C Super Kingair (UC-12B)
      • A200CT (C-12D,FWC-12D, RC-12D,C-12F, RC-12G,RC-12H
      • A200CT (RC-12K)
      • A200CT (RC-12P)
      • A200CT (RC-12Q)
      • A99 Airliner
      • A99A Airliner
      • B100 Kingair
      • B200 Super Kingair
      • B200C (C-12F,UC-12F,UC-12M,C-12R)
      • B200T Super Kingair
      • B300 Super Kingair 350
      • B300C Super Kingair 350C
      • B90 Kingair
      • B99 Airliner
      • B99 Airliner
      • C90 Kingair
      • C90A Kingair
      • C99 Airliner
      • E90 Kingair
      • F90 Kingair
      • H90 (T-44A)
      • B200CT
    • Cessna:
    • • 680 Citation Sovereign
           STC: Valid in: USA-FAA
           STC: STC#ST04366AT
           FAA Supplement No 116, dd 05/30/17
           FAA Parts Manufacturing Approval - FAA-PMA Supplement No. 126, dd 5/15/19 and FAA TSO-C173
           Notes: RG-380E/53L (higher capacity option) and Temp Sensor 5-0121 assembly to replace nickel cadmium battery. 5-0121 included with STC purchase.
      • 525C (CJ4)
           STC: Valid in: USA-FAA, Europe-EASA
           STC Document: #SA00944DE
           FAA Parts Manufacturing Approval - FAA-PMA Supplement No. 126, dd 5/15/19 and FAA TSO-C173
           Notes: To replace original equipment lithium ion, nickel cadmium or lead acid main batteries - SA00944DE covers installation of various part numbers to allow for application specific capacity selection. RG-380E/60L (higher capacity option) and Temp Sensor 5-0121 assembly are required to replace nickel cadmium battery. 5-0121 included with STC purchase.
  • Embraer:
  • • EMB-505
         STC: Valid in: USA-FAA, Europe-EASA, Brazil-ANAC, Argentina-ANAC
         STC: SA00959DE
         FAA Parts Manufacturing Approval - FAA-PMA Supplement No. 126, dd 5/15/19 and FAA TSO-C173
         Notes: To replace lead-acid batteries - SA00959DE covers installation of various part numbers to allow for application-specific capacity selection. SA00959DE supersedes STC SA01703WI by way of having incorporated the part numbers covered by SA01703WI and expanding capacity options.
  • Gulfstream:
       STC: Valid in: USA-FAA, Europe-EASA
       STC: ST01097DE
       FAA Parts Manufacturing Approval - FAA Parts Manufacturing Approval - FAA-PMA No. 134 dated 12/22/2022
       Notes: ST01097DE includes kit 5-0730 that together with two RG-380E/53L replaces nickel cadmium batteries with Concorde sealed lead acid batteries. Kit comes with STC purchase.
  • • GV
    • GV-SP
  • And many other high-performance turboprop and light jet aircraft.

Applications

The RG-380E/53L is the heart of the aircraft's electrical system, designed for high-demand roles:

• Turbine Engine Starting: Provides the extremely high-amperage current required to spool up turboprop and light turbofan engines.
• Essential & Emergency Power: In the event of a generator failure, it serves as the primary source of electrical power for critical flight instruments, avionics, and lighting as specified by the aircraft's emergency procedures.
• APU Starting: Can provide the power needed to start the aircraft's Auxiliary Power Unit (APU).

Why Choose RG-380E/53L?

The Concorde RG-380E/53L offers a significant upgrade in performance, safety, and convenience over traditional flooded batteries. Its maintenance-free, non-spillable design eliminates the risk of acid spills that can cause severe airframe corrosion and removes the need for periodic watering and specific gravity checks. The superior starting power and proven reliability have made Concorde's RG® series the leading choice for aircraft manufacturers and operators of high-performance aircraft worldwide. For dependable starts and reliable emergency power, the RG-380E/53L is the premier sealed battery solution.

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The key to the Concorde RG-380E/53L's performance is the Recombinant Gas (RG®) cycle within its sealed, Valve-Regulated Lead-Acid (VRLA) design. During charging, electrolysis of water can occur, producing hydrogen at the negative plates and oxygen at the positive plates. In a traditional "flooded" battery, these gases are vented overboard, resulting in water loss. In the RG-380E/53L, the Absorbed Glass Mat (AGM) separators are intentionally not fully saturated with electrolyte, leaving open pathways. Oxygen generated at the positive plate travels through these pathways to the negative plate, where it reacts with the newly formed lead and sulfuric acid, effectively "recombining" to form water:

This process prevents water loss, allowing the battery to be sealed and maintenance-free, a critical advantage in modern aircraft.

Note: While maintenance-free, regular capacity checks are required as part of the aircraft's maintenance program to ensure continued airworthiness. Always use a temperature-compensating aircraft battery charger/maintainer to ensure maximum battery life. This battery is designed for turbine engine starting applications.RG380E/53L - BATTERY SEALED SPA67

Notice: Concorde Battery VRLA Compliance and Shipping Classification

All batteries manufactured by Concorde Battery Corporation — including the Concorde RG® Series, D8565 Series, Chairman® AGM Series, Lifeline® GPL Series, and Sun Xtender® PVX Series — utilize Absorbed Glass Mat (AGM) technology. These are Valve-Regulated Sealed Lead-Acid (VRSLA) batteries, commonly referred to as Valve Regulated Lead Acid (VRLA), Valve Regulated Batteries (VRB), Sealed Lead Acid Batteries (SLAB), or Recombinant Gas Lead Acid Batteries. They are non-spillable and sealed, with the electrolyte absorbed within the glass mat separator.

Regulatory Compliance

Concorde’s VRLA batteries have been rigorously tested and meet the following transportation safety standards:

• 49 CFR 173.159(f) & 173.159a – Vibration, pressure differential, and free-flowing acid tests (U.S. DOT)
• IATA Packing Instruction 872 – Vibration and pressure differential compliance
• IATA Special Provisions – A48, A67, A164, and A183
• IMDG Special Provisions – 238.1 and 238.2 (International Maritime Organization)

Each battery is securely packaged, short-circuit protected, and clearly labeled as “Non-Spillable.” As a result, Concorde VRLA batteries are exempt from U.S. DOT Hazardous Materials Regulations, IATA Dangerous Goods Regulations, and IMDG Code requirements.

Classification Summaries

• U.S. DOT:
  Exempt from hazardous material regulations under Non-Spillable classification, having passed required performance tests.
• IMO (International Maritime Organization):
  Exempt under IMDG provisions, provided batteries are properly secured and terminals are protected from short circuit.
• IATA (International Air Transport Association):
  Exempt under IATA guidelines. When shipped by air, terminals must be protected, and the Air Waybill must include the notation “Not Restricted” along with applicable Special Provision numbers as per Section 8.2.6.
• ADR (European Ground Transport):
  In accordance with ADR Special Provision 598, Concorde VRLA batteries are exempt when properly secured, protected against damage and short circuit, and free of external acid/alkali residue.

Final Clarification

This notice serves to inform all shippers and transporters that Concorde RG®, Chairman®, Lifeline®, and Sun Xtender® VRLA batteries are fully compliant with:

• DOT HMR49 Non-Hazardous Materials Classification
• IATA Special Provisions A48, A67, A164, A183 & Packing Instruction 872
• IMO IMDG Special Provisions 238.1 & 238.2

Therefore, these batteries are not restricted for shipment by air, sea, or ground and are officially exempt from hazardous material classification. All shipments must continue to comply with the packaging and labeling requirements specified by DOT, IATA, and IMDG to maintain exemption status.