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Concorde RG-390E Aircraft Battery

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Part# 11-11384
MFR Model# RG-390E


The recombinant gas RG® Series VRLA-AGM batteries are known for superior starting power with quick, cool operation in all conditions without the threat of thermal runaway. Less initial cost than NiCd, no deep cycling, and maintenance free design reducing operating costs per hour. Concorde recombinant gas valve regulated lead acid batteries for engine starting, emergency / essential power, and standby power applications are constructed with cutting edge Absorbed Glass Mat (AGM) technology. Concorde’s proprietary PolyGuard™ Microporous Polyethylene Separator shields the positive plates against shorting, shock or vibration.
  • Certified nickel cadmium battery replacement
  • OEM and certified on many models from fixed wing to rotor
  • Reliable essential power in the event of a generator failure
  • Low impedance design
  • Maintenance free AGM Battery
  • Constructed with non removable vent valves - no addition of electrolyte or water required
  • Aerobatic: Non spillable at any altitude or attitude
  • Factory tested to assure airworthiness
RG-390E is a polypropylene battery with side vent tubes and a powder coated aluminum cover with hold down bar.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Primary Aircraft Purpose: Turbine Starting Aircraft Battery
  • Voltage: 24v
  • Rated Capacity C1 = 1 hr. rate in ampere hours: 28.00
  • Max Weight: 62.00 lb / 28.1 kg


great product

November 4, 2019

These are great batteries! We have been using them for years in our Airbus AS350 helicopters (we have the tail boom battery modification). They typically last for about 2-3 years on aircraft that fly about 1000 hours per year.

March 27, 2019


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Does the RG-390E battery come with the STC required to install it in an Emb Phenom 100 EMB 500 or does the STC need to be purchased separately?

Concord owns the STC for this battery to be used on this airframe, so you would just request the STC from Concorde directly when you get the battery. Concorde has a request form.

Q: What battery minder do you recommend with this Concorde RG-390E battery?

244CEC1-AA-S5 (our part number 11-14352.)

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