Thumbs 1
Thumbs 1

Concorde RG28-7 Aircraft Battery

Add to Wishlist
Part# 11-11613
MFR Model# RG-28-7


The RG-28-7 is a Concorde Platinum Series Aircraft Battery. The Platinum Series is comprised of premium hand made AGM Aircraft Batteries with excess power for many applications.
  • C1 @ 23C (74F) = 9.0 Ah
  • C1 @ -18C (0F) = 6.6 Ah
  • C1 @ -30C (-22F) = 4.3 Ah
Avionics Battery for lighting, standby, emergency power. Protects and extends the life of other avionics. Concorde's Emergency Batteries float directly on the DC buss with no need for a dedicated charger. This results in a high inrush current which extends battery life with fast recovery time from discharge. With the battery floating directly on the buss, transient spikes in the DC power are absorbed. These batteries are self regulating on charge and will take only the current required to maintain it at full charge.

Features include:
  • Volt Meter
  • Test Button

Recombinant Gas - The RG Series are low resistance, valve regulated lead acid (VRLA) batteries.
  • Maintenance free
  • Constructed with non removable vent valves no addition of electrolyte or water required
  • Factory tested to assure airworthiness
  • Manufactured with absorbed glass mat separators (AGM)
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Primary Aircraft Purpose:Emergency Aircraft Battery
  • Voltage:28v
  • Rated Capacity C1 = 1 hr. rate in ampere hours: 9.00
  • Max Weight: 30.00 lb / 13.6 kg



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: What is specification for terminal lug for RG28-7 battery?

The terminals are as follows: 1 each 6-32 Screw and 1 each 8-32 female terminal with corresponding sized cap screws.

View in Catalog

View Image View in Catalog