Maintenance and Modifications
Concorde STCs Lighter Battery for Citation Mustang
This replaces the OEM battery with a 30-ampere hour drop-in replacement that is five pounds lighter.

Concorde Battery received FAA STC approval for its “advanced” lead-acid RG-390E/30 battery on the Cessna Citation Mustang. This replaces the OEM battery with a 30-ampere hour drop-in replacement that is five pounds lighter.