Cessna 337 Super Skymaster
Flight Crew Student
Flight Crew Last 90 Days 59.6; Flight Crew Total 157.6; Flight Crew Type 28.3
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Other / Unknown
Flight Crew Overcame Equipment Problem
Aircraft
About 20 mins before we landed both of the Alternator lights lit up indicating that we were then running on battery power. We turned off all equipment that we could.  Our GPS and primary radio turned off on their own.  We used an iPad and a hand-held radio to communicate. Although it was night; we were both familiar enough with the area to get to the airport without any navigation device. It was at night and all our external lights were not on.  We were able to talk to a plane on the taxiway and confirmed that the runway was available and clear of any other aircraft.Without power we could not operate the flaps. We were able to activate our landing gear with it's switch; and were able to get enough power to see the landing gear down light activate for a moment. We were prepared to manually deploy the gear but we were confident that it was down on its own.Thanks to a strong headwind; and the long runway we were able to land safely on the ground.
C-337 student pilot reported a dual Alternator failure inflight. Aircraft landed without incident.