Quote Originally Posted by turbopilot View Post
Based on the Concord Battery website, I am not sure that lithium batteries are quite ready for widespread aircraft application. Remember we are literally sitting on this battery in the Carbon Cub.

Limitations:
  • Requires protection circuit to maintain voltage and current within safe limits. Protection circuitry involves both additional hardware and software.
  • On aircraft battery monitoring and alarms will be required for safe operation.
  • Subject to aging, even if not in use - storage in a cool place at 40% charge reduces the aging effect.
  • Transportation restrictions - shipment of larger batteries may be subject to regulatory control.
  • Expensive to manufacture - about 40 percent higher in cost than nickel-cadmium.
  • Not a fully mature chemistry - metals and chemicals are changing on a continuing basis.
  • Extremely flammable electrolyte.
Thanks for the research. I noted also: "The lithium-ion main aircraft battery will not be a retrofit battery. In order to assure safe operation, the lithium-ion battery must be integrated into the control software and electronics of the aircraft system. Redundant safety systems built into the aircraft as well as into the battery are required to control the lithium-ion battery. With adequate protection systems and monitoring, the battery will provide reliable power for the aircraft of the future. "

To me it looks like Cubcrafters would have to make some hardware changes to accommodate the battery. I wonder if CC is aware of this technology?