The FAA has issued supplemental type certificates for True Blue Power’s TB44 lithium-ion batteries on Cessna 208 and 208B Caravans and Bombardier Dash 8-100, -200 and -300 turboprops. According to True Blue (Booth 2050), the TB44 offers operational and performance improvements over nickel-cadmium or lead-acid batteries, including triple the energy per kilogram; double the lifespan; more rapid recharge; cooler and cleaner engine restarts; superior high temperature and cold weather performance; reduced weight maintenance cost and direct operating cost; and zero carbon emissions.

“Whether carrying cargo for Federal Express, medical supplies in Africa, fishermen in Alaska or fare-paying passengers in Canada, Caravan and Dash 8 operators around the world require consistent and reliable power,” said True Blue Power director Rick Slater. “The TB44 delivers that and more.”

There is controversy surrounding the use of lithium-ion batteries, following the FAA’s grounding of all Boeing 787s in January 2013 due to two cases of fire caused by so-called thermal runaway. The issue forced Boeing to develop modifications to the charging system and install containment and venting systems. Since then, safety improvements have led to growing acceptance of their use among government regulators, aircraft manufacturers and operators.