At the 2024 NBAA-BACE convention in Las Vegas, True Blue Power was showing its new TB50 50-amp engine-start battery. A drop-in replacement for the 44-amp battery found in many small turbines, the new lithium-ion provides more power and weighs 50 percent less than lead-acid and NiCad batteries, plus it has an 8-year life and on-condition maintenance. Aviation Consumer Editor in Chief Larry Anglisano took a look at the battery with True Blue’s Van Winter.