True Blue Lithium-Ion Battery

All Additional Upgrades

True Blue Lithium-Ion Battery

Increased performance, lower costs

The True Blue TB44 Advanced Lithium-ion Battery uses the most sophisticated lithium-ion chemistry available, providing aviators with the unmatched advantage of faster starts, increased power, reduced weight, extended useful life, and lower direct operating costs.

Coming Soon for King Air 200

Upgrades Available For

  • Caravan
  • Grand Caravan
  • King Air 350/350ER

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  • Higher voltage during engine start leading to less wear, less maintenance, and increased useful life
  • Faster engine starts – 7 starts in 7 minutes – and only 15 minutes for a complete recharge when the battery is fully discharged on a typical aircraft.
  • Superior high and low temperature performance (-40°C/-40°F to +70°C/158°F)
  • Delivers 3x the energy per kilogram when compared to lead-acid and nickel-cadmium cells
  • Protection against overcharge, over-discharge, over-current, short circuit, over-temperature, and under-temperature
  • Reduced maintenance costs
  • 8-year average useful life
  • Increased useful load between 29 and 32 lbs.


  • Capacity: 46 amp-hour battery nominal at 23°C (73.4°F)
  • Weight: 51.7 lbs. (up to 38% lighter than lead-acid and NiCad alternatives)
  • Advanced NanoPhosphate® lithium-ion cell chemistry from A123 Systems, LLC – offering 3 times the energy per kilogram, resulting in a battery that is 40% lighter than lead-acid or nickel-cadmium alternatives
  • Built-in automatic internal heater
  • Communication: ARINC 429 data to the cockpit
  • Maintenance: 2-year maintenance interval; offers 50-90% savings on maintenance costs
  • Warranty: 2-year limited


Contact us today to learn how the True Blue Lithium-Ion Battery saves money while boosting aircraft performance, reliability, and income earning potential.