Lithium-ion Aircraft Battery

Part Number
6430044-4
Model Number
TB44
Manufacturer
Mid-Continent Instruments and Avionics
Technical Description
26.4 VDC, 46 Ah, No handles, Lithium-ion, TSO
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Benefits and Specifications
Benefits
  • 46 amp-hour battery nominal at 23°C/73.4°F
  • Weighs 51.7 lbs. — 40% lighter than lead-acid or nickel-cadmium alternatives
  • Advanced Nanophosphate® lithium-ion cell chemistry — 3x the energy per kilogram when compared to lead-acid and nickel-cadmium cells
  • 7 engine starts in 7 minutes
  • 15 minutes for complete recharge when the battery is fully discharged on a typical aircraft
  • Superior performance at extreme temperatures (-40°C/-40°F to +70°C/+158°F)
  • Automatic internal heater
  • Overcharge, over-discharge, over-current, short circuit, over-temperature and under-temperature protection
  • Communicates ARINC 429 data to the cockpit
  • Higher voltage during engine start — Less wear, less maintenance and increased useful life
  • 2-year maintenance interval —50 – 90% savings on maintenance costs
  • Designed and built in Wichita, Kansas, USA
  • FAA TSO Certified
  • Two-year limited warranty
Specifications

Capacity
46 amp-hour nominal at 23°C/73.4°F

Charge Voltage
28 VDC nominal

Output Voltage
26.4 VDC nominal

Output Current
750 A continuous, 1500 A max

Technology
Advanced NanoPhosphate® lithium-ion cell chemistry

Protection
Overcharge, over-discharge, over-current, short circuit, over-temperature, under-temperature

Energy Density
52.0 Wh/kg
64.6 Wh/liter

Operating Temperature
-40°C to +70°C (-40°F to +158°F)

Weight
51.7 lbs. (23.4 kg)

Dimensions
10.9” L x 11.7” W x 10.1” H

Configuration
8S19P; 8 series cells x 19 parallel modules

Maintenance
2-year maintenance interval; offers 50 – 90% savings on maintenance costs

Battery Life Expectancy
8 years (average)

Case
Powder-coated steel, blue

Certification
FAA TSO certified to C179a
ETSO certified to C179a
RTCA DO-311 qualified
RTCA DO-160G qualified
UNDOT/IATA qualified

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TB44 Supplemental Type Certificates (STCs)

Select your aircraft manufacturer from the dropdown menu to view a list of applicable TB44 Lithium-ion Battery STCs.

Manufacturer: Beechcraft Corporation (Textron Aviation Inc.)

STC Number Aircraft Model
SA04303CH
  • King Air 350

Manufacturer: Cessna Aircraft Company (Textron Aviation Inc.)

STC Number Aircraft Model
SA01822WI
  • 208 / 208B

Manufacturer: De Havilland Canada

STC Number Aircraft Model
SA03899NY
  • Dash 6 100 / 200 / 300
ST03795NY
  • Dash 8 100 / 200 / 300

Manufacturer: Pilatus Aircraft Limited

STC Number Aircraft Model
SA01044DE
  • PC-12
  • PC-12/45
  • PC-12/47
  • PC-12/47E
  • PC-12/NGX