TB44

Advanced Lithium-ion Battery

TS835

The TB44 Advanced Lithium-ion Battery is engineered to deliver 40% weight savings and an overall lower cost of ownership, with 50–90% less scheduled maintenance cost, 2-year maintenance intervals, efficient engine starts and 2-3x longer useful battery life. The TB44 is ideal for the turbine market, including fixed-wing, rotorcraft, and emergency power applications.

Maintenance Software

PuTTY

Features

  • 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
  • 6 – 10 years useful life
  • Designed and built in Wichita, Kansas, USA
  • 2-year limited warranty
  • 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 from A123 Systems, LLC — 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

The Nanophosphate® Lithium-ion Advantage

Learn More
Power

Superior power by weight or volume in a cost effective solution

Safety

Nanophosphate® is stable chemically, providing the foundation for safe systems

Life

Excellent calendar and cycle life with consistent performance over extended use

Energy

Higher useable energy means greater battery utilization and lower cost

Product Comparison

Model Number Battery Technology Voltage Output Capacity (1C rate) Weight Maintenance Useful life
TB44 Lithium-ion 26.4 VDC 46 amp-hour 51.7 lbs 2 years 6 – 10 years
Lead-acid 24 VDC 42 amp-hour 92 lbs. Annual 2 – 4 years
Nickel-cadmium 24 VDC 44 amp-hour 80 lbs. 200 – 400 hours 5 – 10 years

Technical Specifications

Capacity 46 amp-hour battery nominal at 23°C/73.4°F
Charge Voltage 28 VDC nominal
Output Voltage 26.4 VDC nominal
Output Current 750A continuous, 1500A max
Technology Advanced Nanophosphate® lithium-ion cell chemistry from A123 Systems, LLC
Protection Overcharge, over-discharge, over-current, short circuit, over-temperature and 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. (23.5 kg)
Dimensions 10.9” L x 10.5” 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
Useful life 6 – 10 years
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