Lithium-ion Aircraft Battery
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Reduce your aircraft battery weight by 40% with the TB44 Advanced Lithium-ion Aircraft Battery. Less weight means more passengers, more cargo, more fuel and more design flexibility. The True Blue Power lithium-ion battery is TSO certified, offers 2-year maintenance intervals, and lasts 8 years — 4x longer than lead-acid and NiCad batteries. A built-in heater ensures superior cold weather performance, down to -40°C.
Get started with certified lithium-ion aircraft batteries
Start Lighter
True Blue Power batteries are the lightest and most compact, saving you up to 85 pounds per battery. Our efficient design gives you more power per pound than any other aircraft battery. Less weight means more passengers, more cargo, more fuel, and more design flexibility.
Start Faster
True Blue Power batteries give you cooler and faster engine starts, capable of 7 starts in 7 minutes. Turboprop engines, like the Pratt & Whitney PT6A, start in half the time and, typically, 100° cooler. Our sophisticated design allows your battery to fully recharge within 30 minutes and constant voltage helps eliminate hot starts. An automatic, built-in heater ensures your aircraft outperforms all others in extreme temperatures, from -40°C to +70°C.
Start Smarter
True Blue Power batteries feature overcharge, over-discharge, over-current, short circuit, over-temperature, and under-temperature protection. Even smarter, you’ll save time and money with the longest-lasting aircraft batteries on the market. True Blue Power batteries last 8 years. That’s up to 4x longer than lead acid and NiCad.
- 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 in 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
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
Product Comparison |
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| Model Number | TB44 | TB40 | TB50 | |
| Part Numbers | 6430044-2, 6430044-4 | 6430040-1, 6430040-2 | 6430050-1 | |
| Capacity | 46 amp-hour nominal (at 23°C/73°F) |
40 amp-hour nominal (at 23°C/73°F) |
50 amp-hour nominal (at 23°C/73°F) |
|
| Weight | 51.7 lbs. (23.4 kg) | 36.6 lbs. (16.7 kg) | 43.9 lbs. (19.9 kg) | |
| Charge Voltage | 28 VDC nominal | 28 VDC nominal | 28 VDC nominal | |
| Output Voltage | 26.4 VDC nominal | 26.4 VDC nominal | 26.4 VDC nominal | |
| Output Current | 750A continuous (1500A max) | 525A continuous (1500A max) | 460A continuous (1500A max) | |
| Recharge Time | 15 minutes to fully recharge when battery is fully discharged |
Configurable Charge Current Limiting: 15 minutes to fully recharge when configured for max charge current |
Configurable Charge Current Limiting: 15 minutes to fully recharge when configured for max charge current |
|
| Dimensions | 10.9" L x 11.7" W x 10.1" H | 9.1" L x 14.4" W x 8.9" H | 10.0" L x 9.6" W x 10.1" H | |
| Protection | Overcharge, over-discharge, over-current, short circuit, over-temperature and under-temperature |
Overcharge, over-discharge, over-current, short circuit, over-temperature, under-temperature and charge current limiting |
Overcharge, over-discharge, over-current, short circuit, over-temperature, under-temperature and charge current limiting |
|
| Technology | Advanced NanoPhosphate® lithium-ion cell chemistry | Advanced NanoPhosphate® lithium-ion cell chemistry | Advanced NanoPhosphate® lithium-ion cell chemistry | |
| Energy Density | 52.0 Wh/kg (64.6 Wh/liter) | 63.2 Wh/kg (73.0 Wh/liter) | 66.3 Wh/kg (83.1 Wh/liter) | |
| Battery Life Expectancy | 8 years (average) | 8 years (average) | 8 years (average) | |
| Communication | Serial, Discrete, RTD (ARINC 429 data to the cockpit) |
Built-in Test (BIT) Indicator ARINC 429, Analog, Discrete, RTD |
Built-in Test (BIT) Indicator ARINC 429, Analog, Discrete, RTD |
|
| Maintenance | Two-year intervals | On-Condition: Service indicated via Discrete output, LED indication and ARINC 429 |
On-Condition: Service indicated via Discrete output, LED indication and ARINC 429 |
|
| Operating Temperature | -40°C to +70°C (-40°F to +158°F) | -40°C to +70°C (-40°F to +158°F) | -40°C to +70°C (-40°F to +158°F) | |
| Configuration | 19P8S 1 parallel x 8 in series x 19 |
16P8S 4 parallel x 8 in series x 4 |
21P8S 7 parallel x 8 in series x 3 |
|
| Case | Powder-coated steel, blue | Anodized aluminum, blue | Anodized aluminum, blue | |
| Connection | MS3509 Quick Disconnect, Mil Circular for communications | MS3509 Quick Disconnect, Mil Circular for communications | MS3509 Quick Disconnect, Mil Circular for communications | |
| Certification | FAA TSO-C179a ETSO-C179a RTCA DO-311 RTCA DO-160G UNDOT/IATA |
FAA TSO-C179b (Class A-4B) RTCA DO-311A RTCA DO-160G RTCA DO-178C DAL A UNDOT/IATA |
FAA TSO-C179b (Class A-4B) RTCA DO-311A RTCA DO-160G RTCA DO-178C DAL A UNDOT/IATA |
|
| Warranty | Two-year (limited) | Two-year (limited) | Two-year (limited) | |
