Aviation

TB40

Advanced Lithium-ion Battery

The TB40 lithium-ion aircraft battery offers on-condition maintenance and is configurable to meet the needs of each specific aircraft, including charge current limit, end-of-life capacity, minimum dispatch capacity and engine-start readiness. The intelligent battery systems communicate real-time, reliable and accurate state of charge and state of health. The TB40 weighs up to 60% less, and delivers more amps per pound, than any other battery. This translates into more power for engine starts, more energy for emergency and back-up power, ultra-fast recharge and much longer life. View all Products Request Pricing

Features

40 amp-hour nominal at 23°C/73.4°F
Weighs 38.5 lbs. — up to 60% less than lead-acid and NiCad solutions
Advanced NanoPhosphate^® lithium-ion cell chemistry
Higher voltage during engine start — Less wear, less maintenance and increased useful life
Superior high-temperature and cold-weather performance from -40°C to +70°C (-40°F to +158°F)
More than 1 amp-hour per pound
Automatic internal heater
Overcharge, over-discharge, over-current, short circuit, over-temperature, under-temperature and charge current limiting protection
Built-in Test (BIT) Indicator communicates real-time state-of-charge and state-of-health
On-condition maintenance
Designed and built in Wichita, Kansas, USA
2-year limited warranty

Specifications
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Specifications

		Product Comparison
Model Number	TB40	TB20	TB30
Part Numbers	6430040-1	6430020-1	6430030-1
Capacity	40 amp-hour nominal (at 23°C/73.4°F)	20 amp-hour nominal (at 23°C/73.4°F)	30 amp-hour nominal (at 23°C/73.4°F)
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	1120A continuous (1500A max)	560A continuous (960A max)	840A continuous (1440A max)
Technology	Advanced NanoPhosphate^® lithium-ion cell chemistry	Advanced NanoPhosphate^® lithium-ion cell chemistry	Advanced NanoPhosphate^® lithium-ion cell chemistry
Energy Density	60.5 Wh/Kg	58.2 Wh/Kg	61.3 Wh/Kg
Charge Current Limiting	Programmable up to 4C or 10C unlimited	Programmable up to 4C or 10C unlimited	Programmable up to 4C or 10C unlimited
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)
Weight	38.5 lbs.	20.0 lbs.	28.5 lbs.
Dimensions	9.1" L x 14.7" W x 8.8" H	9.1" L x 8.6" W x 8.8" H	12.5" L x 8.6" W x 8.8" H
Configuration	16P8S; 4 parallel x 8 in series x 4	8P8S; 4 parallel x 8 in series x 2	12P8S; 4 parallel x 8 in series x 3
Battery Life Expectancy	8 years (average)	8 years (average)	8 years (average)
Maintenance	On-condition	On-condition	On-condition
Case	Anodized aluminum, blue	Anodized aluminum, blue	Anodized aluminum, blue
Certification	FAA TSO-C179b (pending) RTCA DO-311A (pending) RTCA DO-160G (pending) RTCA DO-178C DALA (pending) UNDOT/IATA (pending)	FAA TSO-C179b (pending) RTCA DO-311A (pending) RTCA DO-160G (pending) RTCA DO-178C DALA (pending) UNDOT/IATA (pending)	FAA TSO-C179b (pending) RTCA DO-311A (pending) RTCA DO-160G (pending) RTCA DO-178C DALA (pending) UNDOT/IATA (pending)