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. Turboprop engines, like the Pratt & Whitney PT6A, start in half the time and, typically, 100° cooler. Our sophisticated design ensures your aircraft outperforms all others in extreme temperatures, from -20°C to +70°C.
Start Smarter
True Blue Power batteries feature charge current limiting, 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 maintenance-free aircraft batteries on the market. The TB28-12V requires no capacity checks and last 8 years. That’s up to 4x longer than lead acid and NiCad.
Benefits
- Delivers more power per pound than any other aircraft battery
- 13 amp-hour nominal at 23°C/73.4°F
- Weighs 12.2 lbs. (5.5 kg)
- Advanced iron phosphate lithium-ion cell chemistry
- Higher voltage during engine start — Less wear, less maintenance and increased useful life
- 35 minutes (at 28 amps average) for complete recharge when the battery is fully discharged
- Superior high-temperature and cold-weather performance from -20°C to +70°C (-4°F to +158°F)
- Overcharge, over-discharge, over-current, short circuit, over-temperature, under-temperature and charge current limiting protection
- Communicates battery status to the cockpit via RS-232, analog and discrete signals
- On-condition
- 8 years (average) life expectancy
- Designed and built in Wichita, Kansas, USA
- FAA TSO Certified
- Two-year limited warranty
Specifications
Capacity
13 amp-hour nominal at 23°C/73.4°F
Charge Voltage
28.8 VDC nominal
Output Voltage
26.4 VDC nominal
Output Current
100 A continuous, 850 A max
Technology
Advanced iron phosphate lithium-ion cell chemistry
Protection
Overcharge, over-discharge, over-current, short circuit, over-temperature, under-temperature and charge current limiting
Energy Density
76 Wh/kg
121 Wh/liter
Operating Temperature
-20°C to +70°C (-4°F to +158°F)
Weight
12.2 lbs. (5.5 kg)
Dimensions
6.3” L x 5.6” W x 4.9” H
Configuration
2P8S; 2 parallel cells x 8 series cells
Maintenance
On-condition
Battery Life Expectancy
8 year