The TB44 Advanced Lithium-Ion battery is ideal for turbine driven aircraft to provide quick engine starts and emergency power. The TB44 features NanoPhosphate® lithium-ion cells, which offers three-times more energy per kilogram, resulting in a battery that is 40% lighter than lead-acid or nickel-cadmium alternatives.
- 46 amp-hour battery at 23°C, nominal
- Lighter than lead-acid and nickel-cadmium alternatives — only 51.7 lb
- Advanced NanoPhosphate® lithium-ion cell chemistry
- Seven engine starts in 7 minutes
- 15 minutes for complete recharge when the battery is fully discharged
- Superior performance at extreme temperatures (-40°C to 70°C)
- Overcharge, over-discharge, over-current, short circuit, over-temperature, under-temperature and charge current limiting protection
- Communicates battery status to the cockpit
- Higher voltage during engine start — Less wear, less maintenance and increased useful life
- 2-year maintenance interval
- 8-year useful life, average
- Designed and built in Wichita, Kansas, USA
- Finnoff Pilatus PC-12 STC
Product Codes | |
|---|---|
| Mfr Part No: | 6430044-2 |
| TSO: | C179a |
Hazmat charges may apply
Weight: 51.7 lbs. (23.5 kg)Dimensions: 10.87 x 10.48 x 10.14 inCapacity: 46 amp-hour battery nominal at 23°C/73.4°FCharge Voltage: 28 VDC, nominalOutput Current: 750A continuous, 1500A maxTechnology: Advanced NanoPhosphate® lithium-ion cell chemistryProtection: Overcharge, over-discharge, over-current, short circuit, over-temperature, under-temperature and charge current limitingEnergy Density: 52.0 Wh/kg 64.6 Wh/literTemperature: -40°C to 70°C (-40°F to 158°F), operatingConfiguration: 8S19P; 1 parallel x 8 in series x 19Maintenance: 2-year maintenance intervalUseful Life: 8-year, averageCase: Anodized aluminum, blueCertifications: FAA TSO certified to C179a ETSO certified to C179a RTCA DO-311 qualified RTCA DO-160G qualified UNDOT/IATA qualified
- Stock: Out of Stock - On Backorder
- Manufacturer Part #: 6430044-2
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Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
- Return shipping: paid by buyer.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.
