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Lithium Battery Tech

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Lithium Safety

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Aerolithium Aviation Lithium Batteries became the first in the USA to supply experimental aircraft and light sport aircraft back in Jan. 2011. Started by an ATP (with A&P) Aerospace Technician, we aim to bring aviation into the 21st Century, just as the electric vehicle market has done. Our lithium cell research in EVs began in 2003 in conjunction with A123’s rise to fame and continues today with the latest lithium cell technology advancements.

Our latest generation of Lithium Batteries use all-copper connections, are manufactured without soldering or spot welding, and come encased in an Aluminum shell for extreme durability and protection. Aerolithium Lithium Aviation batteries exceed starting requirements for all Lycoming, Continental, Rotax, and Hirth engines. Aerolithium also works with many fixed and rotary wing manufactures, both piston and turbine. RFQ custom quotes welcome. We are available seven days a week to answer your questions! International orders welcome.

Signature Services

  • Batteries made to fit
  • Choice of Ah capacities
  • Custom sizes
  • Waterproof
  • Shockproof
  • Direct drop-in replacement
  • Compatible w/ 12V / 24V charging systems and alternators
About LiFePo4

  • Dry cell, no acid
  • Flat discharge curve
  • 2000+ discharge cycles
  • Higher average voltage
  • Safe, non-volatile
  • Environmentally friendly
  • 5-10 year usable life span
  • Replaces lead acid at 1/4th the weight

Lithium batteries have ushered in an age of higher cranking voltage & amps, higher resting voltage, no gassing or corrosion, and less toxicity, with no battery tender required.  They are cleaner and environmentally much greener than the primitive lead acid battery which is going the way of the horse and buggy.

Energy storage in a lithium battery has advanced to the point of being very safe, very lightweight (1/4th or less the weight of a lead battery), and a longer life span — thus cheaper than SLA over time.

Whether you have a Jabiru engine; or Pratt & Whitney or Garrett Honeywell or Rolls Royce Allison or Rotorway or Continental or Lycoming;

Consider that a lithium replacement battery will last 5x longer, and although costing about twice as much up front than a stock lead battery, it pays off in the long run, while providing the benefits of lighter weight and smaller size. For those infrequent fliers, a charged lithium battery can sit for months and still fire up your engine.

Lithium lightweight airplane starting batteries are for those who want faster acceleration, increased useful load, shorter takeoffs and landings, have weight and/or balance issues, less mass/stress during hard G turns, no maintenance, easy installation anywhere, and being on the leading edge of technology.

The Lithium Iron Phosphate chemistry of these batteries is non-hazardous, non-flammable and non-corrosive. Extremely small self-discharge, no memory issues like with NiCd, and can be serviced / refurbished if ever needed. These Lithium aircraft starting batteries are a retrofit unit that will work in ANY fixed wing aircraft, helicopters, light sport planes, experimental aircraft, LSA, and gyrocopters.

Engines with fuel injection or electronic ignition are highly advised to have a backup battery installed.  See the presentation given at Oshkosh 2012.

Quality & Safety

Quality of Aerolithium Materials

Cells – Lithium Iron Phosphate (LiFePO4)
Terminals – Copper or Brass
Enclosure – aluminum case; shapes to fit your needs
Warranty – 2 year prorated
Discharge graph – lithium’s flat power curve beats lead acid
Operating temps – minus 20 to 65 Celsius
Electronics – Balancing circuit standard as well as lithium balancing charger
Voltage – 14.4 and 28.8 systems, 10V to 14.5V operating range
Self-discharge – < 5% per year
Specific energy density – 118wh/kg


LiFePO4 Safety information

Many still think that all Lithium batteries are the same, unstable technology.  And there are major PbAcid battery mfr’s putting out downright false information.

If you don’t live, eat and breath lithium… all you know is what you read. So, here is some reading material to get you on the right track:

Charging System Basics

An engine’s electrical system is said to be a 12 volt system, but this is slightly misleading. An aircraft’s charging system will generally produce a voltage between 13.5 and 14.4 volts while the engine is running. It needs to generate more voltage than the battery’s rated voltage to overcome the internal resistance of the battery. This may seem strange, but the current needed to recharge the battery would not flow at all if the charging system’s output voltage was the same as the battery voltage. A greater difference of potential (voltage) between the battery’s voltage and the alternator’s output voltage will provide a faster charging rate.  Thus, a Lithium battery will draw less charging current and charge quicker than the typical sealed (or older wet cell) lead acid aviation battery.

Parasitic Drain Info – MUST read before installing your new lithium battery!

A good way to know what cranking amps your starter needs to start engine; use a clamp-on ammeter around a battery cable.

PowerPoint presentation on using LiFepo4 batteries.

Who We Are

Aerolithium is the only high-tech company specializing in custom design and development of lithium batteries for the Aviation and Aerospace industry.

Our proven lithium power solutions for Defense and Aerospace systems enhances performance, reliability and mission success.

Serving General aviation, Experimental designs, Commercial and Military clientèle worldwide.