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EarthX ETX680-24-TSO 24V Lithium Aircraft Battery - For Certified Aircraft

$999.00/Each
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Part# 11-18796
MFR Model# ETX680-24-TSO

Overview

Note: The FAA approved 24V ETX680-24-TSO designed for certified aircraft.

FAA REQUIRED STATEMENT:
“The conditions and test required for TSO approval of this article are minimum performance standards. Those installing this article either on or within a specific type or class of aircraft must determine that the article installation conditions are within the TSO standards. The article may be installed only according to 14 CFR part 43 or the applicable airworthiness requirements.”


This battery has electronic protections (BMS) and built in thermal runaway containment and venting ability built in. Additionally, he ETX680-24-TSO meets all of the DO-311a and DO-160G requirements for a lithium battery in aircraft.

This battery is fully protected by an integrated battery management system (BMS). The BMS protects the cell’s from over discharge, over charge, short circuit, temperature, plus cell balancing to ensure charge levels are equal. Additionally, ETX-Hundred-Series aircraft batteries have redundant electronic circuits and battery fault indication. Also, this battery has fault indication that can be programed into your EFIS or wired to an LED on your panel. The fault indicator alerts you to the state of charge and state of health of the battery. (Please see manual for details)

Please Note: Due to shipping regulations, this battery does ship as dangerous goods outside of the 48 continental USA states
   
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Benefits

  • EarthX lithium batteries are an excellent option for the aviation industry. Our experienced team develops our batteries for lasting performance and safety through all types of use. In our mission to create the best lithium battery on the market, we source only the highest quality materials to deliver a product you can trust.

  • Beyond performance and quality, EarthX is veteran-owned and operated in the United States where we offer comprehensive customer service to address every requirement.
  • As a veteran-owned, U.S.-based company, we’re proud to provide the batteries you require for your experimental aircraft.

  • Advantages Of Utilizing EarthX Batteries For Certified Aircraft
  • EarthX is a trusted provider of lithium batteries, and the batteries themselves provide several benefits for certified aircraft, including enhanced performance during take off, in flight or landing:
  • Reduced Weight: Achieve overall weight reduction for improved efficiency.
  • Increased Climb Rate: Experience faster and smoother ascent.
  • Shorter Takeoff Roll: Enjoy quicker and more responsive takeoffs.
  • Reliability in All Conditions: Benefit from worry-free starts in both hot and cold weather.
  • No Freezing, No Acid, No Sulphation: Eliminate concerns over freezing, acid leakage, and sulphation.
  • Advanced Technology: Utilize a state-of-the-art battery management system that alerts you to any anomalies, allowing for timely mitigation.
  • Increase useful load: carry more essentials or passengers.
  • Ease of installation: With the STC approval, we provide installation kits with our batteries to make the installation process as straightforward as possible. Whether you’re introducing a lithium battery to your certified aircraft for the first time, or you’re replacing, you can expect a quick and easy installation.
  • Lightweight material: EarthX lithium batteries are lightweight, especially when compared to lead acid counterparts. This lighter weight makes the process of installing it easier and improves the overall handling of your aircraft. Increase your payload, decrease your gas needs, it’s a win win product.
  • Trustworthiness: Trust and safety are key components for certified aircraft batteries. EarthX Batteries have a built-in Battery Management System (BMS) that monitors performance and protects the battery from overcharging or over discharging and short circuit protection. The BMS is also key to the longevity of the battery — even with heavy use.
  • Storage capacity: LiFePo4 batteries can use 100% of their storage capacity, meaning your aircraft can reap the benefits of full power after a charge.
  • Fast charging: Lithium batteries charge quickly, allowing you to fully recharge a battery in much less time so you can get to flying in no time. Additionally, these batteries discharge at a much slower rate in storage so the need to recharge is minimized.
  • Cranking power: Lithium batteries offer consistent cranking power that will not drop-off. Regardless of the temperatures or environment you start your aircraft in, you can expect high cranking performance when you start up.

  • Our Commitment To Powering Aviation
  • At EarthX, innovation is the core of our mission. We exemplify this commitment in the aviation industry by being the first company in the world to offer a 12V FAA TSO approved lithium battery. With the benefits of these batteries, certified aircraft can vastly improve performance beyond what we’ve seen in the industry.
  • Our existing TSO approved models (EarthX also has a 24V FAA TSO approved lithium battery) is only the beginning of our aviation innovations. We have more TSO approved batteries in development to diversify our LiFePo4 battery applications.
  • In the near future, you can expect to see more of EarthX in the general aviation market. Keep your eye out for new aircraft that come standard with EarthX lithium batteries — straight from the manufacturer. This is our goal, and we intend to stick with it through our commitment to battery development.
  • We also support individual aircraft owners. To install an EarthX battery in your aircraft, download the installation manual and the STC, which is offered free of charge for your airframe.

Specifications

  • SKU: ETX680-24-TSO
  • Voltage: 26.4
  • Weight: 7.2lbs (3.2Kg)
  • Cold Cranking Amps (CCA): 400
  • Peak Cranking Amps (PCA): 850
  • Amp Hour (1C Rate): 11.7
  • Chemistry: Lithium Iron Phosphate (LiFePO4)
  • Case Size: U
  • Dimensions: 6.5" L x 5.1" W x 6.6" H (166mm L x 129mm W x 168mm H)

In The Box

  • 1 x ETX680-24-TSO
  • 2 x 8mm screws plus washers and lock washers
  • Accessories
  • Frequently Purchased With
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Reviews

This Specific Battery is for Certified Aircraft. Installed on the New Cirrus G7s. Great Battery.

Kim D
June 18, 2025

DO NOT BUY for a certified aircraft! I attempted to install via a field approval but it was denied. Upon reaching out I was told that they will only be allowed by STC. I was hopeful because this battery seemed like a great option to replace my current battery and shed some weight. Maybe someday there will be an STC...

Kevin C
September 19, 2022

Q&A

Please note, Aircraft Spruce ®'s personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce ® assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

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