EarthX ETX680 24V Lithium Aircraft Battery - For Certified Aircraft

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Part# 11-18796
MFR Model# ETX680-24-TSO


Note: STC not currently available, must attain your own field approval to install it.

The FAA approved 24V ETX680-24-TSO designed for certified aircraft!

This battery is only 7.2 pounds and can be used in an aircraft that has an alternator/generator with 70 amps output or less. This battery has electronic protections (BMS) and built in thermal runaway containment and venting ability built in. The ETX680-24-TSO meets all of the DO-311a and DO-160 requirements for a lithium battery in aircraft.

The battery also has an LED battery fault light indicator on the battery itself plus it 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.

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.”
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.


  • The battery management system (BMS) protects the cells from:
    • over discharge
    • over charge
    • short circuit
    • excessive cranking
    • cell balancing technology
    • PLUS these protections are redundant for another layer of protection.
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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


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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