ETX680-24-TSO (24 Volt FAA Approved for GA Aircraft)
$999.00
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Description
An STC is required for installation. For STC installation, KITS are sold separately and are unique per airframe. Use the search feature button of WHAT BATTERY FITS MY VEHICLE button and then choose CERTIFIED AIRCRAFT to find you exact kit needed for your airframe.
If you need the 8130-3 form for international orders, it is an additional $150 fee per battery and must be requested prior to shipping.
FAA approved 24V ETX680-24-TSO certified aircraft battery.
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.
Included in this certified aircraft battery:
- 1 x ETX680-24-TSO
- 2 x 8mm screws plus washers and lock washers
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. This article can be installed only according to 14 CFR part 43 or the applicable airworthiness requirements.”
EarthX is USA based engineering and manufacturing company dedicated to continuous improvements to bring you the best possible battery.
What's Included
- 1 x ETX680-24-TSO
- 2 x 8mm screws plus washers and lock washers
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)



Click here to download the OEM Product Manual
Click here to download the Letter of Authorization
Click here to download the STC
Click here to download the Approved Model List (AML)
Click here to download the Customer Installation and ICA Manual
Click here to download the Top Level Assembly
Click here to download the Airplane Flight Manual Supplement
EarthX ETX900-TSO & ETX680-24-TSO Lithium Batteries for Certified Aircraft
Common Uses for 24V Lithium Iron Phosphate Batteries
EarthX 24V lithium batteries offer long-lasting power for a range of applications. Choose EarthX Batteries for:
- Certified aircraft: Lead acid batteries have been the power source of choice for certified aircraft, but EarthX has an FAA TSO approved battery to meet flight requirements and improve performance.
- Experimental aircraft: From kit planes, home builds, to factory built aircraft, EarthX is the most trusted lithium aircraft battery used. Our ETX Hundred Series provides the powerful cranking power combined with required capacity at a fraction of the weight.
- OEM products: Many original equipment manufacturers (OEMs) develop machinery with lithium batteries to deliver the power and longevity they require.
Benefits of 24V Lithium Batteries
When you use 24V lithium batteries for your aircraft, vehicle or equipment, you can reap several benefits from their design. Advantages include:
- Charge and discharge cycles: Compared to lead acid batteries, EarthX 24V LiFePo4 batteries have over 2,000 charging and discharging cycles available, which is 10X more than a traditional lead acid battery. This fact allows you to drain and recharge the battery a high number of times before the end of its life span.
- Lightweight: When compared to lead acid batteries, 24V lithium batteries are much lighter, improving the overall performance of the vehicle or aircraft.
- Safe: EarthX Batteries have a built-in Battery Management System (BMS) that prevents overcharging and over discharging. When you use our 24V batteries, you keep the battery safe along with the user.
Charging 24V Lithium Batteries
To charge your 24V LiFePo4 batteries, keep the following tips in mind:
- Use an EarthX-recommended charger for best results.
- Charge away from any extreme temperatures to get the most from your charging.
- Maintain your battery at minimum voltage (26.5V) or higher to extend life span.
- Charge with a “plug in the wall” charger if discharged before engine start attempt.
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