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Earthx Etx400-24-vnt Lithium Battery 24v/7.8ah Case E - Experimental Aircraft Only

$1337.60/Each
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Part# 11-20927
MFR Model# ETX400-24-VNT

Overview

Note: Not FAA Approved. Intended for use in EXPERIMENTAL AIRCRAFT ONLY.

The ETX400-24-VNT is a deep cycle backup aircraft battery.

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, the ETX-Hundred Series aircraft batteries have redundant electronic circuits and battery fault indication. The fault indicator can be connected into your EFIS or wired to a 24volt LED light on your instrument panel. The fault light will alert you to the state of charge and state of health of the battery. (Please see manual for details)

In addition to the BMS, this battery has thermal runaway containment and venting designed to meet all the DO-311a and DO-160 requirements for a lithium battery in aircraft. The ETX400-24-VNT is for experimental aircraft, however a TSO approved version is estimated to be available in mid 2025.

Specifications

  • SKU: ETX400-24-VNT
  • Voltage: 26.4
  • Weight: 5.4 (lbs) (2.4 Kg)
  • Cold Cranking Amps (CCA): 290
  • Peak Cranking Amps (PCA): 400
  • Amp Hour (1C Rate): 7.8
  • Chemistry: LiFePo4
  • Case Size: E
  • Dimensions: 6.5" L x 3.0" W x 6.6" H (166mm L x 76mm W x 168mm H)

Benefits

  • With EarthX, you gain the quality and performance you want from your lithium batteries. Our experienced team commits to innovation and industry best practices to deliver batteries you can trust. We only source high-quality materials for our batteries, and we support every product with attentive customer service. The aircraft specific batteries are the ETX Hundred series, do not use the power sport batteries as they do not have all the same safety features as the aircraft specific ones.
  • 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 Experimental Aircraft
  • EarthX lithium batteries offer many benefits for experimental aircraft, including:
  • Lightweight materials: Our lithium batteries use cutting edge technology that lead to a much lighter battery and more powerful batteries as compared to lead acid counterparts. There’s about an 80% weight savings over a comparable lead acid battery for instant weight savings.
    For Example: the PC680 weighs 15 pounds and has 170CCA. The EarthX ETX680 weighs 4 pounds and has 320CCA. Lighter weight makes installation easier and improves the handling of your aircraft.
  • Increased cranking power: EarthX Batteries do not experience the large voltage drops as lead acid batteries experience to provide you a consistent and powerful startup every time you use your aircraft.
  • Safe performance: EarthX Batteries feature a state-of-the-art Battery Management System (BMS) that monitors performance and prevents overcharging and over discharging. The BMS is key to the longevity of our batteries.
  • Long-lasting: With the help of the BMS, our lithium batteries can last up to six years, even with heavy use in your experimental aircraft.

  • Our Commitment To Powering Aviation
  • Innovation drives us, and we continue to develop our batteries for use in the aviation industry. We are the first and only company in the world to have a 12V FAA TSO approved lithium battery for aviation use, and this is only the beginning. Our engineers have more TSO approved models in the works to make a significant impact on this industry. We currently also have a 24V FAA TSO battery offering.
  • Lead acid batteries have been at the forefront of aircraft power for decades, but we want to see change. Our developments in lithium iron phosphate batteries offer greater power, performance and safety for aircraft of all types. Be prepared to see new aircraft on the market that come with EarthX Batteries straight from the manufacturer.
  • We have goals in the aviation industry to make changes for the betterment of all, and we’re offering our support wherever we can with a Veteran owned and operated company in the USA.

Documents

In The Box

  • 1 x ETX400-24-VNT
  • 2 x M6 screws with washers and lock washers
  • LED fault light sold separately
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Please note, Aircraft Spruce Australia'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 Australia 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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