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EarthX ETX900-TSO Product Manual

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180407
ETX900-TSO Product
Manual
Copyright© 2024 EarthX, Inc. All rights reserved. The information contained in this document is the property of EarthX, Inc.
EarthX reserves the right to make changes to its documents or products without notice. It is the responsibility of each user to
ensure that all applications of EarthX's products are as intended and safe based on conditions anticipated or encountered during
use. The EarthX logo is a trademark of EarthX, Inc

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Summary of Contents for EarthX ETX900-TSO

  • Page 1 Copyright© 2024 EarthX, Inc. All rights reserved. The information contained in this document is the property of EarthX, Inc. EarthX reserves the right to make changes to its documents or products without notice. It is the responsibility of each user to ensure that all applications of EarthX’s products are as intended and safe based on conditions anticipated or encountered during...

  • Page 2: Revision Log

    E T X 9 0 0 - T S O L I T H I U M B A T T E R Y Revision Log Description Date Created New 4/07/2018 I C O N K E Y Valuable information Caution Warning...

  • Page 3: Table Of Contents

    E T X 9 0 0 - T S O L I T H I U M B A T T E R Y T able of Contents Revision Log ..................i Overview ................... 1 Technology Inside ................1 Battery Cells ..................1 BMS ....................

  • Page 4: Overview

    B A T T E R Y Overview EarthX Lithium batteries are designed as a maintenance free replacement for the 12-volt lead-acid or lithium starter batteries. The Starting Battery (Function) is considered Primary in the electrical system for Part 23 Aircraft. The alternator charging system is considered secondary. Per 14 CFR 23.1309-1E and TSO-C179b, the Failure Condition Classification (FCC) for this TSO Battery is...

  • Page 5: Installation Requirements

    (discharge current). Once the alternator is shutdown or fails and the voltage returns to < 15 volts, the BMS’s over-voltage protection automatically resets (allowing charge current). EarthX requires automatic over-voltage protection (crowbar or other means of shutoff) for alternator type charging systems.

  • Page 6: Specifications

    E T X 9 0 0 - T S O L I T H I U M B A T T E R Y the subject of this manual. Below are the installation specific requirements and is not part of the TSO Part (LRU) specific certification under TSO-C179b: •...
  • Page 7 E T X 9 0 0 - T S O L I T H I U M B A T T E R Y Dimensions 6.5in (L) x 3.1in (W) x 6.6in (H) 166mm(L)x77mm(W)x168mm(H) Environmental Rating (resistance to water IP 66 (wash down with a high-pressure intrusion) washer) Operating Temperature (short term)

  • Page 8: Discharge Curves

    E T X 9 0 0 - T S O L I T H I U M B A T T E R Y Discharge Curves The first graph below shows the state-of-charge versus voltage (various discharge rates). Typically, lithium batteries require advanced methods like current counting to track the charge level.

  • Page 9: Discharge Versus Temperature

    E T X 9 0 0 - T S O L I T H I U M B A T T E R Y 6.2A (.39C) 12.4A (.77C) 18.6A (1.16C) 90 100 110 120 130 140 150 160 Time (Minutes) Discharge Time Discharge Versus Temperature We use a similar Cold Cranking Amp test standard as the lead acid battery manufacturers...

  • Page 10: Installation

    E T X 9 0 0 - T S O L I T H I U M B A T T E R Y The self-discharge rate is dependent on temperature. At high temperatures (>25°C), the cell internal resistance decreases so the self-discharge rate increases. See the graph below for self-discharge rates (in % per month) versus temperature.

  • Page 11: Battery Vent Installation

    • The two 1/4” ID tubing can be connected to a wye fitting with 3/8” outlet tubing that leads to the outside of the aircraft. • Only EarthX supplied tubing should be used. The tubing is chemical resistant and rated for 400°F. • Be sure the entire barbed part of the tube fitting is completely inserted into the tubing.

  • Page 12: Fault Monitoring Installation

    Fault Monitoring Connection to Garmin EFIS Configure the digital input (contact input) as “active low”, “user defined alert” type. Fault/Status Indicator (LED) Install Procedure (EarthX supplied LED) suitable location for the Fault/Status Indicator will be determined by the installer. One example is shown below, but aircraft will vary.

  • Page 13: Return To Service Checks (Tests)

    E T X 9 0 0 - T S O L I T H I U M B A T T E R Y LED/Label Installation Example 1. Removed trim panel - drill a 7/16” hole in the panel. 2. Remove the panel nut from the front side of the LED housing and feed the LED housing through the hole from the back side of the panel.

  • Page 14: Aircraft Voltage Monitoring Equipment (If Applicable)

    Inspection and testing is required annually. For more details, see the ICA Warranty EarthX, Inc. (Manufacturer) warrants its lithium batteries (hereafter referred to as Battery or Batteries) to be free of defects in material and workmanship for a period of two years. A dealer is not authorized to issue a replacement battery without prior authorization from EarthX, Inc.
  • Page 15 E T X 9 0 0 - T S O L I T H I U M B A T T E R Y pay the shipping expenses. Batteries replaced under the warranty provisions will carry only the remainder of the original applicable Warranty period.

  • Page 16: Appendix I Do-311A And Do-160G Testing

    E T X 9 0 0 - T S O L I T H I U M B A T T E R Y Appendix I DO-311A and DO-160G Testing DO-311A Test Summary Test Description Section Reportable Information Physical Examination 2.4.4.1 Passed functional performance per DO-311A, Section 2.2.1.1...

  • Page 17: Do-160G Environmental Qualification Form

    L I T H I U M B A T T E R Y DO-160G Environmental Qualification Form The following table is the DO-160G testing Environmental Qualification form. Nomenclature: Rechargeable Lithium Battery System Model: ETX900-TSO TSO Number: TSO-C179b Manufacturer’s Specification: N/A Manufacturer: EarthX Revision &...
  • Page 18 E T X 9 0 0 - T S O L I T H I U M B A T T E R Y Audio Frequency Conducted Equipment tested to Categories B Susceptibility Induced Signal Susceptibility Equipment tested to Categories B(CX) Radio Frequency Susceptibility Equipment tested for conducted susceptibility to Categories R and for radiated susceptibility...
  • Page 19 E T X 9 0 0 - T S O L I T H I U M B A T T E R Y...

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