Voltage: 13.2
Weight: 4.1lbs (1.86kg)
Cold Cranking Amps (CCA): 320
Peak Cranking Amps (PCA): 680
Amp Hour (1C Rate): 12.4
Chemistry: Lithium Iron Phosphate (LiFePO4)
Case Size: E
Dimensions: 6.5" L x 3" W x 6.6" H
                    (166mm L x 76mm W x 168mm H)

Please note:

This battery is fully protected by an integrated battery management system (BMS) that 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 batteries have redundant electronic circuits and battery fault indication. The fault indicator can be connected into your EFIS or wired to a 12volt LED light on your control panel to alert you to the state of charge and state of health of the battery. (Please see manual for details)

If you are looking for a more compact sized battery, the ETX680C has the same spec’s but in a more compact size. Visit here to see the details of the ETX680C: ETX680C | Lithium Battery for Experimental Aircraft | EarthX (

EarthX is dedicated to providing you the best possible battery.

What’s included:

  • 1 x ETX680
  • 2 x 6mm screws
  • Foam for proper fitment

LED fault light sold separately

EarthX is USA based engineering and manufacturing company dedicated to continuous improvements to bring you the best possible battery.


*The EarthX ETX680 vs. the Odyssey PC680 For comparison purposes only*

  • Voltage: ETX680: 13.2V | PC680: 12V
  • Weight: ETX680: 4.1lbs | PC680: 15.4lbs
  • Ah (1 hour 1C rate): ETX680: 12.4 | PC680: 12.3
  • Cranking Amps (PCA/CCA): ETX680: 680/320 | PC680: 520/170
  • Dimensions (L x W x H): ETX680: 6.5 x 3 x 6.6 | PC680: 7 x 3 x 6.6
  • Overcharge Protection: ETX680: Yes | PC680: No
  • Over Discharge Protection: ETX680: Yes | PC680: No
  • Battery fault indication: ETX680: Yes | PC680: No
  • Short Circuit Protection: ETX680: Yes | PC680: No

   Click here to download the Product Specification Sheet

   Click here to download the EarthX Battery Manual

   Click here to download the LED Indicator Quick Reference

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