---
product_id: 154128634
title: "EarthX ETX680 Lithium Iron Phosphate Battery (LiFePo4) for Aircraft with BMS (60 amp alternator or less)"
brand: "earthx"
price: "€ 752.26"
currency: EUR
in_stock: true
reviews_count: 1
category: "Earth X"
url: https://www.desertcart.fi/products/154128634-earthx-etx680-lithium-iron-phosphate-battery-lifepo4-for-aircraft-bms
store_origin: FI
region: Finland
---

# 320 CCA / 680 PCA power punch Ultra-light 4.1 lbs weight Integrated BMS with multi-layer protection EarthX ETX680 Lithium Iron Phosphate Battery (LiFePo4) for Aircraft with BMS (60 amp alternator or less)

**Brand:** earthx
**Price:** € 752.26
**Availability:** ✅ In Stock

## Summary

> 🛩️ Fly light, start strong, and stay powered with EarthX ETX680!

## Quick Answers

- **What is this?** EarthX ETX680 Lithium Iron Phosphate Battery (LiFePo4) for Aircraft with BMS (60 amp alternator or less) by earthx
- **How much does it cost?** € 752.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/154128634-earthx-etx680-lithium-iron-phosphate-battery-lifepo4-for-aircraft-bms)

## Best For

- earthx enthusiasts

## Why This Product

- Trusted earthx brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Featherweight Design:** At just 4.1 lbs, this battery slashes weight without sacrificing performance—perfect for aircraft and motorcycles.
- • **Long-Lasting Durability:** Outlasts traditional lead-acid batteries by 2-3X, ensuring fewer replacements and more peace of mind.
- • **Powerful Cold Cranking Amps:** 320 CCA and 680 PCA deliver instant, reliable starts even in demanding conditions.
- • **Smart Fault Indicator Ready:** Easily integrates with EFIS or 12V LED alerts to keep you informed on battery health and charge status in real-time.
- • **Advanced Battery Management System:** Built-in BMS safeguards against overcharge, over-discharge, short circuits, and temperature extremes for ultimate reliability.

## Overview

The EarthX ETX680 is a cutting-edge 12.4Ah Lithium Iron Phosphate battery engineered for aircraft engines up to 400ci and 60 amp alternators or less. Weighing only 4.1 lbs, it delivers 320 CCA and 680 PCA for powerful starts, while its integrated Battery Management System ensures superior protection and longevity—lasting 2-3 times longer than lead-acid alternatives. Ideal for experimental aircraft, race cars, and touring motorcycles, this battery combines lightweight design with smart technology to keep you flying or riding confidently.

## Description

The ETX680 lithium battery has a lot of punch for such a light battery! This battery is intended for an aircraft engine of 400ci or less; 60 amp alternator/generator or less. Can be used in experiemental aircrafts or race cars, just match up the alternator output with the correct battery. This is also an excellent battery choice if you have a touring motorcycle. If your motorcycle has a V-twin engine larger than 110 ci, then you should upgrade to the ETX900 as it delivers the additional cranking amps needed for a V-twin engine start. Our ETX battery series 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, our 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 (SOLD SEPARATELY) to alert you to the state of charge and state of health of the battery. (Please see manual for details) EarthX is proud to be the most trusted brands in the experimental aircraft market.

Review: Excellent company and product - I have been using EarthX batteries in my airplanes for about 15 years and I have found them to be powerful with a long shelf life. They are light weight and have strong cold cranking amps (CCA). Perhaps the only drawback is the high alternator output required to recharge after starting the engine. My 60 amp alternator goes to full output to recharge for 5 to 10 minutes (depending on initial charge status of the battery) after engine start.

## Features

- Only 4.1 lbs and has 320 CCA / 680 PCA , 12.4Ah.
- 60 amp charging system or less!
- Last 2-3X longer than lead acid!
- Will not freeze, boil or corrode!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WC4H124 |
| Battery Cell Composition | Lithium |
| Battery Type | Lithium |
| Best Sellers Rank | #549,063 in Automotive ( See Top 100 in Automotive ) #1,158 in Powersports Batteries |
| Brand | EarthX |
| Brand Name | EarthX |
| Compatible with Vehicle Type | Motorcycle, Passenger Car |
| Customer Reviews | 5.0 out of 5 stars 3 Reviews |
| Item Dimensions D x W x H | 3.1"D x 6.5"W x 6.6"H |
| Item Height | 6.6 inches |
| Manufacturer | EarthX |
| Manufacturer Part Number | ETX680 |
| Product Dimensions | 3.1"D x 6.5"W x 6.6"H |
| Size | 6.5" L x 3.1" W x 6.6" H |
| UPC | 711347112300 |
| Vehicle Service Type | Motorcycle, Passenger Car |
| Voltage | 13.2 Volts |

## Images

![EarthX ETX680 Lithium Iron Phosphate Battery (LiFePo4) for Aircraft with BMS (60 amp alternator or less) - Image 1](https://m.media-amazon.com/images/I/71DE8i7akhL.jpg)

## Questions & Answers

**Q: Which side has the positive terminal? a picture would help**
A: The battery is symmetric so the terminals are placed in the center of the battery.  Just flip the battery as needed to get the positive terminal where you need it.

https://earthxbatteries.com/wp-content/uploads/2012/10/ETX680-Product-Spec.pdf

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent company and product
*by S***N on February 12, 2025*

I have been using EarthX batteries in my airplanes for about 15 years and I have found them to be powerful with a long shelf life. They are light weight and have strong cold cranking amps (CCA). Perhaps the only drawback is the high alternator output required to recharge after starting the engine. My 60 amp alternator goes to full output to recharge for 5 to 10 minutes (depending on initial charge status of the battery) after engine start.

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-30*