---
product_id: 352179676
title: "2 Pack ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications"
brand: "eci power"
price: "HK$2526"
currency: HKD
in_stock: true
reviews_count: 8
url: https://www.desertcart.hk/products/352179676-2-pack-eci-power-12v-20ah-lithium-lifepo4-deep-cycle
store_origin: HK
region: Hong Kong
---

# 2000-5000 Cycles 12V Power Built-in BMS 2 Pack ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications

**Brand:** eci power
**Price:** HK$2526
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Adventures with ECI!

## Quick Answers

- **What is this?** 2 Pack ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications by eci power
- **How much does it cost?** HK$2526 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/352179676-2-pack-eci-power-12v-20ah-lithium-lifepo4-deep-cycle)

## Best For

- eci power enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Equipped with a built-in Battery Management System (BMS) for ultimate protection against overcharging and overheating.
- • **Unmatched Longevity:** Experience up to 5000 life cycles at 50% DOD, ensuring your power needs are met for years to come.
- • **Lightweight Powerhouse:** Weighing only 5.8 lbs, this battery is designed for easy transport and installation in RVs, boats, and off-grid setups.
- • **Versatile Applications:** Perfect for RV, solar, marine, and overland adventures, this battery adapts to your lifestyle.
- • **Economical Energy Solution:** Get high-performance longevity at a phenomenal price point, making safe lithium power accessible for all.

## Overview

The ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery is engineered for modern energy applications, offering an impressive lifespan of 2000-5000 cycles, a built-in Battery Management System for safety, and a lightweight design perfect for various uses including RVs, solar setups, and marine applications.

## Description

Full description not available

## Features

- ECI Power: A brand for everyone with the goal of providing an open avenue for all to know that safe lithium power should not be cost-prohibitive nor outside the scope of your project.
- Unmatched Technology: The ECI Power LiFePO4 battery is designed to meet the needs of modern energy applications while exceeding performance comparable to even the most expensive batteries on the market.
- Proven Quality: The battery is backed by our industry leading engineering and after-sales teams covering North America and beyond since 1987
- Economical: At a phenomenal price point, the battery is rigorously lab-tested and guaranteed to meet a minimum 2000 cycles at 80% DOD, providing high-performance longevity with a maximum of 5000 cycles at 50% DOD.
- Complete Protection: The lithium battery’s unique built-in Battery Management System (BMS) protects it from overcharge, deep discharge, overloading, overheating and short circuit, and excessive low self-discharge rate ensuring up to 1 year maintenance-free storage. Built-in low-temp cut off prevents charging under 23 °F (-5 °C).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Voltage | 12 Volts |
| Compatible with Vehicle Type | Trailer |
| Item Weight | 5.8 Pounds |
| Item Dimensions D x W x H | 3"D x 7.1"W x 6.6"H |
| Size | 2-Pack |
| Battery Type | Lithium |

## Images

![2 Pack ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications - Image 1](https://m.media-amazon.com/images/I/61zxeQ5G1+L.jpg)
![2 Pack ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications - Image 2](https://m.media-amazon.com/images/I/71UZzDZRHrL.jpg)
![2 Pack ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications - Image 3](https://m.media-amazon.com/images/I/71E-uwnr0SL.jpg)
![2 Pack ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications - Image 4](https://m.media-amazon.com/images/I/81xUou8iZvS.jpg)
![2 Pack ECI Power 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2000-5000 Life Cycles & 10-Year lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications - Image 5](https://m.media-amazon.com/images/I/71IWyGGO5yS.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great upgrade
  

*by L***E on Reviewed in the United States on June 2, 2023*

Replaced the well used Gel Batteries in my Pride Elite Traveller Plus a little over a week ago.  When new, the Manufacture said the scooter could go 14 miles with the supplied batteries under ideal conditions (flat terrain) and with a normal sized rider (maybe a small woman).  I kept a somewhat accurate log on milage for the past eight days and got 18 miles on a single charge.  There was some juice left when I got home, but the battery indicator was down a couple of notches and I did not want to risk having to walk.  It was not all flat terrain and wish I was a normal size for a man and 50lbs lighter.  A 30% increase in range is not too shabby.  So far so good.  Fast shipping.

### ⭐ 1.0 out of 5 stars







  
  
    Battery Never accepted a charge - Seller Refused to Return or Refund
  

*by L***E on Reviewed in the United States on June 25, 2024*

Purchased battery for small solar need. Tested for performance and capacity under minimal load, battery won't not accept a charge from initial testing. Seller refused to accept return or provide a refund. DON"T PURCHASE FROM THIS SELLER - BUYER BEWARE!!!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    MISLEADING AD BUT RECEIVED GREAT HELP!
  

*by G***. on Reviewed in the United States on July 17, 2021*

I recently purchased two of these batteries. And I'm very disappointed to noticed after opening the package, where are the bolts that supposed to be screwed in the posts for the batteries to secure the negative and positive cables in place? On Amazon website you can clearly see the posts on the batteries. I find the advertisement to be very misleading. Now I will definitely have to pay more money to get the bolts that screws into the threaded posts ☹️  Update: 7/25/21 After I made contact with the company, I was assisted and helped with great Customer Service by Bryan. He and his co-workers went over and beyond in making sure that I got the screws that was needed! Which I got them on the 7/24/21 through the mail. Thanks Again to Bryan and his co-workers 😊 So my rating will change to 5 ⭐⭐⭐⭐⭐Stars.

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**Shop now:** [https://www.desertcart.hk/products/352179676-2-pack-eci-power-12v-20ah-lithium-lifepo4-deep-cycle](https://www.desertcart.hk/products/352179676-2-pack-eci-power-12v-20ah-lithium-lifepo4-deep-cycle)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-02*