---
product_id: 806536054
title: "6 Volt 6Ah Lithium Iron Phosphate Lantern Battery, 2000 Cycles Rechargeable LiFePO4 Battery for 4R25 Lantern(Spring S2 Terminals)"
brand: "nermak"
price: "8699534₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Nermak"
url: https://www.desertcart.vn/products/806536054-6-volt-6ah-lithium-iron-phosphate-lantern-battery-2000-cycles
store_origin: VN
region: Vietnam
---

# 6V 6Ah high energy density 2000+ recharge cycles Built-in BMS safety protection 6 Volt 6Ah Lithium Iron Phosphate Lantern Battery, 2000 Cycles Rechargeable LiFePO4 Battery for 4R25 Lantern(Spring S2 Terminals)

**Brand:** nermak
**Price:** 8699534₫
**Availability:** ✅ In Stock

## Summary

> 🔋 Illuminate your journey with power that never quits!

## Quick Answers

- **What is this?** 6 Volt 6Ah Lithium Iron Phosphate Lantern Battery, 2000 Cycles Rechargeable LiFePO4 Battery for 4R25 Lantern(Spring S2 Terminals) by nermak
- **How much does it cost?** 8699534₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/806536054-6-volt-6ah-lithium-iron-phosphate-lantern-battery-2000-cycles)

## Best For

- nermak enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Charging:** Charge directly via included data cable with any phone charger or standard battery charger—no hassle.
- • **Safety First, Always:** Integrated Battery Management System shields against overcharge, over-discharge, and short circuits.
- • **Endurance That Outlasts:** 2000+ recharge cycles vs. 200-300 lead-acid—power that keeps pace with your adventures.
- • **Universal Compatibility:** Seamlessly replaces lead-acid or alkaline batteries in 4R25 lanterns, flashlights, and safety gear.
- • **Power-Packed Performance:** 6V 6Ah LiFePO4 chemistry delivers stable, high-density energy for reliable lighting anytime.

## Overview

The NERMAK 6V 6Ah Lithium Iron Phosphate (LiFePO4) lantern battery offers superior energy density and an impressive 2000+ recharge cycles, far exceeding traditional lead-acid batteries. Featuring built-in BMS protection for enhanced safety and a low self-discharge rate, it’s a reliable, rechargeable power source compatible with 4R25 lanterns and other outdoor devices. Convenient charging via included data cable ensures you’re always ready for your next adventure.

## Description

6V 6Ah Lifepo4 Lantern Battery

Review: Excellent battery. Worked great.
Review: Just got it, charged OK, blue light came on. Will see how long the flash light will last without .

## Features

- 【Superior Performance】: Lithium iron phosphate battery has high energy density, Long cycle life, Good safety performance, No memory effect, etc. NERMAK LiFePO4 battery has built-in BMS protection to prevent overcharge, Over-discharge, Over-current and short circuit, and very low self-discharge rate.
- 【Long Cycle Times】: Lithium batteries 2000 + cycles no problem while the traditional lead-acid and batteries only 200-300 cycles，Alkaline batteries are single-use and do not have a rechargeable function.
- 【Widely Uses】: Can be a direct replacement for lead-acid or alkaline batteries, and can be applied to HD lanterns or flashlights,cameras,fire/safety equipment, etc,From search and rescue missions to backyard camping outings, our batteries will provide stable, powerful power.
- 【Charging Methods】The included data cable can be used to charge the battery directly using a cell phone charger, and it can also be used to charge the battery using a battery charger.
- 【Warm Note】: 1* 6V 6Ah Replacement 4R25 battery，12 months warranty, If you have any question for our product, Contact us: click the "Ask a question" on our storefront or in "YOUR ORDER" options click the "contact seller"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DYD4R9QK |
| Batteries | 1 Nonstandard Battery batteries required. (included) |
| Brand | NERMAK |
| Customer Reviews | 4.4 4.4 out of 5 stars (97) |
| Date First Available | 24 May 2025 |
| Item Dimensions LxWxH | 6.7 x 6.7 x 10.2 Centimeters |
| Item Weight | 363 g |
| Item model number | 6V 4R25 |
| Manufacturer | NERMAK |
| Manufacturer Part Number | 6V 6Ah |
| Model | 6V 4R25 |
| Product Dimensions | 6.71 x 6.71 x 10.16 cm; 362.87 g |

## Product Details

- **Battery Cell Composition:** Lithium Ion
- **Brand:** NERMAK
- **Item Weight:** 0.8 Pounds
- **Vehicle Service Type:** Lantern
- **Voltage:** 6.4 Volts

## Images

![6 Volt 6Ah Lithium Iron Phosphate Lantern Battery, 2000 Cycles Rechargeable LiFePO4 Battery for 4R25 Lantern(Spring S2 Terminals) - Image 1](https://m.media-amazon.com/images/I/6159Uz-sdIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 4 February 2026*

Excellent battery. Worked great.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 27 January 2026*

Just got it, charged OK, blue light came on. Will see how long the flash light will last without .

### ⭐⭐⭐⭐ Review
*by Y***O on 27 June 2025*

This Nermak 6 volt 6Ah LiFePO4 battery seems like a solid upgrade for my lantern. The fact that it's lithium iron phosphate (LiFePO4) is a big plus for longevity, with that 2000 cycle claim suggesting it'll last a good long while before needing a replacement. It's the same dimensions as the existing alkaline version that is about to die. This lithium battery's price point is in the same ball park as that non-rechargeable alkaline. Recharging this battery is pretty straightforward as it uses a cellphone charger. Overall, I feel that for anyone looking for a reliable, rechargeable battery that's built to last in their lantern, this one appears to be worth considering.

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-04*