---
product_id: 788932975
title: "- 12V 300Ah (314Ah) LiFePO4 Battery Built-in 200A BMS, 4.01kWh 4000+ Deep Cycles Lithium Battery Ideal for RV Campers, Solar Systems & Off-Grid Power(2 PACKS)"
brand: "dumfume"
price: "€ 1973.44"
currency: EUR
in_stock: true
reviews_count: 11
category: "Dumfume"
url: https://www.desertcart.fi/products/788932975-12v-300ah-314ah-lifepo4-battery-built-in-200a-bms-4
store_origin: FI
region: Finland
---

# Built-in 200A BMS for robust safety 4000+ deep charge cycles longevity 314Ah capacity for extended power - 12V 300Ah (314Ah) LiFePO4 Battery Built-in 200A BMS, 4.01kWh 4000+ Deep Cycles Lithium Battery Ideal for RV Campers, Solar Systems & Off-Grid Power(2 PACKS)

**Brand:** dumfume
**Price:** € 1973.44
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your freedom with next-gen energy that won’t quit!

## Quick Answers

- **What is this?** - 12V 300Ah (314Ah) LiFePO4 Battery Built-in 200A BMS, 4.01kWh 4000+ Deep Cycles Lithium Battery Ideal for RV Campers, Solar Systems & Off-Grid Power(2 PACKS) by dumfume
- **How much does it cost?** € 1973.44 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/788932975-12v-300ah-314ah-lifepo4-battery-built-in-200a-bms-4)

## Best For

- dumfume enthusiasts

## Why This Product

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

## Key Features

- • **Scalable & Flexible:** Easily connect in parallel up to 4S4P for custom high-capacity systems—perfect for growing your off-grid lifestyle.
- • **Safety First, Always:** Integrated 200A Battery Management System protects against overcharge, discharge, and short circuits for peace of mind.
- • **Unmatched Durability:** Over 4,000 full cycles at 100% depth of discharge means this battery outlasts traditional lead-acid by 8x—invest once, power for years.
- • **Power That Lasts All Day:** 2-pack delivers a massive 4.01kWh energy reserve—keep your RV or solar setup running longer without worry.
- • **Lightweight & Space-Savvy:** Compact design at just 57 lbs each fits easily in tight RV or off-grid spaces—portable power without the bulk.

## Overview

The Dumfume 12V 314Ah LiFePO4 battery 2-pack offers a combined 4.01kWh capacity with a built-in 200A BMS for enhanced safety and reliability. Designed for RVs, solar, and off-grid power, these lightweight batteries deliver over 4,000 deep cycles, far exceeding traditional lead-acid lifespan. Compact and easy to install, they support scalable configurations for customized energy solutions.

## Description

Buy Dumfume 12V 300Ah (314Ah) LiFePO4 Battery Built-in 200A BMS, 4.01kWh 4000+ Deep Cycles Lithium Battery Ideal for RV Campers, Solar Systems & Off-Grid Power(2 PACKS): Golf Cart Accessories - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good battery for emergency and daily use - Excellent battery I use it with a converter and it has worked perfectly for cases of blackouts, charging cell phones. It's easy to connect, very useful practice. I totally recommend it.
Review: Well made batteries at a good price - Good batteries at a good price. One came DOA, and after I got a replacement for it, I finished cracking it open to see if it could be repaired in some way. (Do not do this unless you know exactly what you're doing as it is incredibly dangerous) While what the shipper did to it had unfortunately rendered it unsalvageable, I was surprised by just how well these are made. Ring terminals and screws rather than the poorly soldered connections common on 'budget' batteries, lots of foam padding that is properly glued on, and there was liberal use of some kind of rubber or silicone adhesive on anything that could come loose. I'm pretty sure it had to have fallen out of a moving truck for it to come DOA. As for the functional ones, I've cycled them a few times and even under a decent load they always pull at least rated capacity. But, that is to be expected considering that they're actually 314Ah cells under the hood. Whether that's what Dumfume intended, or if that's just what they got their hands on at the time, I don't know and I'm definitely not about to complain about it. The only issue I have with these is the odd size, and I knew that could be an issue going into it. The only battery box I've found that will fit these without being ludicrously large is a double GC2/Group 24 box, which is still a good bit too long for them. You'll have to do something custom if you want them fully enclosed. All in all though, I would not hesitate to buy more of these or another Dumfume battery. Like I said at the beginning, they are good batteries at a good price.

## Features

- 【314Ah Capacity for Extended Power】You will received 2 Packs of Dumfume 12V 314Ah LiFePO4 battery delivers a full 4.01kWh of energy, providing substantial power for long-lasting use. This 300ah Lithium Iron Phosphate Battery performance ensures your RV, solar system, or off-grid setup runs efficiently. For optimal storage, perform a full charge/discharge cycle every 6 months.
- 【Robust 200A BMS with Full Protection】DUMFUME 12.8V 300Ah (314Ah) LiFePO4 battery is equipped with a built-in 200A BMS, enabling a continuous 2560W output and safeguarding against overcharge, over-discharge, and short circuits. This ensures the Dumfume 12V 314AH lithium batteries operate safely and reliably under demanding conditions. Please note: not for use as an engine starter battery.
- 【Compact & Lightweight Design】With compact dimensions of 15.16"x7.59"x9.84" and a weight of just 57.28 lbs per unit, Dumfume 314ah lifepo4 battery duo offers exceptional portability and space savings. The 12v 300ah lithium rv battery battery form factor makes installation in RVs and solar cabinets straightforward and efficient.
- 【Long Lifecycle & Cost Efficiency】Engineered for exceptional endurance, the DUMFUME 300Ah (314Ah) Rechargeable Lithium Iron Phosphate Battery delivers over 4,000 cycles at 100% Depth of Discharge (DOD) and more than 6,000 cycles at 80% DOD,far surpassing the 300-500 cycle limit of traditional lead-acid batteries.This robust performance translates to reliable power for your RV adventures, solar energy storage,and off-grid systems,drastically reducing long-term costs and replacement frequency.
- 【Easy Parallel Connection & Usage Note】Easily connect these two Dumfume 12V 314AH lithium batteries in parallel to create a high-capacity 628Ah system. Supports up to 4S4P configurations for larger setups. Remember: This 300ah Lithium Iron Phosphate Battery is designed for energy storage, not engine starting, and requires a full maintenance cycle every 6 months during extended storage.
- Battery performance requires temperatures of 5°C or higher. Please verify suitability before purchase. Return shipping for low-temperature charging issues is not covered.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0G2M3T2CW |
| Batteries | 2 12V batteries required. |
| Best Sellers Rank | #11,195 in Automotive ( See Top 100 in Automotive ) #93 in Automotive Replacement Batteries |
| Brand | dumfume |
| Customer Reviews | 4.4 4.4 out of 5 stars (550) |
| Date First Available | November 17, 2025 |
| Manufacturer | dumfume |
| Manufacturer Part Number | 2X 12.8V 314Ah LiFePO4 Battery |

## Product Details

- **Battery Cell Composition:** Lithium Polymer
- **Brand:** dumfume
- **Manufacturer:** dumfume
- **Size:** 2 pcs 12V 314Ah
- **Vehicle Service Type:** RV
- **Voltage:** 12.8 Volts

## Images

![- 12V 300Ah (314Ah) LiFePO4 Battery Built-in 200A BMS, 4.01kWh 4000+ Deep Cycles Lithium Battery Ideal for RV Campers, Solar Systems & Off-Grid Power(2 PACKS) - Image 1](https://m.media-amazon.com/images/I/71SkuJhPtmL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good battery for emergency and daily use
*by D***A on January 9, 2026*

Excellent battery I use it with a converter and it has worked perfectly for cases of blackouts, charging cell phones. It's easy to connect, very useful practice. I totally recommend it.

### ⭐⭐⭐⭐⭐ Well made batteries at a good price
*by A***L on December 8, 2025*

Good batteries at a good price. One came DOA, and after I got a replacement for it, I finished cracking it open to see if it could be repaired in some way. (Do not do this unless you know exactly what you're doing as it is incredibly dangerous) While what the shipper did to it had unfortunately rendered it unsalvageable, I was surprised by just how well these are made. Ring terminals and screws rather than the poorly soldered connections common on 'budget' batteries, lots of foam padding that is properly glued on, and there was liberal use of some kind of rubber or silicone adhesive on anything that could come loose. I'm pretty sure it had to have fallen out of a moving truck for it to come DOA. As for the functional ones, I've cycled them a few times and even under a decent load they always pull at least rated capacity. But, that is to be expected considering that they're actually 314Ah cells under the hood. Whether that's what Dumfume intended, or if that's just what they got their hands on at the time, I don't know and I'm definitely not about to complain about it. The only issue I have with these is the odd size, and I knew that could be an issue going into it. The only battery box I've found that will fit these without being ludicrously large is a double GC2/Group 24 box, which is still a good bit too long for them. You'll have to do something custom if you want them fully enclosed. All in all though, I would not hesitate to buy more of these or another Dumfume battery. Like I said at the beginning, they are good batteries at a good price.

### ⭐⭐⭐⭐⭐ Great batteries, great price.
*by J***N on December 16, 2025*

I used these batteries in my solar setup for my camper and theyhave performed great.

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---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-29*