---
product_id: 734584754
title: "2 Pack 12V 100Ah Slim Lithium LiFePO4 Battery, Xtra Mini Deep Cycle RV Battery with 100A BMS & Low-Temp Protection Smart Small Lithium Battery for Solar Systems, Off-Grid Marine RV"
brand: "dumfume"
price: "$1031.46"
currency: USD
in_stock: true
reviews_count: 13
category: "Dumfume"
url: https://www.desertcart.us/products/734584754-2-pack-12v-100ah-slim-lithium-lifepo4-battery-xtra-mini
store_origin: US
region: United States of America
---

# 100Ah high capacity Slim 5.67in profile 100A BMS with low-temp protection 2 Pack 12V 100Ah Slim Lithium LiFePO4 Battery, Xtra Mini Deep Cycle RV Battery with 100A BMS & Low-Temp Protection Smart Small Lithium Battery for Solar Systems, Off-Grid Marine RV

**Brand:** dumfume
**Price:** $1031.46
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Your Adventures with Slim, Smart, and Scalable Energy!

## Quick Answers

- **What is this?** 2 Pack 12V 100Ah Slim Lithium LiFePO4 Battery, Xtra Mini Deep Cycle RV Battery with 100A BMS & Low-Temp Protection Smart Small Lithium Battery for Solar Systems, Off-Grid Marine RV by dumfume
- **How much does it cost?** $1031.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/734584754-2-pack-12v-100ah-slim-lithium-lifepo4-battery-xtra-mini)

## 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

- • **Smart Safety First:** Integrated 100A Battery Management System guards against overcharge, discharge, and cold weather shutdowns.
- • **Scalable Energy Freedom:** Wire in series or parallel to customize your power setup from 12V to 24V or up to 200Ah capacity.
- • **Slim Fit, Maximum Power:** Engineered to slide into the tightest RV, marine, or off-grid battery trays without compromise.
- • **Rugged & Maintenance-Free:** IP65-rated ABS housing resists dust, water, rust, and eliminates watering or fume worries for hassle-free use.
- • **Decade-Long Deep Cycle Durability:** Premium LiFePO4 cells deliver up to 15,000 cycles—outlasting lead-acid by 30x for true long-term savings.

## Overview

The 2 Pack 12V 100Ah Slim Lithium LiFePO4 Batteries by DUMFUME offer a compact, high-capacity energy solution designed for RVs, marine, and off-grid solar systems. Featuring a slim 5.67-inch profile, integrated 100A smart BMS with low-temp protection, and scalable wiring options, these batteries deliver up to 15,000 deep cycles with maintenance-free, IP65-rated durability—perfect for professionals seeking reliable, long-lasting power in tight spaces.

## Description

Buy 2 Pack 12V 100Ah Slim Lithium LiFePO4 Battery, Xtra Mini Deep Cycle RV Battery with 100A BMS & Low-Temp Protection Smart Small Lithium Battery for Solar Systems, Off-Grid Marine RV: Batteries - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent value for the price - I bought 4 of these batteries for a total of 100ah @ 51.2v. I just ordered their, single, 51.2v battery as well. So far I've had no issues whatsoever. I've used an electric kettle(1500w for 10min) to boil water, an air fryer(1500w for 30min) to fry some wings, and the batteries delivered without a hitch. The batteries are so lightweight that moving them around from delivery to installation was really easy. They don't have Bluetooth, however, but I use victron components to monitor as much as I can. At this price, you'd be making a mistake not to buy.
Review: Excellent I'll BE BACK - Well i have not finish setting up yet. but so fare it is a great battery long lasting and multi purposed a good product of the 21 century and getting Better.THANKS desertcart for being a connecting force and the market today.appreciate it

## Features

- Xtra Mini Slim Profile-Fits Any Tight Space: Just 5.67 inches thick and 9.0 inches long – Dumfume 12V 100Ah slim lithium battery is engineered for tight battery trays in RVs, boats and off-grid cabins. Much shorter and narrower than standard 100Ah batteries.
- Smart 100A BMS with Low-Temp Protection: DUMFUME 12v 100ah mini battery has its own 100A Battery Management System with full protections: overcharge, over-discharge, overcurrent, short circuit, and low-temp cut-off. Safe for cold weather solar systems and winter camping.
- Flexible Configuration – Supports 4S4P: Wire in parallel for 12V 200Ah capacity, or in series for 24V 100Ah (requires compatible charger). DUMFUME 12.8v 100ah lithium iron phosphate battery pack adapts to RVs, marine, home energy storage, and off-grid battery banks. Scalable to larger systems.
- 15000 Cycles & 10-Year Life-Real Deep Cycle Value: Premium Grade A LiFePO4 cells deliver 15,000 cycles and a decade of service. Unlike lead-acid (200-500 cycles), DUMFUME 100 amp hour lithium battery 12v saves you thousands over time. Perfect for daily solar systems and off-grid battery banks.
- IP65 ABS Housing-Rustproof & Maintenance-Free: Durable ABS plastic shell is IP65 dustproof and waterproof. No rust, no watering, no fumes. Each slim extra mini 100ah battery is lightweight and compact (9.0x5.67x8.19in). If storing unused over 6 months, recharge every 6 months to maximize cycle life. Please note that this 12v battery is not for use as a starter batery.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0GY4BWQ88 |
| Best Sellers Rank | #917,002 in Health & Household ( See Top 100 in Health & Household ) #10,717 in 12V Batteries |
| Brand | dumfume |
| Customer Reviews | 4.4 out of 5 stars 800 Reviews |
| Manufacturer | dumfume |
| Voltage | 12 Volts |

## Product Details

- **Brand:** dumfume
- **Size:** 12.8V50Ah
- **Item Weight:** 5.9 Kilograms
- **Terminal:** M8
- **Manufacturer:** dumfume

## Images

![2 Pack 12V 100Ah Slim Lithium LiFePO4 Battery, Xtra Mini Deep Cycle RV Battery with 100A BMS & Low-Temp Protection Smart Small Lithium Battery for Solar Systems, Off-Grid Marine RV - Image 1](https://m.media-amazon.com/images/I/71ydccq2frL.jpg)
![2 Pack 12V 100Ah Slim Lithium LiFePO4 Battery, Xtra Mini Deep Cycle RV Battery with 100A BMS & Low-Temp Protection Smart Small Lithium Battery for Solar Systems, Off-Grid Marine RV - Image 2](https://m.media-amazon.com/images/I/717Clz2-+qL.jpg)
![2 Pack 12V 100Ah Slim Lithium LiFePO4 Battery, Xtra Mini Deep Cycle RV Battery with 100A BMS & Low-Temp Protection Smart Small Lithium Battery for Solar Systems, Off-Grid Marine RV - Image 3](https://m.media-amazon.com/images/I/81wkJw3fzWL.jpg)
![2 Pack 12V 100Ah Slim Lithium LiFePO4 Battery, Xtra Mini Deep Cycle RV Battery with 100A BMS & Low-Temp Protection Smart Small Lithium Battery for Solar Systems, Off-Grid Marine RV - Image 4](https://m.media-amazon.com/images/I/71ju1tCnIlL.jpg)
![2 Pack 12V 100Ah Slim Lithium LiFePO4 Battery, Xtra Mini Deep Cycle RV Battery with 100A BMS & Low-Temp Protection Smart Small Lithium Battery for Solar Systems, Off-Grid Marine RV - Image 5](https://m.media-amazon.com/images/I/813yknfSlYL.jpg)

## Available Options

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

## Questions & Answers

**Q: Any tips for connecting batteries in series or parallel?**
A: Yes – fully charge each battery first. Use the same brand, model, capacity, and BMS, and buy them within 3–6 months of each other. For multiple connections, use a bus bar.

**Q: Can I use the battery right after delivery?**
A: For shipping safety, it comes with ≤40% charge. Fully charge it before first use.

**Q: Can I use this battery on a boat?**
A: Yes, as a service battery for things like a fridge or coffee maker. Keep it dry and away from water. Not for starting engines or trolling motors.

**Q: Can I charge or discharge it in cold weather?**
A: Discharge works from -4°F (-20°C) to 140°F (60°C). But never charge below 32°F (0°C) – it damages the cells. The BMS will block charging. In winter, bring it indoors above 41°F (5°C) before charging.

**Q: Does the package include a LiFePO4 charger?**
A: No. Please use only a dedicated 14.6V LiFePO4 smart charger. Using a regular lead-acid or other lithium charger can damage the battery.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent value for the price
*by S***2 on June 9, 2025*

I bought 4 of these batteries for a total of 100ah @ 51.2v. I just ordered their, single, 51.2v battery as well. So far I've had no issues whatsoever. I've used an electric kettle(1500w for 10min) to boil water, an air fryer(1500w for 30min) to fry some wings, and the batteries delivered without a hitch. The batteries are so lightweight that moving them around from delivery to installation was really easy. They don't have Bluetooth, however, but I use victron components to monitor as much as I can. At this price, you'd be making a mistake not to buy.

### ⭐⭐⭐⭐⭐ Excellent I'll BE BACK
*by B***N on August 13, 2025*

Well i have not finish setting up yet. but so fare it is a great battery long lasting and multi purposed a good product of the 21 century and getting Better.THANKS AMAZON for being a connecting force and the market today.appreciate it

### ⭐ Low battery
*by R***P on July 8, 2025*

I bought the 36 v for my golf cart. The BMS system might be bad. The battery shows no power at all when it is less than 99%.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-10*