---
product_id: 534648004
title: "12V 50Ah Lithium Battery, Rechargeable LiFePO4 Battery with Built-in 50A BMS Board, 5000+ Deep Cycles, Perfect for RV, Solar System, Fishing Boat, Camper and Off Grid Applications"
brand: "hayaenergy"
price: "€ 244.27"
currency: EUR
in_stock: true
reviews_count: 8
category: "Haya Energy"
url: https://www.desertcart.fi/products/534648004-12v-50ah-lithium-battery-rechargeable-lifepo4-battery-with-built-in
store_origin: FI
region: Finland
---

# Built-in 50A BMS for smart protection 5000+ deep cycles 1/3 weight of lead-acid battery 12V 50Ah Lithium Battery, Rechargeable LiFePO4 Battery with Built-in 50A BMS Board, 5000+ Deep Cycles, Perfect for RV, Solar System, Fishing Boat, Camper and Off Grid Applications

**Brand:** hayaenergy
**Price:** € 244.27
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your freedom with lightweight, long-lasting energy!

## Quick Answers

- **What is this?** 12V 50Ah Lithium Battery, Rechargeable LiFePO4 Battery with Built-in 50A BMS Board, 5000+ Deep Cycles, Perfect for RV, Solar System, Fishing Boat, Camper and Off Grid Applications by hayaenergy
- **How much does it cost?** € 244.27 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/534648004-12v-50ah-lithium-battery-rechargeable-lifepo4-battery-with-built-in)

## Best For

- hayaenergy enthusiasts

## Why This Product

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

## Key Features

- • **Modular & Scalable:** Easily connect in series or parallel to customize voltage and capacity up to 48V/200Ah for any adventure.
- • **Smart Safety Shield:** Integrated 50A BMS guards against overcharge, discharge, and temperature spikes for worry-free use.
- • **Endurance That Outlasts:** 5000+ cycles means a decade of reliable power—say goodbye to frequent replacements.
- • **Featherweight Powerhouse:** At just 13 lbs, it’s 1/3 the weight of traditional lead-acid batteries—portable power redefined.
- • **Versatile Off-Grid Essential:** Perfect for RVs, solar setups, fishing boats, and campers—power your lifestyle anywhere, anytime.

## Overview

This 12V 50Ah LiFePO4 rechargeable battery features a robust 50A built-in BMS for advanced safety and cell balancing, delivering over 5000 deep charge cycles—8 to 10 times longer than lead-acid alternatives. Weighing only 13 pounds, it offers high energy density and portability, ideal for RVs, solar systems, fishing boats, and off-grid applications. Its modular design supports series and parallel connections for scalable voltage and capacity, backed by a 3-year warranty.

## Description

Buy 12V 50Ah Lithium Battery, Rechargeable LiFePO4 Battery with Built-in 50A BMS Board, 5000+ Deep Cycles, Perfect for RV, Solar System, Fishing Boat, Camper and Off Grid Applications: 12V - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great kayak battery - Holds its charge, is light,and is reliable. I use it on my 10 foot kayak for range and time on the water.
Review: Powerhouse - Great little battery right here. We purchased 4 of them just to try them out and they are light weight, come charged, and so far doing what I need them to do. I will be buying lots more of these.

## Features

- 🔋【High Safety Performance】Safety is the top priority when we are building batteries. Adopting premium automotive grade LiFePO4 battery cells makes our 12v 50ah LiFePO4 batteries has a very stable charging & discharging structure and platform, therefore, the battery will not burn or explode even if damaged inside or outside( short circuit, overcharge and extrusion, puncture).
- 🔋【10+ Year Service Life】The life cycle of our 12v 50ah lithium battery is up to 5000+ cycles, 8 to 10 times longer than that of standard lead-acid batteries(300-500 times). Can be used for 10+ years. A perfect 50ah lithium batteries replacement which is widely applied on fishing boat, RV, solar power system, off-grid application and etc.
- 🔋【Built-in 50A BMS】Each lithium battery 12v 50ah comes with 50A battery protection board, which smartly balance cells inside to protect from over-charging, over-discharging, over-current, short-circuit and over-temperature and over load, offering you a powerful and stable power supply. A single 12v 50ah battery can well discharge on 0-600W motor at low temp environment from -4°F To 140°F
- 🔋【Lightweight & Portable】Thanks to the high energy density feature, on the same capacity(eg: 50ah), the volum of our lifepo4 battery 50ah is only around 1/2 of that of standard lead acid battery, the weight is 1/3 of that of standard lead acid one, which means that our lifepo4 batteries not only take up less space, but also greatly reduce loads on your device. Each battery has a solid-built handle on the top for easy carry.
- 🔋【Good to DIY】All of our 50ah lithium batteries can be connected in series and in parallel for higher voltage and larger capacity. You can connect them to get 24v, 36v, 48v or get a max 200ah capacity. 4PCS 12v 50ah batteries in 4 series can support around 48V 2400W motor.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C6QB8RG1 |
| Battery Cell Composition | Lithium |
| Battery Type | Lithium |
| Best Sellers Rank | #144,435 in Health & Household ( See Top 100 in Health & Household ) #334 in 12V Batteries |
| Brand | HAYAEnergy |
| Brand Name | HAYAEnergy |
| Compatible with Vehicle Type | Boat, RV, Van |
| Customer Reviews | 4.3 out of 5 stars 331 Reviews |
| Included Components | 12V 50Ah Battery |
| Item Dimensions D x W x H | 5.5"D x 9"W x 8.3"H |
| Item Type Name | 12v 50ah battery |
| Item Weight | 13 Pounds |
| Manufacturer | SZJTech |
| Manufacturer Part Number | YX-1250Purple |
| Manufacturer Warranty Description | 36 month warranty |
| Size | 1 |
| Terminal | M8 |
| Vehicle Service Type | Boat, RV, Van |
| Voltage | 12 Volts (DC) |

## Product Details

- **Brand:** HAYAEnergy
- **Size:** 1
- **Product Dimensions:** 5.5"D x 9"W x 8.3"H
- **Terminal:** M8
- **Automotive Fit Type:** Universal Fit
- **Manufacturer:** SZJTech

## Images

![12V 50Ah Lithium Battery, Rechargeable LiFePO4 Battery with Built-in 50A BMS Board, 5000+ Deep Cycles, Perfect for RV, Solar System, Fishing Boat, Camper and Off Grid Applications - Image 1](https://m.media-amazon.com/images/I/61vUuLIbV+L.jpg)

## Available Options

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

## Questions & Answers

**Q: does the battery's BMC have low temperature protection?**
A: Our BMS can allow the 12v 100ah batteries to be charged at low temp environment from 32°F To 140°F and discharge at low temp environment from -4°F To 140°F.

**Q: can i use four of your lithium iron batteries connected in series, so it's 48v, with my 5000w electric bike motor and 48-72v 80ah controller?**
A: The battery protection board is 100A, if your controller current exceeds 100A, it cannot be used, The controller current can be used within 100A.thank you.

**Q: Will this 100ah battery support my 12v system boat for cranking and accessories? (55lb thrust trolling motor, lights, fish finder, buldge/aera pump?)**
A: Yes

**Q: Would it be ok to put 2 of these batteries in parrallel to use with a 12v 30amp solar charge controller?**
A: If it is two identical batteries, it can be used in parallel, thank you.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great kayak battery
*by G***N on December 13, 2025*

Holds its charge, is light,and is reliable. I use it on my 10 foot kayak for range and time on the water.

### ⭐⭐⭐⭐⭐ Powerhouse
*by C***O on August 19, 2025*

Great little battery right here. We purchased 4 of them just to try them out and they are light weight, come charged, and so far doing what I need them to do. I will be buying lots more of these.

### ⭐⭐⭐⭐⭐ Great Value
*by D***L on September 19, 2025*

Great buy. Good quality and last for hours with my 35 lb thrust trolling motor

## Frequently Bought Together

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-10*