---
product_id: 279463442
title: "DALY Smart BMS 4S 12V 200A LiFePO4 PCB Protection Board with Balance Leads, Wires 3.2V Battery Protection Module BMS for 18650 Battery Pack 12V with UART(Smart BMS,200A)"
brand: "daly"
price: "208 kr"
currency: ISK
in_stock: false
reviews_count: 8
url: https://www.desertcart.is/products/279463442-daly-smart-bms-4s-12v-200a-lifepo4-pcb-protection-board
store_origin: IS
region: Iceland
---

# Smart Monitoring 200A Power Double Protection DALY Smart BMS 4S 12V 200A LiFePO4 PCB Protection Board with Balance Leads, Wires 3.2V Battery Protection Module BMS for 18650 Battery Pack 12V with UART(Smart BMS,200A)

**Brand:** daly
**Price:** 208 kr
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Power Up Your Battery Game!

## Quick Answers

- **What is this?** DALY Smart BMS 4S 12V 200A LiFePO4 PCB Protection Board with Balance Leads, Wires 3.2V Battery Protection Module BMS for 18650 Battery Pack 12V with UART(Smart BMS,200A) by daly
- **How much does it cost?** 208 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/279463442-daly-smart-bms-4s-12v-200a-lifepo4-pcb-protection-board)

## Best For

- daly enthusiasts

## Why This Product

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

## Key Features

- • **Robust Design:** Waterproof, dustproof, and shockproof for ultimate durability.
- • **Quality Assurance:** Certified with ISO, FCC, RoHS, PSE, and CE for peace of mind.
- • **Smart Connectivity:** Monitor and modify settings via Bluetooth app or PC software.
- • **Comprehensive Support:** Enjoy lifetime technical support and 24/7 customer service.
- • **Maximize Battery Life:** Extend your battery's lifespan with advanced protection features.

## Overview

The DALYSmart BMS 4S 12V 200A LiFePO4 PCB Protection Board is engineered for optimal lithium battery performance, featuring advanced safety measures like overcurrent and temperature protection. With a robust design and smart connectivity options, this BMS ensures your battery packs are not only safe but also efficient and long-lasting.

## Description

Full description not available

## Features

- [DALY BMS]Overcurrent,Overcharge,Overdischarge,Short circuit, Temperature protection.DALY BMS maximizes optimizes the lithium battery performance, and extends the battery lifetime to a large extent.
- [Double Protection]Double protection by injection patent technology and patent shell.Waterproof,dustproof,shockproof and anti-static;High-quality components, pressure-resistant and durable material, high acquisition accuracy.Easy to install.
- [Smart BMS]Check battery status and modify parameters at any time through Bluetooth app or PC Software.Quality Guarantee--- ISO/ FCC/ RoHS/ PSE/ CE APPROVED
- [Note] If you need active balancer, parallel module or other accessories, please contact online customer service.We offer 24-hour one-on-one customer service and lifetime technical support.
- [Packing List]3.2V Lifepo4 BMS*1,Bluetooth Module*1,NTC sensor*1,Sampling cable*1,Uart cable*1,Instruction Manual*1.

## Product Details

- **Brand:** DALY
- **Color:** Smart BMS
- **Item Weight:** 1600 Grams
- **Input Voltage:** 3.75 Volts
- **Item dimensions L x W x H:** 4.72 x 8.7 x 1.26 inches

## Images

![DALY Smart BMS 4S 12V 200A LiFePO4 PCB Protection Board with Balance Leads, Wires 3.2V Battery Protection Module BMS for 18650 Battery Pack 12V with UART(Smart BMS,200A) - Image 1](https://m.media-amazon.com/images/I/71VNz+KYTVL.jpg)
![DALY Smart BMS 4S 12V 200A LiFePO4 PCB Protection Board with Balance Leads, Wires 3.2V Battery Protection Module BMS for 18650 Battery Pack 12V with UART(Smart BMS,200A) - Image 2](https://m.media-amazon.com/images/I/7177AKOaTGL.jpg)
![DALY Smart BMS 4S 12V 200A LiFePO4 PCB Protection Board with Balance Leads, Wires 3.2V Battery Protection Module BMS for 18650 Battery Pack 12V with UART(Smart BMS,200A) - Image 3](https://m.media-amazon.com/images/I/71KdRnpKisS.jpg)
![DALY Smart BMS 4S 12V 200A LiFePO4 PCB Protection Board with Balance Leads, Wires 3.2V Battery Protection Module BMS for 18650 Battery Pack 12V with UART(Smart BMS,200A) - Image 4](https://m.media-amazon.com/images/I/71MKqYDIB7L.jpg)
![DALY Smart BMS 4S 12V 200A LiFePO4 PCB Protection Board with Balance Leads, Wires 3.2V Battery Protection Module BMS for 18650 Battery Pack 12V with UART(Smart BMS,200A) - Image 5](https://m.media-amazon.com/images/I/719V20QZTCS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This BMS Saved a $700 battery!
*by B***H on March 6, 2024*

I had a 250 ah LiFePo4 battery that I bought here on Amazon. Well, It’s a great battery, but it malfunctioned. The on-board BMS (battery management system) went bad. Not sure if they want me to mention their name, so I blurred the logos in the photos. But they make great batteries.I could still connect to the battery’s bluetooth and see that the battery had 13+ volts of power, but the terminals were only getting 1.8 volts. I talked to the battery manufacturer and they told me it had a bad BMS. So they sent me a new battery, but didn’t want the old one back. So instead of trashing it, I decided to see if I could repair it.So I bought this high amp Daly BMS. I was able to get the battery case open quite easily. I thought it was going to be difficult. I had seen some YouTube videos where the kid takes power tools to cut the batteries open. But his one had a silicone seal that was easily pried open. I was able to remove the old BMS, careful to remove all the power leads first. Then install the new Daly. It was quite easy. I did have to reverse the direction of the B- lead so it would reach the terminal, but that was very easy. I slid a small piece of thin plywood under the straps holding the lithium sells together, then zip-tied the BMS to the plywood to keep it from shifting around during transport. It was shallow enough to fit on top of the cells and still replace the cover. I haven’t resealed the cover on yet, I will give it a couple of months to make sure it continues to operation as well as it is now.The only thing I didn’t do was mount the bluetooth transmitter outside the battery case. It has a button you need to push to activate the bluetooth whenever you need it, but I don’t think I will ever need it. And I didn’t want to cut any holes in the case. I have a heavy duty shunt battery monitor that tells me all I need to know. I am a bit of a novice, so I don’t really know that all those readings would tell me anyway.So, I took the two batteries up to my off-grid cabin and connected them in parallel. Everything is working great! But now I have a new problem, I need more solar panels. I have three 100 watt panels, I had set up when I was only running two 100 ah AGM batteries. Now with 500 AH, the solar panels can’t keep up. But that is a good problem to have. But with my small cabin and fully-charged batteries, I could go about 10 days without any sun. I only use it on the weekends, so I think I am set for a while.

### ⭐⭐⭐⭐ Almost no documentation
*by B***. on October 18, 2023*

Works perfect on our boat. Connected to a 12 volts 608 ah eve lifepo4 bank.No active balancing. (Option)

### ⭐ Doesn’t balance
*by A***N on February 29, 2024*

Doesn’t balance batteries, won’t let you configure to balance them. This unit is trash and customer service won’t help me. Number listed on the site is disconnected and chat support never responds

## Frequently Bought Together

- DALY Smart BMS 4S 12V 200A LiFePO4 PCB Protection Board with Balance Leads, Wires 3.2V Battery Protection Module BMS for 18650 Battery Pack 12V with UART(Smart BMS,200A)
- Daly Battery Equalizer 4S 1A with Bluetooth App and Wire Leads and Compatible Active Balancer for Lithium Battery Rated 3.7V 3.2V 2.2V

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**Shop now:** [https://www.desertcart.is/products/279463442-daly-smart-bms-4s-12v-200a-lifepo4-pcb-protection-board](https://www.desertcart.is/products/279463442-daly-smart-bms-4s-12v-200a-lifepo4-pcb-protection-board)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-28*