---
product_id: 667507336
title: "DALY Smart BMS 4S-16S 40A-500A with WiFi Module and CAN 485 Communication Protection Board for LifePO4 Lithium Battery Pack (Smart BMS 4S 12V，300A)"
brand: "daly"
price: "$460.30"
currency: USD
in_stock: true
reviews_count: 10
category: "Daly"
url: https://www.desertcart.us/products/667507336-daly-smart-bms-4s-16s-40a-500a-with-wifi-module
store_origin: US
region: United States of America
---

# Dual BT/Wi-Fi remote control 4S-16S LiFePO4 support CAN/485 parallel communication DALY Smart BMS 4S-16S 40A-500A with WiFi Module and CAN 485 Communication Protection Board for LifePO4 Lithium Battery Pack (Smart BMS 4S 12V，300A)

**Brand:** daly
**Price:** $460.30
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay charged, stay connected — the smart BMS your battery deserves!

## Quick Answers

- **What is this?** DALY Smart BMS 4S-16S 40A-500A with WiFi Module and CAN 485 Communication Protection Board for LifePO4 Lithium Battery Pack (Smart BMS 4S 12V，300A) by daly
- **How much does it cost?** $460.30 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/667507336-daly-smart-bms-4s-16s-40a-500a-with-wifi-module)

## 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

- • **Parallel Powerhouse:** Supports parallel battery packs and CAN/485 bus communication, perfect for modern inverter setups.
- • **Certified Reliability:** ISO, FCC, RoHS, PSE, and CE approved with a 3-year warranty—engineered for peace of mind and professional-grade performance.
- • **Plug & Play Installation:** Comes with all cables and accessories for a quick, hassle-free setup—get your system running in no time.
- • **Ultimate Battery Guardian:** Protects against overcharge, overdischarge, overcurrent, short circuits & extreme temps for max battery lifespan.
- • **Seamless Remote Monitoring:** Switch effortlessly between Bluetooth and Wi-Fi to track and tweak battery status from anywhere via app or PC.

## Overview

The DALY Smart BMS 4S-16S is a cutting-edge battery management system designed for LifePO4 lithium packs, offering comprehensive protection and advanced remote monitoring via Bluetooth and Wi-Fi. With support for parallel battery configurations and CAN/485 communication, it ensures optimal performance and longevity. Certified and backed by a 3-year warranty, it’s the professional’s choice for smart, reliable battery management.

## Description

Buy DALY Smart BMS 4S-16S 40A-500A with WiFi Module and CAN 485 Communication Protection Board for LifePO4 Lithium Battery Pack (Smart BMS 4S 12V，300A): Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works just fine. - I bought this in hopes that it would fix the bad 12v 100Ah LiFePO4 battery that I bought. It solved the problem. I had charged up the near dead cells with a power supply. This BMS brought all the cells up to there fully charged point and balanced the entire battery. The only thing, if I had known 100 % that this was the fix I would have bought the version with the remote readout. Good product, it is working fine, I been checking it every few days since I installed it. Now it's time to seal up the battery pack. Recommended!! Good buy.
Review: Works great - Why did you pick this product vs others?: becuase i have daly product and works fine. Build quality: Good Noise level: no noise Connection quality: App works great and the green light when on/charging is very bright. Ease of installation: Yes, it was more ease if the cables where label. Usb ports: Bluetooth / and the CAN/RS485 cable Functionality: S16 51.2V Battery.

## Features

- Enhanced Battery Safety: Daly 12V BMS 4S offers protection against overcharging, overdischarging, overcurrent, short circuits and extreme temperature, ensuring the safety and longevity of your battery pack.
- 2-in-1 Bluetooth/Wi-Fi Dongle: Easily connect with the app via Bluetooth, or switch to Wi-Fi for long-distance control when Bluetooth is out of range (requires connection to a Wi-Fi router). Remotely monitor battery status and adjust parameters via the mobile app or PC software – whether you're at home, traveling, or operating a trolling motor.
- Remotely monitor battery status and adjust parameters via the mobile app or PC software – whether you're at home, traveling, or operating a trolling motor.
- The built-in parallel circuit of Daly BMS can support the parallel use of battery packs and 485/CAN Bus parallel communication, which is suitable for mainstream inverters on the market.
- 3 Years Warranty. Packing List: 4S 12V 300 amp Smart BMS (x1), B-P-Output Line (x2), 2-in-1 BT/Wi-Fi Dongle (x1), Sampling Cable (x1), NTC (x1), CAN/485 5-pin (x1), Manual (x1). Easy to install, everything you need for setup and operation.ISO/FCC/RoHS/PSE/CE APPROVED.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CXTBH8ZR |
| Best Sellers Rank | #101,386 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #372 in Power Converters |
| Customer Reviews | 4.0 4.0 out of 5 stars (214) |
| Date First Available | March 12, 2024 |
| Item Weight | 1.5 pounds |
| Item model number | Daly Smart BMS 4S-16S 40A-500A |
| Manufacturer | Dongguan Daly Electronics Co., Ltd |
| Product Dimensions | 7.2 x 4.25 x 1.02 inches |

## Product Details

- **Brand:** DALY
- **Color:** 4S 12V
- **Input Voltage:** 120 Volts
- **Item dimensions L x W x H:** 7.2 x 4.25 x 1.02 inches
- **Output Voltage:** 12 Volts

## Images

![DALY Smart BMS 4S-16S 40A-500A with WiFi Module and CAN 485 Communication Protection Board for LifePO4 Lithium Battery Pack (Smart BMS 4S 12V，300A) - Image 1](https://m.media-amazon.com/images/I/611gvG8BlRL.jpg)
![DALY Smart BMS 4S-16S 40A-500A with WiFi Module and CAN 485 Communication Protection Board for LifePO4 Lithium Battery Pack (Smart BMS 4S 12V，300A) - Image 2](https://m.media-amazon.com/images/I/71DMoXxSZHL.jpg)
![DALY Smart BMS 4S-16S 40A-500A with WiFi Module and CAN 485 Communication Protection Board for LifePO4 Lithium Battery Pack (Smart BMS 4S 12V，300A) - Image 3](https://m.media-amazon.com/images/I/71wP8htWp-L.jpg)
![DALY Smart BMS 4S-16S 40A-500A with WiFi Module and CAN 485 Communication Protection Board for LifePO4 Lithium Battery Pack (Smart BMS 4S 12V，300A) - Image 4](https://m.media-amazon.com/images/I/71ZM+QpUZNL.jpg)
![DALY Smart BMS 4S-16S 40A-500A with WiFi Module and CAN 485 Communication Protection Board for LifePO4 Lithium Battery Pack (Smart BMS 4S 12V，300A) - Image 5](https://m.media-amazon.com/images/I/71G8VcC-JAL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works just fine.
*by O***7 on July 19, 2024*

I bought this in hopes that it would fix the bad 12v 100Ah LiFePO4 battery that I bought. It solved the problem. I had charged up the near dead cells with a power supply. This BMS brought all the cells up to there fully charged point and balanced the entire battery. The only thing, if I had known 100 % that this was the fix I would have bought the version with the remote readout. Good product, it is working fine, I been checking it every few days since I installed it. Now it's time to seal up the battery pack. Recommended!! Good buy.

### ⭐⭐⭐⭐⭐ Works great
*by E***R on July 7, 2025*

Why did you pick this product vs others?: becuase i have daly product and works fine. Build quality: Good Noise level: no noise Connection quality: App works great and the green light when on/charging is very bright. Ease of installation: Yes, it was more ease if the cables where label. Usb ports: Bluetooth / and the CAN/RS485 cable Functionality: S16 51.2V Battery.

### ⭐⭐⭐⭐ not bad, not bad at all
*by K***K on August 26, 2024*

i got 4 of these to maintain 4 banks of 320ah lifepo cells, 16 total, 4 per pack. it was very aggrivating trying to install these with little to no documentation, yea, there's videos but they dont really go into much detail. to all buyers, know this, "THEY WILL NOT ACTIVATE UNTIL YOU PUT A CHARGE TO THEM. this does not matter if your cells are pre-charged for storage or not. once there is a push to them through the bms, they will come alive. however, without putting a charge to the bms/battery bank, they will NEVER come online, and they will NEVER be seen by the APP. it was very aggrivating that i couldnt check the bank before connecting it to my system. i had to build the bank, and hope for the best then connect it up and attempt a charge.. before i could even see the bms.. which sucks from an engineering standpoint. also keep in mind, these bms do get hot, they do not have a built in cooling fan..something to consider.. they maybe only 100 amp, but they do get hot when they are pushed to 80-90 amps.. otherwise, once they are up and running, they do pretty good. i've had them on a 43 foot sailboat behind a victron 3k-watt inverter, and they doing great.. just wish they would make it do MPPT modbus over tcp.. its a basic protocol, so i dont know why they dont do it. it would also help if the wireless module wasn't just bluetooth. so i'm building a esp32 gateway to convert ra485 to mppt modbus so that i can read them with my victron cerebro gx. will buy them again if i ever build another cell bank..

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-03*