--- product_id: 769168121 title: "Smart 4S BMS 12V 250A with WiFi Module and CAN 485 Communication Protection Board for Li-ion Lithium Battery Pack(Li-ion 4S 12V，250A)" brand: "daly" price: "B/.664" currency: PAB in_stock: true reviews_count: 5 category: "Daly" url: https://www.desertcart.com.pa/products/769168121-smart-4s-bms-12v-250a-with-wifi-module-and-can store_origin: PA region: Panama --- # 250A high current capacity WiFi remote monitoring Multi-protocol CAN & RS485 communication Smart 4S BMS 12V 250A with WiFi Module and CAN 485 Communication Protection Board for Li-ion Lithium Battery Pack(Li-ion 4S 12V，250A) **Brand:** daly **Price:** B/.664 **Availability:** ✅ In Stock ## Summary > 🔋 Stay ahead of the charge curve with DALY Smart 4S BMS — power, protection, and control in your pocket! ## Quick Answers - **What is this?** Smart 4S BMS 12V 250A with WiFi Module and CAN 485 Communication Protection Board for Li-ion Lithium Battery Pack(Li-ion 4S 12V，250A) by daly - **How much does it cost?** B/.664 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/769168121-smart-4s-bms-12v-250a-with-wifi-module-and-can) ## 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 - • **Compact & Intelligent Design:** Smaller footprint with low temperature rise, pre-charging, and passive balancing for optimized battery longevity. - • **Robust 250A Current Handling:** Power through demanding applications with high 250A continuous current support. - • **Advanced Multi-Protection Suite:** Comprehensive safeguards including overcharge, overdischarge, short circuit, temperature, and waterproof protection. - • **Seamless Remote Battery Monitoring:** Stay connected anywhere via WiFi-enabled real-time battery status alerts on your smartphone. - • **Versatile Communication Interfaces:** Expand your system effortlessly with CAN, RS485, and dual UART ports for diverse integration needs. ## Overview The DALY Smart 4S BMS 12V 250A is a cutting-edge battery management system designed for Li-ion 4S 12V packs, delivering robust 250A current capacity with advanced multi-layer protection. Featuring WiFi connectivity for remote monitoring and alerts, plus versatile CAN, RS485, and UART communication ports, it ensures seamless integration and real-time control. Its compact design includes pre-charging and passive balancing functions, making it an essential upgrade for professionals demanding reliable, smart battery management. ## Description Buy DALY Smart 4S BMS 12V 250A with WiFi Module and CAN 485 Communication Protection Board for Li-ion Lithium Battery Pack(Li-ion 4S 12V，250A): Modules - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Works - It's a Daly BMS.cant expect anything less. Easy to install,great price built quality is great Review: Price vs quality - It might work for some people, possible it depemds on their phone/pc software. Once I had this connected to a 36volts battery, I was able to read the cells information and charge status. But secomd day the BMS went into sleep and could not wake it up even by pressing the wireless device button, I had to turn on the charger, then for some reason it woke up amd I could read the status on the app. Ballancing is not doing a good job for be. After the full charge and overnight, the cells were still almost 500mv apart, even the Active ballance tab in the app stated that it does ballance at -3000mA at times. I received a number of errors stating that tjis application has a bug and it needs to close. It was annoying to have this restarted, a brand new device. Then I tried to update the app the default passowrd is not working. Went onlime and read a few comments posted by unhappy customers who bricked their Daly BMS during the update. That was 2022. Now I am in Sept2025, ai assumed that was resolved. But these app bugs makes me return the product. Otherwise it looks good and solid made...in China. ## Features - 【Multiple Protection】Overcharge Protection; Overdischarge Protection; Overcurrent Protection; Short circuit Protection; Temperature Protection;Waterproof Protection. - 【New Upgrade】Smaller size; Parallel protection; Pre-charging function; 100mA passive equalization current; Low temperature rise; Working condition indicator;Consistent Chg/Dischg cuurrent. - 【Smart BMS】With the WiFi module, lithium batteries can be remotely monitored through the Internet, regardless of the distance.When the BMS detects any abnormality in the battery pack, it will send alert via the smartphone app. - 【DALY BMS】Multiple communication functions+ expansion function ports,CAN, RS485, dual UART communication interfaces,rich expansion applications.If you need Touch Screen,active balancer, parallel module or other accessories, please contact online customer service. - 【Quality Guarantee】We provide 24-hour one-on-one customer service and technical support.If you have any questions,please feel free to contact us.--- ISO/ FCC/ RoHS/ PSE/ CE APPROVED ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CXXDW7WW | | Best Sellers Rank | #184,687 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #736 in Power Converters | | Brand | DALY | | Color | Li-ion 4S 12V | | Customer Reviews | 4.2 out of 5 stars 15 Reviews | | Item Dimensions | 7.2 x 4.25 x 1.02 inches | | Item Height | 26 millimeters | | Item dimensions L x W x H | 7.2 x 4.25 x 1.02 inches | | Manufacturer | Dongguan Daly Electronics Co., Ltd | | Output Voltage | 12 Volts | | UPC | 784868983520 | ## Product Details - **Brand:** DALY - **Color:** Li-ion 4S 12V - **Item dimensions L x W x H:** 7.2 x 4.25 x 1.02 inches - **Output Voltage:** 12 Volts - **UPC:** 784868983520 ## Images ![Smart 4S BMS 12V 250A with WiFi Module and CAN 485 Communication Protection Board for Li-ion Lithium Battery Pack(Li-ion 4S 12V，250A) - Image 1](https://m.media-amazon.com/images/I/61pLb5aVWHL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works *by M***G on March 22, 2025* It's a Daly BMS.cant expect anything less. Easy to install,great price built quality is great ### ⭐⭐⭐ Price vs quality *by G***E on September 30, 2025* It might work for some people, possible it depemds on their phone/pc software. Once I had this connected to a 36volts battery, I was able to read the cells information and charge status. But secomd day the BMS went into sleep and could not wake it up even by pressing the wireless device button, I had to turn on the charger, then for some reason it woke up amd I could read the status on the app. Ballancing is not doing a good job for be. After the full charge and overnight, the cells were still almost 500mv apart, even the Active ballance tab in the app stated that it does ballance at -3000mA at times. I received a number of errors stating that tjis application has a bug and it needs to close. It was annoying to have this restarted, a brand new device. Then I tried to update the app the default passowrd is not working. Went onlime and read a few comments posted by unhappy customers who bricked their Daly BMS during the update. That was 2022. Now I am in Sept2025, ai assumed that was resolved. But these app bugs makes me return the product. Otherwise it looks good and solid made...in China. ### ⭐⭐⭐⭐⭐ As described *by H***S on October 23, 2024* BMS for my 14 cell 58.8 V battery storage --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.pa/products/769168121-smart-4s-bms-12v-250a-with-wifi-module-and-can](https://www.desertcart.com.pa/products/769168121-smart-4s-bms-12v-250a-with-wifi-module-and-can) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-07-29*