--- product_id: 740724110 title: "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" brand: "daly" price: "FREE" currency: EUR in_stock: false url: https://www.desertcart.be/products/740724110-daly-battery-equalizer-4s-1a-with-bluetooth-app-and-wire store_origin: BE region: Belgium --- # 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 **Brand:** daly **Price:** FREE **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** 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 by daly - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/740724110-daly-battery-equalizer-4s-1a-with-bluetooth-app-and-wire) ## Best For - daly enthusiasts ## Why This Product - Trusted daly brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description This is DALY Smart Active Balancer is friendly to all bms , can be used in parallel and fast equalized the voltage difference . Daly Smart active balancer with a bluetooth dongle , can be check each cell voltage in real time Pls be sure that active balancer cannot be used as an BMS !!! if you want to keep your battery pack in healthy condition long life cycle , please use daly bms and daly active balancer together. You are welcome to buy daly products in the only DALY OFFICIAL STORE. Any questions pls contact our online service directly ~ ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B5LJY981 | | Best Sellers Rank | #131,315 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #506 in Power Converters | | Brand | DALY | | Color | Smart Active Balancer | | Customer Reviews | 4.0 out of 5 stars 92 Reviews | | Input Voltage | 3.7 Volts | | Item Dimensions | 2.36 x 1.38 x 0.7 inches | | Item dimensions L x W x H | 2.36 x 1.38 x 0.7 inches | | Manufacturer | Dongguan Daly Electronics Co., Ltd | | Mfr Part Number | AB-1 | | Model Number | 4S 1A B0B5LJY981 | | Output Voltage | 3.7 Volts | | Plug Format | Type A | | Plug Type | Type A | | UPC | 768655913440 | | Unit Count | 1 Count | ## Product Details - **Brand:** DALY - **Colour:** Smart Active Balancer - **Item dimensions L x W x H:** 6 x 3.5 x 1.8 centimetres - **UPC:** 768655913440 ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/61I9abwkQUL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/71NyW7s-5IL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/71ImZg6vDhL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/61n-4O9sAmL.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/61qLIV1QK0L.jpg) ## Questions & Answers **Q: Why do you need this and a bms? the bms is supposed to balance as well?** A: Most BMS will only balance while the batteries are charging. The active balancer works all the time. It takes current from a battery with high voltage and sends it to a battery with lower voltage. **Q: can the 20s also be used for a 14s and 16s battery and Lifepo4 and LI** A: I cannot say for sure-- but I wouldn't think so. The unit comes with the number of leads to match the cells and I don't believe it would function correctly without the same number of battery cells connected. **Q: Will this balancer work without a BMS?** A: Yes it will. You can actively monitor the state of your battery via blue tooth app and it works quite efficiently. Good for older out of balance battery packs. **Q: Why does daly balancer show diferent voltage on the app from my original bms? Some times in 30 mV diference** A: Probably the accuracy of the voltage reading. These are not "industrial grade" instruments. they are consumer level. A 30mV difference is not too big and nothing to be concerned over. ## Frequently Bought Together - 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 - DALY Smart BMS 4S 12V 100A with WiFi Module and CAN 485 Communication Protection Board for Remote Monitoring of LifePO4 Lithium Battery Pack --- ## 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.be/products/740724110-daly-battery-equalizer-4s-1a-with-bluetooth-app-and-wire](https://www.desertcart.be/products/740724110-daly-battery-equalizer-4s-1a-with-bluetooth-app-and-wire) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-11*