--- product_id: 224544652 title: "Aideepen 3PCS 3S 20A Li-ion Lithium Battery Charger Board PCB BMS 12.6V Cell Module Overcharge Overcurrent Short Circuit Protection" brand: "aideepen" price: "54.11 DT" currency: TND in_stock: true reviews_count: 13 category: "Aideepen" url: https://www.desertcart.tn/products/224544652-aideepen-3pcs-3s-20a-li-ion-lithium-battery-charger-board store_origin: TN region: Tunisia --- # 20A high current rating 3S 12.6V Li-ion battery support Overcharge & short circuit protection Aideepen 3PCS 3S 20A Li-ion Lithium Battery Charger Board PCB BMS 12.6V Cell Module Overcharge Overcurrent Short Circuit Protection **Brand:** aideepen **Price:** 54.11 DT **Availability:** ✅ In Stock ## Summary > 🔋 Power your projects with precision and protection — never settle for less! ## Quick Answers - **What is this?** Aideepen 3PCS 3S 20A Li-ion Lithium Battery Charger Board PCB BMS 12.6V Cell Module Overcharge Overcurrent Short Circuit Protection by aideepen - **How much does it cost?** 54.11 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/224544652-aideepen-3pcs-3s-20a-li-ion-lithium-battery-charger-board) ## Best For - aideepen enthusiasts ## Why This Product - Trusted aideepen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Triple Safety Shield:** Integrated overcharge, overcurrent, and short circuit protection ensures ultimate battery longevity and safety. - • **Plug & Play Confidence:** Clear wiring diagram and activation process minimize setup errors—engineered for pros who demand reliability. - • **Versatile Compatibility:** Optimized for 3.6V-3.7V Li-ion cells, ideal for DIY projects and professional-grade power tools. - • **Compact Precision Design:** Slim 64x20x3.4mm PCB fits seamlessly into your custom battery packs without bulk. - • **Power-Packed 20A Current:** Handles up to 20 amps for robust battery management, perfect for demanding drill motors. ## Overview The Aideepen 3PCS 3S 20A Li-ion Battery Charger Board is a compact, high-performance BMS module designed for 12.6V lithium battery packs. It supports up to 20 amps continuous current with built-in overcharge, overcurrent, and short circuit protection, making it ideal for drill motors and DIY battery projects. Its slim form factor and clear wiring instructions ensure easy integration and reliable operation, backed by strong user reviews praising its efficiency and safety features. ## Description Product Description Features Precautions 1.Strictly according to the diagram wiring: 0V/4.2V/8.4V/12.6V,Otherwise it will cause damage to the chip. 2.After connection,it need to first charge activation, then will have the output. Attention Do not mix the good battery and poor battery to use. The internal resistance of 3 battery capacity are closer will be better. Please buyers know the professional knowledge of this module before buying Package Included 3/5 x 3S 20A Li-ion Lithium Battery 18650 Charger piece B BMS Protection Board 12.6V Cell 3PCS（B08FY6TNWY） 5PCS（B08FT59NMG） Review: Almost perfect - Got these to build a 12 volt battery pack for a pond pump. Using 24 x 18650 Samsung batteries from a dead E-bike pack and one of these boards, I soon had my pump up and running. The pump pulls 1.5 amps and runs for about 2 hours a day. Charging is from a 25 watt solar panel and charge controller. Only problem is the transistors on the board get very hot at times when charging. A small aluminium heatsink solved that! I used an old low voltage, programable timer to switch the pump on and off. Now working a treat. At just over a pound for the BMS, I am very happy with the result. And I have two spare....just in case! 25/8/24 Now built a second battery pack for another job, and decided to see if the low voltage protection done its job. It did. At 2.4 volts per cell, it just shut down. Put it on charge (small solar charging setup) and was back up and running a few hours later. And I still have a spare board for a future project. Review: Good price. - All fine, worked as exspected. ## Features - 【3S20A】3S 20A Li-ion Lithium Battery Charger PCB BMS Protection Board For Drill Motor 12.6V Lipo Cell Module - 【Design compact】Module name: 3S 12.6V Li-ion Lithium Battery Charger Protection PCB Board;Suitable range: For nominal voltage 3.6V 3.7V lithium battery; Product Size: 64mmx20mmx3.4mm. - 【Note1】 Standard Version:suitable for starting current below 40A, power 65W below the drill.Enhanced Version:suitable for starting current below 60A, power 100W below the drill. - 【Note2】1. Strictly according to the diagram wiring: 0V/4.2V/8.4V/12.6V,Otherwise it will cause damage to the chip. 2. After connection,it need to first charge activation, then will have the output. - Working Current:20A, PCB size: 59 X 20 X 3.4mm/2.32 X 0.79 X 0.13inch(L*W*H) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08FY6TNWY | | Amperage | 20 Amps | | Best Sellers Rank | 13,301 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 112 in Household Battery Chargers | | Brand | Aideepen | | Brand Name | Aideepen | | Colour | As Show | | Compatible Devices | Lithium batteries (3.6V or 3.7V, up to 20A) for drill motors | | Connector Types | DC Power Jack | | Country of Origin | China | | Current Rating | 20 Amps | | Customer Reviews | 4.5 out of 5 stars 548 Reviews | | Input Voltage | 12.6 Volts | | Item Dimensions D x W x H | 3D x 20W x 64H millimetres | | Item Weight | 10 Grams | | Item weight | 10 Grams | | Manufacturer | Aideepen | | Manufacturer Part Number | A70122053UK | | Model Number | A70122053UK | | Number of Ports | 3 | | Output Voltage | 12.6 Volts | | Output voltage | 12.6 Volts | | Product dimensions | 3D x 20W x 64H millimetres | | Specification Met | CE | | Specification met | CE | | Unit Count | 3.0 count | ## Product Details - **Brand:** Aideepen - **Colour:** As Show - **Item weight:** 10 Grams - **Output voltage:** 12.6 Volts - **Product dimensions:** 3D x 20W x 64H millimetres ## Images ![Aideepen 3PCS 3S 20A Li-ion Lithium Battery Charger Board PCB BMS 12.6V Cell Module Overcharge Overcurrent Short Circuit Protection - Image 1](https://m.media-amazon.com/images/I/81eVcKtvtPL.jpg) ![Aideepen 3PCS 3S 20A Li-ion Lithium Battery Charger Board PCB BMS 12.6V Cell Module Overcharge Overcurrent Short Circuit Protection - Image 2](https://m.media-amazon.com/images/I/71YVdMuPMXL.jpg) ![Aideepen 3PCS 3S 20A Li-ion Lithium Battery Charger Board PCB BMS 12.6V Cell Module Overcharge Overcurrent Short Circuit Protection - Image 3](https://m.media-amazon.com/images/I/61roM6l7caL.jpg) ![Aideepen 3PCS 3S 20A Li-ion Lithium Battery Charger Board PCB BMS 12.6V Cell Module Overcharge Overcurrent Short Circuit Protection - Image 4](https://m.media-amazon.com/images/I/71FFQclEHfL.jpg) ![Aideepen 3PCS 3S 20A Li-ion Lithium Battery Charger Board PCB BMS 12.6V Cell Module Overcharge Overcurrent Short Circuit Protection - Image 5](https://m.media-amazon.com/images/I/71zvJKz98mL.jpg) ## Questions & Answers **Q: With on of these fitted to a 3s 18650 battery , can i use a 12v charger designed for SLS battery will the board cut the charging off when its reached** A: I don't believe you can. My board is used to charge a 12.6V 18650 battery pack with a similar output battery charger **Q: Can the input be a 12 volt solar panel?** A: No you need a proper BMS controller for solar panels. **Q: Could anyone tell me the low voltage cutoff point?** A: It’s approximately 3.4V lower and 4.2v for the high point per cell. So x that by 3 to get the value. 10.4 & 12.6v for a 3S charger. **Q: What is the input voltage? can you use usb charger to recharge the batteries?** A: Hello, this can not be charged, the input voltage is DC 12.6-13V ## Customer Reviews ### ⭐⭐⭐⭐⭐ Almost perfect *by S***G on 18 August 2024* Got these to build a 12 volt battery pack for a pond pump. Using 24 x 18650 Samsung batteries from a dead E-bike pack and one of these boards, I soon had my pump up and running. The pump pulls 1.5 amps and runs for about 2 hours a day. Charging is from a 25 watt solar panel and charge controller. Only problem is the transistors on the board get very hot at times when charging. A small aluminium heatsink solved that! I used an old low voltage, programable timer to switch the pump on and off. Now working a treat. At just over a pound for the BMS, I am very happy with the result. And I have two spare....just in case! 25/8/24 Now built a second battery pack for another job, and decided to see if the low voltage protection done its job. It did. At 2.4 volts per cell, it just shut down. Put it on charge (small solar charging setup) and was back up and running a few hours later. And I still have a spare board for a future project. ### ⭐⭐⭐⭐⭐ Good price. *by K***R on 27 January 2026* All fine, worked as exspected. ### ⭐⭐⭐⭐ Test the device before connecting and beware of battery's heating up during fitting *by K***D on 11 September 2025* Excellent for lithium battery protection ## Frequently Bought Together - Aideepen 3PCS 3S 20A Li-ion Lithium Battery Charger Board PCB BMS 12.6V Cell Module Overcharge Overcurrent Short Circuit Protection - AEDIKO 8pcs 18650 Battery Holder 1/2/3/4 Slots 18650 Battery Holder with Wire for DIY Parallel or Series Circuit PCB Projects --- ## 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.tn/products/224544652-aideepen-3pcs-3s-20a-li-ion-lithium-battery-charger-board](https://www.desertcart.tn/products/224544652-aideepen-3pcs-3s-20a-li-ion-lithium-battery-charger-board) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-10*