--- product_id: 407081892 title: "12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell" brand: "aceirmc" price: "6876 Ft" currency: HUF in_stock: true category: "Aceirmc" url: https://www.desertcart.hu/products/407081892-12pcs-1s-3-7v-4a-18650-charger-pcb-bms-protection store_origin: HU region: Hungary --- # 4A max charge current 3.7V nominal voltage support 4-layer multi-protection system 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell **Brand:** aceirmc **Price:** 6876 Ft **Availability:** ✅ In Stock ## Summary > 🛠️ Power up with precision and protection — don’t get left in the dark! ## Quick Answers - **What is this?** 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell by aceirmc - **How much does it cost?** 6876 Ft with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/407081892-12pcs-1s-3-7v-4a-18650-charger-pcb-bms-protection) ## Best For - aceirmc enthusiasts ## Why This Product - Trusted aceirmc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Durability rated for over 50,000 hours of reliable operation—engineered for the long haul. - • **Safety First, Always:** Integrated overcharge, over-discharge, short circuit, and overcurrent protections keep your battery and devices secure. - • **Ultra-Low Standby Drain:** MOS transistor technology minimizes power loss, maximizing battery life when idle. - • **Versatile Compatibility:** Perfect for 3.7V lithium batteries across massagers, solar lights, LED backups, and more—future-proof your power solutions. - • **Precision Power Management:** High-accuracy voltage detection ensures your batteries charge safely and efficiently. ## Overview The ACEIRMC 12-pack 1S 3.7V 4A 18650 Charger PCB BMS Protection Boards deliver high-accuracy voltage control and robust multi-layer safety features, including overcharge, over-discharge, short circuit, and overcurrent protection. Designed for durability with a lifespan exceeding 50,000 hours and ultra-low standby current, these boards are ideal for a wide range of lithium-ion battery applications, ensuring efficient, safe, and long-lasting battery management. ## Description desertcart.com: ACEIRMC 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell : Electronics ## Features - HIGH-ACCURACY, HIGHLY DURABLE: High-accuracy voltage detection circuit, fine workmanship and durable, Effective life greater than 50000 hours. - MULTIPLE PROTECTION: Over-discharge protection, overcurrent protection, overcharge protection, short circuit protection; A combination of 4 safety features that work together to provide ultimate protection - LOW STANDBY CURRENT: MOS transistor can control the battery charge and discharge, low standby current consumption. - WIDELY APPLICATIONS: Use for variety of capacities and various shapes 3.7V lithium batteries,Massager battery pack, LED light backup power supply, solar street light battery pack, monitor standby power supply, etc. - ATTENTION: Strictly according to the diagram wiring: B+: connected battery positive, B-: connect to battery negative, P+: connection charge / discharge positive, P- connection charge / discharge negative, Otherwise it will cause damage to the chip. After connection,it need to first charge activation, then will have the output. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09B1VY1BY | | Best Sellers Rank | #93,159 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #326 in Power Converters | | Brand | ACEIRMC | | Color | green black | | Customer Reviews | 4.6 4.6 out of 5 stars (49) | | Input Voltage | 3.7 volts | | Manufacturer | ACEIRMC | | Model Number | 4fba7e28-a726-4f73-9e65-03b31eec2a50 | | Number of Items | 12 | | Number of Packs | 1 | | Output Voltage | 4.2 volts | | Plug Type | Type B | | UPC | 701715479210 | | Unit Count | 12 Count | | Warranty Description | 1 | ## Product Details - **Brand:** ACEIRMC - **Color:** green black - **Input Voltage:** 3.7 volts - **Output Voltage:** 4.2 volts - **Plug Format:** Type B ## Images ![12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell - Image 1](https://m.media-amazon.com/images/I/71Qbm+N-BnL.jpg) ## Frequently Bought Together - ACEIRMC 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell - KOOBOOK 10pcs 3A BMS Protection Board with Solder Belt for 1S 3.7V 18650 Li-ion Lithium Battery Cell Kit - Fafeicy Solar Module,1A 4.4-6.5V Input 4.2V Output LiPo Li-ion Lithium Battery Charger MPPT Solar Controller Module(Without Pin), Module --- ## 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.hu/products/407081892-12pcs-1s-3-7v-4a-18650-charger-pcb-bms-protection](https://www.desertcart.hu/products/407081892-12pcs-1s-3-7v-4a-18650-charger-pcb-bms-protection) --- *Product available on Desertcart Hungary* *Store origin: HU* *Last updated: 2026-10-22*