--- product_id: 451457672 title: "5PCS 2S 7.4V 8.4V 8A 18650 Charging Protection Board PCB BMS Protection Board for Li-ion Lithium Battery Cell" brand: "penglin" price: "¥3296" currency: JPY in_stock: true category: "Penglin" url: https://www.desertcart.jp/products/451457672-5pcs-2s-7-4v-8-4v-8a-18650-charging-protection store_origin: JP region: Japan --- # 8A high current rating 7.4V-8.4V voltage range 4-fold multi-protection system 5PCS 2S 7.4V 8.4V 8A 18650 Charging Protection Board PCB BMS Protection Board for Li-ion Lithium Battery Cell **Brand:** penglin **Price:** ¥3296 **Availability:** ✅ In Stock ## Summary > 🛠️ Power up with confidence—because your battery deserves the best protection! ## Quick Answers - **What is this?** 5PCS 2S 7.4V 8.4V 8A 18650 Charging Protection Board PCB BMS Protection Board for Li-ion Lithium Battery Cell by penglin - **How much does it cost?** ¥3296 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/451457672-5pcs-2s-7-4v-8-4v-8a-18650-charging-protection) ## Best For - penglin enthusiasts ## Why This Product - Trusted penglin brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Durable PCB with a lifespan exceeding 50,000 hours keeps your power systems reliable and worry-free. - • **Ultimate Safety Shield:** Overcharge, over-discharge, overcurrent, and short circuit protections guard your devices 24/7. - • **Energy-Efficient Design:** Low standby current thanks to MOS transistor control maximizes battery life and efficiency. - • **Versatile Compatibility:** Fits a wide range of 3.7V lithium batteries—ideal for everything from LED lights to solar street lamps. - • **Precision Voltage Control:** High-accuracy detection ensures your battery stays perfectly balanced and safe. ## Overview The PENGLIN 5PCS 2S 7.4V 8.4V 8A 18650 Charging Protection Board is a high-precision, durable PCB designed to safeguard lithium-ion battery cells. Featuring a robust 4-layer protection system against overcharge, over-discharge, overcurrent, and short circuits, it ensures optimal battery performance and longevity. With low standby current consumption and broad compatibility, this board is perfect for professional-grade battery packs in various applications, from solar lighting to backup power supplies. ## Description Shop PENGLIN 5PCS 2S 7.4V 8.4V 8A 18650 Charging Protection Board PCB BMS Protection Board for Li-ion Lithium Battery Cell. Free delivery and returns on eligible orders. ## 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 for your devices, your chargers and most importantly:you. - 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+: Battery V+ Positive, B-: Battery V- Negative, P+: Output / Charging V+, P-: Output / Charging V-, MB: The connection point between the batteries.Otherwise it will cause damage to the chip. Do not mix the good battery and poor battery to use. The internal resistance of 3 battery capacity are closer will be better. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B1MBHW3X | | Amperage | 8 Amps | | Best Sellers Rank | 51,383 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,050 in International Power Adapters | | Brand Name | PENGLIN | | Colour | Blue | | Connector Types | Battery Connector | | Country of Origin | China | | Current Rating | 8 Amps | | Customer Reviews | 3.8 3.8 out of 5 stars (31) | | Input Voltage | 8.4 Volts | | Item Weight | 0.02 Kilograms | | Manufacturer | PENGLIN | | Number of Items | 1 | | Number of Packs | 1 | | Number of Ports | 4 | | Output Voltage | 8.4 Volts | | Product Warranty | 1 | | Specification Met | CE | | Unit Count | 5 | ## Product Details - **Brand:** PENGLIN - **Colour:** Blue - **Item weight:** 0.02 Kilograms - **Output voltage:** 8.4 Volts - **Specification met:** CE ## Images ![5PCS 2S 7.4V 8.4V 8A 18650 Charging Protection Board PCB BMS Protection Board for Li-ion Lithium Battery Cell - Image 1](https://m.media-amazon.com/images/I/71eWiE+NLiL.jpg) ## Available Options This product comes in different **Size** options. --- ## 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.jp/products/451457672-5pcs-2s-7-4v-8-4v-8a-18650-charging-protection](https://www.desertcart.jp/products/451457672-5pcs-2s-7-4v-8-4v-8a-18650-charging-protection) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-02*