--- product_id: 459368354 title: "6PCS 2S 7.4V 8.4V 8A 18650 Battery Protection Board PCB BMS Protection Module for Li-ion Lithium Battery Cell" brand: "daier" price: "69.80 DT" currency: TND in_stock: true reviews_count: 4 url: https://www.desertcart.tn/products/459368354-6pcs-2s-7-4v-8-4v-8a-18650-battery-protection store_origin: TN region: Tunisia --- # 16A Instant Current 8A Max Current 4 Safety Protections 6PCS 2S 7.4V 8.4V 8A 18650 Battery Protection Board PCB BMS Protection Module for Li-ion Lithium Battery Cell **Brand:** daier **Price:** 69.80 DT **Availability:** ✅ In Stock ## Summary > 🔒 Protect Your Power with Confidence! ## Quick Answers - **What is this?** 6PCS 2S 7.4V 8.4V 8A 18650 Battery Protection Board PCB BMS Protection Module for Li-ion Lithium Battery Cell by daier - **How much does it cost?** 69.80 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/459368354-6pcs-2s-7-4v-8-4v-8a-18650-battery-protection) ## Best For - daier enthusiasts ## Why This Product - Trusted daier brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Value:** Get 10PCS in one package, ensuring you have enough protection boards for all your projects. - • **Ultimate Safety:** Experience peace of mind with over-discharge, overcurrent, overcharge, and short circuit protection. - • **High Performance:** Handles up to 8A continuous and 16A instantaneous current for robust power delivery. - • **User-Friendly Design:** Follow simple wiring instructions to ensure optimal performance and avoid damage. - • **Versatile Compatibility:** Perfect for a variety of applications including massagers, LED lights, and solar street lights. ## Overview This 6PCS 2S 7.4V 8.4V 8A Battery Protection Board PCB BMS module is designed for lithium-ion batteries, offering multiple safety features and compatibility with various applications. With a maximum working current of 8A and instantaneous current of 16A, it ensures reliable performance while safeguarding your devices. ## Description Specifications: Charging Voltage: 8.4V Overcharge Voltage Range: 4.28V plus or minus 0.05V Overpressure Voltage Range: 2.3V-2.9V plus or minus 0.05V Upper Limit Operating Current: 8A Upper Limit Instantaneous Current: 16A Quiescent Current: less than 30uA Size: 41mm x 8mm x 2.2mm/ 1.61″ ×0.31″×0.09″(L x W x H) Overcharge protection, over discharge protection, short circuit protection, overcurrent protection. Welding Point Description: B + battery anode; B - connect battery negative terminal; MMB connect battery 1 to battery 2; P + charging/discharge correct poles (charging end/discharge end sharing); P - charging/discharge terminal negative terminal (charging end/discharge end sharing). Wiring: B+ : Connect to battery positive. B- : Connect to battery negative. MB: Connection point between battery 1 and battery 2. P+: Positive pole for charging/discharging (common at charging/discharging end). P- : Negative pole for charging/discharging end (common at charging/discharging end). 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. Tips: the product must be connected to a 8.4V charging voltage through p+ and p- before it will create voltage on pads.Or you can activate this BMS by momentarily shorting b- and p-. ## Features - Overcharging Range: 4.25 ± 0.05V to 4.35V; Over Voltage Range: 2.3 ± 0.05V to 3.0V; Maximum working current: 8A; Maximum instantaneous current: 16A. - Useful: 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. - 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. - 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. - Package Includes:10PCS 2S 7.4V 8.4V 8A Lithium Battery Protection Board. ## Product Details - **Brand:** daier - **Color:** blue - **Item Weight:** 0.01 Kilograms - **Input Voltage:** 8.4 Volts - **Output Voltage:** 8.4 Volts (DC) ## Images ![6PCS 2S 7.4V 8.4V 8A 18650 Battery Protection Board PCB BMS Protection Module for Li-ion Lithium Battery Cell - Image 1](https://m.media-amazon.com/images/I/81a063MN4BL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good *by A***S on July 16, 2025* Good product for the price, excellent seller, fast shipping and delivery, 100% recommended seller and product ### ⭐⭐⭐⭐⭐ Very small and good value *by L***T on January 7, 2024* I built a few 7.8V 2S1P packs from salvaged chromebook batteries. Seem to work fine for the low power usage. Very small and easyto package. ### ⭐⭐⭐⭐⭐ Seems to work *by L***N on August 2, 2023* Nothing has burned down or shorted, so I am guessing they work. ## Frequently Bought Together - daier 6PCS 2S 7.4V 8.4V 8A 18650 Battery Protection Board PCB BMS Protection Module for Li-ion Lithium Battery Cell - Comidox 3S 12V 10A 18650 Lithium Battery Protection Board BMS Li-ion Charger Protection Module Anti-Overcharge/Over-Discharge/Over-Current/Short Circuit 3Pcs - Dorhea MT3608 DC-DC Step Up Boost Power Converter 2A Module Adjustable Step Up Voltage Regulator Board Voltage 2-24V to 5V-28V Output Voltage Mico USB Compatible with Ardu ino (Pack of 10) --- ## 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/459368354-6pcs-2s-7-4v-8-4v-8a-18650-battery-protection](https://www.desertcart.tn/products/459368354-6pcs-2s-7-4v-8-4v-8a-18650-battery-protection) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-28*