--- product_id: 656008047 title: "daier2S 7.4V/8.4V 8A Lithium Battery Protector for 3.7V Batteries, E1269 Model" brand: "daier" price: "£20.72" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/656008047-daier2s-7-4v-8-4v-8a-lithium-battery-protector-3 store_origin: GB region: United Kingdom --- # 8A max continuous current Supports 3.7V lithium batteries 4-layer multi-protection system daier2S 7.4V/8.4V 8A Lithium Battery Protector for 3.7V Batteries, E1269 Model **Brand:** daier **Price:** £20.72 **Availability:** ✅ In Stock ## Summary > 🛡️ Power up safely, perform endlessly. ## Quick Answers - **What is this?** daier2S 7.4V/8.4V 8A Lithium Battery Protector for 3.7V Batteries, E1269 Model by daier - **How much does it cost?** £20.72 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/656008047-daier2s-7-4v-8-4v-8a-lithium-battery-protector-3) ## 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 Pack Advantage:** 10 protection boards included—perfect for scaling your projects or backups. - • **Plug & Play Precision:** Clear wiring diagram ensures hassle-free installation—no guesswork, no damage. - • **Quadruple Safety Shield:** Overcharge, over-discharge, overcurrent, and short circuit protections keep your gear safe. - • **Universal Compatibility:** Designed for various 3.7V lithium battery shapes and capacities—flexibility meets performance. - • **Power Through with Confidence:** Handles up to 8A continuous and 16A peak current for demanding devices. ## Overview The daier 2S Lithium Battery Protector (E1269 Model) is engineered to safeguard 3.7V lithium batteries with a robust 8A continuous current capacity and peak 16A tolerance. Featuring four critical protections—overcharge, over-discharge, overcurrent, and short circuit—it ensures maximum device longevity and safety. Ideal for diverse applications like massager packs, LED backups, and solar street lights, this 10-piece set offers reliable, scalable battery management for professional-grade projects. ## Description daier2S 7.4V/8.4V 8A Lithium Battery Protector for 3.7V Batteries, E1269 Model ## 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 - **Item weight:** 0.01 Kilograms - **Input voltage:** 8.4 Volts - **Output voltage:** 8.4 Volts (DC) - **Plug type:** Micro USB ## Images ![daier2S 7.4V/8.4V 8A Lithium Battery Protector for 3.7V Batteries, E1269 Model - Image 1](https://m.media-amazon.com/images/I/81a063MN4BL.jpg) ![daier2S 7.4V/8.4V 8A Lithium Battery Protector for 3.7V Batteries, E1269 Model - Image 2](https://m.media-amazon.com/images/I/511KI5tlEFL.jpg) ![daier2S 7.4V/8.4V 8A Lithium Battery Protector for 3.7V Batteries, E1269 Model - Image 3](https://m.media-amazon.com/images/I/71Jo1Hwce5L.jpg) ## 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.co.uk/products/656008047-daier2s-7-4v-8-4v-8a-lithium-battery-protector-3](https://www.desertcart.co.uk/products/656008047-daier2s-7-4v-8-4v-8a-lithium-battery-protector-3) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*