--- product_id: 567451544 title: "Replacement Battery for Galaxy Watch 4 (44mm) & Galaxy Watch 4 Classic (46mm), EB-BR890ABY Battery for Watch 4 44mm SM-R870 & Watch 4 Classic 46mm SM-R890, with Repair Tools & Instruction" brand: "maxsharks" price: "€ 37.04" currency: EUR in_stock: true reviews_count: 8 category: "Maxsharks" url: https://www.desertcart.gr/products/567451544-replacement-battery-for-galaxy-watch-4-44mm-and-galaxy-watch store_origin: GR region: Greece --- # Step-by-step detailed repair guide Zero-cycle original Li-Po cell Pro-grade repair toolkit included Replacement Battery for Galaxy Watch 4 (44mm) & Galaxy Watch 4 Classic (46mm), EB-BR890ABY Battery for Watch 4 44mm SM-R870 & Watch 4 Classic 46mm SM-R890, with Repair Tools & Instruction **Brand:** maxsharks **Price:** € 37.04 **Availability:** ✅ In Stock ## Summary > 🔋 Power up your Galaxy Watch like a pro—DIY battery swap, no tech degree needed! ## Quick Answers - **What is this?** Replacement Battery for Galaxy Watch 4 (44mm) & Galaxy Watch 4 Classic (46mm), EB-BR890ABY Battery for Watch 4 44mm SM-R870 & Watch 4 Classic 46mm SM-R890, with Repair Tools & Instruction by maxsharks - **How much does it cost?** € 37.04 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/567451544-replacement-battery-for-galaxy-watch-4-44mm-and-galaxy-watch) ## Best For - maxsharks enthusiasts ## Why This Product - Trusted maxsharks brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Premium Battery Tech:** Brand new UL2054-tested Li-Po cell ensures long-lasting power and reliable charge cycles. - • **DIY Repair Confidence:** Comes with expert-selected tools and a clear, detailed guide to empower your self-repair journey. - • **Cost-Effective Upgrade:** Skip expensive diagnostics and repairs—refresh your watch battery at a fraction of the cost. - • **Safe & Secure Shipping:** Custom hard plastic case with anti-static foam protects your battery from damage during transit. - • **Precision Compatibility:** Tailored for Galaxy Watch 4 (44mm) & Classic (46mm) models for perfect fit and performance. ## Overview This replacement battery kit is engineered specifically for Samsung Galaxy Watch 4 44mm and Watch 4 Classic 46mm models, featuring a brand new zero-cycle Li-Po cell tested to UL2054 standards for optimal longevity. The package includes a professional-grade toolkit and a comprehensive repair guide, enabling confident and cost-effective self-repair while ensuring safe delivery with protective packaging. ## Description Replacement Battery for Galaxy Watch 4 (44mm) & Galaxy Watch 4 Classic (46mm), EB-BR890ABY Battery for Watch 4 44mm SM-R870 & Watch 4 Classic 46mm SM-R890, with Repair Tools & Instruction Review: Saved money and made new - Took my watch to a local repair "specialist" shop. They wanted $50 just to diagnose the problem. I purchased this kit, enlisted a friend with more patients then myself, and it's 100% perfect now. Lots of small parts, so if you're elderly and have trouble with your hands, you will need help. Instructions are clear. (Watch currently charging but working great as before. Review: Battery over heats and then refuses to charge - Terrible. Screw driver was difficult to use due to not fitting screws well. Finally got it open and battery replaced only for it to over heat and then refuse to turn on or charge. Waste of time and monet. ## Features - Compatible Smartwatch Model: This battery kit is specifically designed for Samsung Galaxy Watch 4 44mm (with model SM-R870 series) and Watch 4 Classic 46mm (with model SM-R890 series), please double confirm your smartwatch model before purchasing - Quality Li-Po Cell: Built with brand new zero cycle original Li-Po cell, manufactured and tested under UL2054 test standards to ensure the best performance and long-lasting battery life. NOTE: A new battery requires at least three full charge and discharge cycles to properly calibrate the battery management system - Detailed Repair Guide: The package includes a complete and detailed repair guide, allowing you to easily handle the repair yourself with convenience and peace of mind - Professional Repair Toolkit: Carefully selected by our expert repair team, this kit includes every tool you need for the repair process. It's professional, safe, and easy to use, giving you the confidence to complete your repair quickly and efficiently - Extra Protection: Each smartwatch battery is packaged in a custom hard plastic case with anti-static foam inside, providing effective protection against bumps and pressure during shipping, ensuring your item arrives safely ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #9,757 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #28 in Cell Phone Replacement Batteries | | Customer Reviews | 3.8 out of 5 stars 172 Reviews | ## Product Details - **Number of Batteries:** 1 Lithium Ion batteries required. (included) - **Brand:** MAXSHARKS - **Battery Cell Composition:** Lithium Polymer - **Compatible Phone Models:** Galaxy Watch 4 Classic 46mm SM-R890, Galaxy Watch 4 44mm SM-R870 - **Recommended Uses For Product:** Watch ## Images ![Replacement Battery for Galaxy Watch 4 (44mm) & Galaxy Watch 4 Classic (46mm), EB-BR890ABY Battery for Watch 4 44mm SM-R870 & Watch 4 Classic 46mm SM-R890, with Repair Tools & Instruction - Image 1](https://m.media-amazon.com/images/I/71kKPSZ+qdL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Saved money and made new *by M***N on June 1, 2025* Took my watch to a local repair "specialist" shop. They wanted $50 just to diagnose the problem. I purchased this kit, enlisted a friend with more patients then myself, and it's 100% perfect now. Lots of small parts, so if you're elderly and have trouble with your hands, you will need help. Instructions are clear. (Watch currently charging but working great as before. ### ⭐ Battery over heats and then refuses to charge *by A***A on June 13, 2026* Terrible. Screw driver was difficult to use due to not fitting screws well. Finally got it open and battery replaced only for it to over heat and then refuse to turn on or charge. Waste of time and monet. ### ⭐⭐⭐⭐⭐ Works great for galaxy watch *by W***E on December 5, 2025* Worked perfectly for my Galaxy watch 46mm 2019. Only problem was the screw driver point was too sharp and I thought the screws were stripping but it was the point on the screw driver not allowing it to fit in the screws correctly. Other than that. Everything works perfectly and the battery is good. ## Frequently Bought Together - MAXSHARKS Replacement Battery for Galaxy Watch 4 (44mm) & Galaxy Watch 4 Classic (46mm), EB-BR890ABY Battery for Watch 4 44mm SM-R870 & Watch 4 Classic 46mm SM-R890, with Repair Tools & Instruction - 1 Pack Compatible Samsung Charger, Galaxy Watch 7/6/5/4 Charger Cable Dock USB Replacement for Galaxy Watch 7/6/6 Classic/5/5 Pro/4/4 Classic/3/Active 2/Active - Supershieldz (3 Pack) Designed for Samsung Galaxy Watch 7, 6, 5, 4 (44mm) Tempered Glass Screen Protector, Anti Scratch, Bubble Free --- ## 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.gr/products/567451544-replacement-battery-for-galaxy-watch-4-44mm-and-galaxy-watch](https://www.desertcart.gr/products/567451544-replacement-battery-for-galaxy-watch-4-44mm-and-galaxy-watch) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-29*