--- product_id: 644035847 title: "2 Pieces Z55H Replacement Battery, 3.85V 75mAh High Capacity Li-ion Battery for WF-1000XM4 WF1000XM4 WF-SP900 Bluetooth Headphones Battery with Repair Tool Kits" brand: "huaeng" price: "€ 42.90" currency: EUR in_stock: true reviews_count: 12 category: "Huaeng" url: https://www.desertcart.sk/products/644035847-2-pieces-z55h-replacement-battery-3-85v-75mah-high-capacity store_origin: SK region: Slovakia --- # 75mAh High Capacity 3.85V High Voltage Includes Repair Tool Kit 2 Pieces Z55H Replacement Battery, 3.85V 75mAh High Capacity Li-ion Battery for WF-1000XM4 WF1000XM4 WF-SP900 Bluetooth Headphones Battery with Repair Tool Kits **Brand:** huaeng **Price:** € 42.90 **Availability:** ✅ In Stock ## Summary > 🔋 Recharge your sound, revive your vibe—don’t let dead batteries kill your flow! ## Quick Answers - **What is this?** 2 Pieces Z55H Replacement Battery, 3.85V 75mAh High Capacity Li-ion Battery for WF-1000XM4 WF1000XM4 WF-SP900 Bluetooth Headphones Battery with Repair Tool Kits by huaeng - **How much does it cost?** € 42.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/644035847-2-pieces-z55h-replacement-battery-3-85v-75mah-high-capacity) ## Best For - huaeng enthusiasts ## Why This Product - Trusted huaeng brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Precision:** Slim D5.5 x W12 mm design fits perfectly without bulk—power that’s sleek and discreet. - • **Smart Safety Tech:** Built-in microchip guards against overcharging, overheating, and over-discharging for peace of mind. - • **All-in-One Repair Kit:** Includes essential tools to DIY your battery swap and revive your earbuds like a pro. - • **Perfect Compatibility:** 100% tailored for Sony WF-1000XM4 & WF-SP900 earbuds—no guesswork, just seamless power. - • **Power-Packed Performance:** 75mAh capacity ensures longer playtime, keeping your beats alive and kicking. ## Overview This 2-piece Z55H replacement battery set offers 3.85V and 75mAh high-capacity Li-ion power, specifically engineered for Sony WF-1000XM4 and WF-SP900 Bluetooth earbuds. Certified for safety with CE, FCC, UL, PSE, and ROHS, it includes a built-in microchip to prevent overcharge and overheating. The kit comes complete with repair tools, enabling a professional-grade DIY battery replacement that extends your earbuds’ lifespan and keeps your audio experience uninterrupted. ## Description 2 Pieces Z55H Replacement Battery, 3.85V 75mAh High Capacity Li-ion Battery for WF-1000XM4 WF1000XM4 WF-SP900 Bluetooth Headphones Battery with Repair Tool Kits Review: Great little kit and a cheap fix to regenerate Sony ear buds - Great little kit and all items required to change batteries are in the kit. Allowed me to fit correctly new batteries in my Sony wf1000mx4 ear buds and avoid throwing them away. Follow the YouTube videos on line and you won’t go wrong. Used the kit a few days later to fix another piece of electronics. Review: Mostly Good - Kit is generally good and has everything you need except the glue, however the tweezers are made of cheese and completely useless, i suggest buying a metal pair or at least metal tipped. ## Features - 【Compatibility】100% Compatible with WF-1000XM4 WF1000XM4 original battery. Not for others headset . - 【Voltage】Battery Voltage:3.85V Battery Capacity:70mAh. - 【specification】Measured dimensions (mm): D5.5 x W12 - 【High-Quality】With CE, FCC, UL, PSE and ROHS certification. Build-in microchip to prevent over-charging,over-discharging and over-heating - 【High Quality Customer Service】 Our customers are always online, have any questions about the purchase or use of products, please feel free to contact us, we will try to make our customers satisfied as much as possible. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D5QQF8BV | | Best Sellers Rank | 236 in Mobile Phone Replacement Batteries | | Brand | HUAENG | | Brand Name | HUAENG | | Country Of Origin | China | | Customer Reviews | 3.9 out of 5 stars 35 Reviews | | Item Dimensions | 13 x 6.9 x 1.5 centimetres | | Item dimensions L x W x H | 13 x 6.9 x 1.5 centimetres | | Manufacturer | ShenZhen Maxpower Technology Co., Ltd | | Product Warranty | 1 | | Unit Count | 2.0 count | ## Images ![2 Pieces Z55H Replacement Battery, 3.85V 75mAh High Capacity Li-ion Battery for WF-1000XM4 WF1000XM4 WF-SP900 Bluetooth Headphones Battery with Repair Tool Kits - Image 1](https://m.media-amazon.com/images/I/61rCj+lGfOL.jpg) ![2 Pieces Z55H Replacement Battery, 3.85V 75mAh High Capacity Li-ion Battery for WF-1000XM4 WF1000XM4 WF-SP900 Bluetooth Headphones Battery with Repair Tool Kits - Image 2](https://m.media-amazon.com/images/I/71TMKuC-ahL.jpg) ![2 Pieces Z55H Replacement Battery, 3.85V 75mAh High Capacity Li-ion Battery for WF-1000XM4 WF1000XM4 WF-SP900 Bluetooth Headphones Battery with Repair Tool Kits - Image 3](https://m.media-amazon.com/images/I/71HQx7KkQ9L.jpg) ![2 Pieces Z55H Replacement Battery, 3.85V 75mAh High Capacity Li-ion Battery for WF-1000XM4 WF1000XM4 WF-SP900 Bluetooth Headphones Battery with Repair Tool Kits - Image 4](https://m.media-amazon.com/images/I/71QAZo4ia+L.jpg) ![2 Pieces Z55H Replacement Battery, 3.85V 75mAh High Capacity Li-ion Battery for WF-1000XM4 WF1000XM4 WF-SP900 Bluetooth Headphones Battery with Repair Tool Kits - Image 5](https://m.media-amazon.com/images/I/71wEFFJ0n9L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great little kit and a cheap fix to regenerate Sony ear buds *by P***N on 20 August 2025* Great little kit and all items required to change batteries are in the kit. Allowed me to fit correctly new batteries in my Sony wf1000mx4 ear buds and avoid throwing them away. Follow the YouTube videos on line and you won’t go wrong. Used the kit a few days later to fix another piece of electronics. ### ⭐⭐⭐⭐ Mostly Good *by D***D on 5 December 2024* Kit is generally good and has everything you need except the glue, however the tweezers are made of cheese and completely useless, i suggest buying a metal pair or at least metal tipped. ### ⭐⭐⭐⭐⭐ Renewed earbud experience *by R***H on 22 December 2024* This toolkit and two rechargeable batteries have given my much loved and very expensive earphones renewed life for long into the future. I am very pleased. Of course you can pop the lids off with a strong thumb nail (which I did). But you are covered for all eventualities with this bundle here. Recommended. ## Frequently Bought Together - 2 Pieces Z55H Replacement Battery, 3.85V 75mAh High Capacity Li-ion Battery for WF-1000XM4 WF1000XM4 WF-SP900 Bluetooth Headphones Battery with Repair Tool Kits - B7000 Glue, 2PCS 10ML Super Glue Transparent Paste Adhesive MOHEGIA Multi-Function Repair Glues Suitable for Phone Jewelry Glass Wood Metal Fabric --- ## 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.sk/products/644035847-2-pieces-z55h-replacement-battery-3-85v-75mah-high-capacity](https://www.desertcart.sk/products/644035847-2-pieces-z55h-replacement-battery-3-85v-75mah-high-capacity) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-07-28*