---
product_id: 633955547
title: "702428 Battery Replacement for Sony WF-1000XM4 Headset Charging Box Case Battery，Rechargeable 0 Cycle Battery Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery"
brand: "vvuilsty"
price: "₩44121"
currency: KRW
in_stock: true
category: "Vvuilsty"
url: https://www.desertcart.kr/products/633955547-702428-battery-replacement-for-sony-wf-1000xm4-headset-charging-box
store_origin: KR
region: South Korea
---

# 520mAh upgraded capacity 0-cycle brand new battery cells Smart IC chip multi-protection 702428 Battery Replacement for Sony WF-1000XM4 Headset Charging Box Case Battery，Rechargeable 0 Cycle Battery Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery

**Brand:** vvuilsty
**Price:** ₩44121
**Availability:** ✅ In Stock

## Summary

> 🔋 Recharge your Sony WF-1000XM4 case with power and precision—never miss a beat!

## Quick Answers

- **What is this?** 702428 Battery Replacement for Sony WF-1000XM4 Headset Charging Box Case Battery，Rechargeable 0 Cycle Battery Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery by vvuilsty
- **How much does it cost?** ₩44121 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/633955547-702428-battery-replacement-for-sony-wf-1000xm4-headset-charging-box)

## Best For

- vvuilsty enthusiasts

## Why This Product

- Trusted vvuilsty brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First, Always:** Built-in smart IC chip guards against overcharging, overheating, and short circuits for worry-free use.
- • **DIY Friendly Repair Kit:** Comes with all necessary tools—empower yourself to restore your charging case like a pro.
- • **Power That Lasts Longer:** Upgraded 520mAh capacity means more standby time and fewer recharges—stay unplugged and unstoppable.
- • **Brand New 0-Cycle Battery:** Fresh out of the box with zero charge cycles for peak performance and extended battery life.
- • **Optimized Performance Tips:** Achieve best results after 3-5 full charge cycles; follow expert guides to unlock true battery potential.

## Overview

This 702428 replacement battery is specifically designed for the Sony WF-1000XM4 charging case, featuring a 520mAh capacity with brand new 0-cycle lithium polymer cells. It includes a complete repair kit for easy installation and incorporates advanced smart IC chip technology to protect against overcharging, overheating, and short circuits. Optimal battery performance is achieved after 3-5 full charge/discharge cycles, making it a reliable and safe upgrade to extend your headset’s battery life.

## Description

Model number:702428 Capacity:520mAhPackaging:1 x battery，1x tools Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery Important notes For the first three recharges, please drain the battery before fully charging it so that the battery can be used optimally. Keep in mind that optimal performance and battery life will only be achieved after 3 to 5 complete charge/discharge cycles. Some questions about using batteriesQuestion: Auto shutdown when there is still 60% battery left?Answer: Some users' cell phone system version is lowered, and the battery charging Chip does not match, we recommend you to upgrade your cell phone system. Question: What should I pay attention to after replacing the battery?Answer: Due to the replacement of the battery disassembly, the phone is not waterproof. Please try your best to avoid getting the phone wet. Question: The battery capacity is not equal to the actual capacity?Answer: Except for high-capacity batteries, the actual capacity of ordinary batteries will also be higher than the nominal capacity. The actual capacity of a newly installed battery can only be reached after 2-3 full charge/discharge cycles. Question: Newly installed batteries get hot and consume power quickly?Answer: Poor installation contact, damage to the battery wiring during installation, and leakage of electricity lead to high power consumption. Question: Repeated automatic reboot after installation, unable to turn on the battery, unable to charge it.Answer: Poor installation contact, or not installed the pressure piece lock fixing screws, or cell phone system, battery problems, please ask a professional. Question: Battery bulging problem after installationAnswer: Poor mounting contact, or not installed the pressure plate lock fixing screws, or cell phone system, battery problem.

## Features

- 【Compatible Model】Only Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery, battery model number is 702428 battery,The headphone charging case can be difficult to remove, so please be sure to use caution! please double check your cell phone model match before purchasing the battery.
- 【Durable and long-lasting】New 0-cycle battery cells with upgraded capacity, batteries are tested under strict quality control standards before leaving the factory, storing more power, bringing more standby time, prolonging battery life and reducing the number of recharges.
- 【Easy Installation】Complete repair kit is provided. Instruction/manual is not included, before removing, please read the battery replacement guide video on YouTube carefully. Please remember that the battery will only reach its best use after 3 to 5 full charge/discharge cycles.
- 【Multi-protection】Built-in upgraded smart IC chip technology prevents overcharging, overheating, short-circuiting, etc. to ensure safety.
- 【Friendly Customer Service】If you encounter any problems after installing the battery, please contact us at the first time. We will contact you within 24 hours. We will be happy to serve you. Thanks.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D26FM8L5 |
| Batteries | 1 Lithium Polymer batteries required. |
| Best Sellers Rank | #449 in MP3 Player Batteries |
| Customer Reviews | 3.5 3.5 out of 5 stars (3) |
| Date First Available | April 19, 2024 |
| Item Weight | 2.46 ounces |
| Item model number | 702428 |
| Manufacturer | Dongguanshiqianfandianzikejiyouxiangongsi |
| Package Dimensions | 6.89 x 3.35 x 0.59 inches |

## Product Details

- **Battery Cell Composition:** Lithium Polymer
- **Brand:** Vvuilsty
- **Number of Batteries:** 1 Lithium Polymer batteries required.
- **Recommended Uses For Product:** Indoor/Outdoor
- **Unit Count:** 1.0 Count

## Images

![702428 Battery Replacement for Sony WF-1000XM4 Headset Charging Box Case Battery，Rechargeable 0 Cycle Battery Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery - Image 1](https://m.media-amazon.com/images/I/71AdDhQlbIL.jpg)
![702428 Battery Replacement for Sony WF-1000XM4 Headset Charging Box Case Battery，Rechargeable 0 Cycle Battery Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery - Image 2](https://m.media-amazon.com/images/I/71PVXRyTHxL.jpg)
![702428 Battery Replacement for Sony WF-1000XM4 Headset Charging Box Case Battery，Rechargeable 0 Cycle Battery Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery - Image 3](https://m.media-amazon.com/images/I/71vnxCGNJiL.jpg)
![702428 Battery Replacement for Sony WF-1000XM4 Headset Charging Box Case Battery，Rechargeable 0 Cycle Battery Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery - Image 4](https://m.media-amazon.com/images/I/71b5uItTXIL.jpg)
![702428 Battery Replacement for Sony WF-1000XM4 Headset Charging Box Case Battery，Rechargeable 0 Cycle Battery Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery - Image 5](https://m.media-amazon.com/images/I/71pIkdunc7L.jpg)

## Frequently Bought Together

- Vvuilsty 702428 Battery Replacement for Sony WF-1000XM4 Headset Charging Box Case Battery，Rechargeable 0 Cycle Battery Compatible with Sony WF-1000XM4 Headset Charging Box Case Battery
- SONXIAVIVO 𝟮𝟬𝟮𝟓 𝗡𝗲𝘄 𝗨𝗽𝗴𝗿𝗮𝗱𝗲𝘀 Z55H Battery, Compatible with Sony Headset Battery for WF-1000XM4 • Truly Wireless Earbud Headphones Battery+ Tools [2PCS]

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-24*