---
product_id: 571856915
title: "DC 3.85V 550mAh 722428 Rechargeable Lithium Battery for Sony WH-CH720N、WH-XB910N、INZONE H9 Wireless Noise Reduction Gaming Earphones Battery Replacement"
brand: "hxjnldc"
price: "€ 20.25"
currency: EUR
in_stock: true
reviews_count: 4
category: "Hxjnldc"
url: https://www.desertcart.ie/products/571856915-dc-3-85v-550mah-722428-rechargeable-lithium-battery-for-sony
store_origin: IE
region: Ireland
---

# 3.85V nominal voltage 550mAh capacity Overcharge & short circuit protection DC 3.85V 550mAh 722428 Rechargeable Lithium Battery for Sony WH-CH720N、WH-XB910N、INZONE H9 Wireless Noise Reduction Gaming Earphones Battery Replacement

**Brand:** hxjnldc
**Price:** € 20.25
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your play, protect your gear — never miss a beat!

## Quick Answers

- **What is this?** DC 3.85V 550mAh 722428 Rechargeable Lithium Battery for Sony WH-CH720N、WH-XB910N、INZONE H9 Wireless Noise Reduction Gaming Earphones Battery Replacement by hxjnldc
- **How much does it cost?** € 20.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/571856915-dc-3-85v-550mah-722428-rechargeable-lithium-battery-for-sony)

## Best For

- hxjnldc enthusiasts

## Why This Product

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

## Key Features

- • **Smart Safety Shield:** Built-in Japanese Seiko IC safeguards against overcharge, overcurrent, and short circuits.
- • **Compact & Lightweight:** Slim 29×24×7.2mm design weighing just 11g fits seamlessly into your device.
- • **Precision Power Boost:** Reliable 550mAh capacity fuels your Sony wireless earphones for uninterrupted sessions.
- • **DIY Friendly Connector:** Includes genuine JST 3-wire module with heat shrink sleeve for easy, secure installation.
- • **Universal Compatibility:** Perfect replacement for Sony WH-CH720N, WH-XB910N, INZONE H9, and other 3.85-5V devices under 2.117Wh.

## Overview

This 3.85V 550mAh rechargeable lithium polymer battery is designed as a direct replacement for Sony WH-CH720N, WH-XB910N, and INZONE H9 wireless noise-cancelling gaming earphones. Featuring a compact form factor (29×24×7.2mm) and lightweight design (11g), it delivers reliable power with advanced Japanese Seiko IC protection against overcharge, overcurrent, and short circuits. Compatible with other low-power 3.85-5V devices under 2.117Wh, it includes a genuine JST 3-wire connector and heat shrink sleeve for easy installation, ensuring your audio gear stays charged and ready.

## Description

Buy HXJNLDC DC 3.85V 550mAh 722428 Rechargeable Lithium Battery for Sony WH-CH720N、WH-XB910N、INZONE H9 Wireless Noise Reduction Gaming Earphones Battery Replacement: 3.7V - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Ripoff - Garbage. Says low battery after 3 minutes of use. Charge all day with no improvement.
Review: didn't work for WH-CH720N - got for sony WH-CH720N. had 60% battery out of the box but won't hold a charge. the headphones are cooked.

## Features

- Compatible with Sony WH-CH720N、WH-XB910N、INZONE H9 Wireless noise reduction gaming earphones Battery Replacement。It can also be used in other 3.85-5V electronic products with power less than 2.117Wh (550mAh).（★ Not applicable to high-power electric tools and model aircraft）
- Please compare the connector specifications and polarity according to the display diagram before purchasing,★the red wire is the positive "+" and the black wire is the negative "-",White wire is thermistor "NTC"，Do not reverse-charge or reverse-connectreverse. ★The primary battery of some products has no plug or mismatched plug or mismatched polarity. It doesn't matter, you can cut and solder the plug directly or use our heat shrinkable insulating sleeve to connect the same color wire.
- 722428 rechargeable lithium ion polymer battery, nominal voltage 3.85V, full charge voltage 4.2V, capacity 550mAh, power 2.117Wh, ★size 29×24×7.2mm(1.122×0.945×0.283inch）(L*W*T), Weight:11g(0.39oz)，Maximum current:0.6A。 It can prevent overcharge, overdischarge, overcurrent, and short circuit.
- It‘s consists of of large-capacity A+ lithium battery, Japanese Seiko IC overcharge and overcurrent short circuit protection board, 3302-28 high temperature resistant silicone cable, and genuine JST Pitch 1.0mm ★3 wire connector module.
- If there are any quality issues within a year, ★please feel free to contact us via email for replacement.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CHYTS544 |
| Amperage | 0.6 Amps |
| Antenna Location | Indoor/Outdoor |
| Battery Capacity | 550 Milliamp Hours |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 11 Grams |
| Best Sellers Rank | #384,219 in Health & Household ( See Top 100 in Health & Household ) #1,122 in 3.7V Batteries |
| Brand | HXJNLDC |
| Customer Reviews | 2.1 out of 5 stars 16 Reviews |
| Item Dimensions | 1.12 x 0.94 x 0.28 inches |
| Item Weight | 11 Grams |
| Manufacturer | HXJN |
| Model Name | 402030 |
| Model Number | 402030 |
| Number of Batteries | 1 C batteries required. |
| Recommended Uses For Product | Indoor/Outdoor |
| Reusability | Rechargeable |
| UPC | 754525114758 |
| Unit Count | 1.0 Count |
| Voltage | 3.85 Volts (DC) |

## Product Details

- **Number of Batteries:** 1 C batteries required.
- **Brand:** HXJNLDC
- **Battery Cell Composition:** Lithium Polymer
- **Battery Capacity:** 550 Milliamp Hours
- **Recommended Uses For Product:** Indoor/Outdoor

## Images

![DC 3.85V 550mAh 722428 Rechargeable Lithium Battery for Sony WH-CH720N、WH-XB910N、INZONE H9 Wireless Noise Reduction Gaming Earphones Battery Replacement - Image 1](https://m.media-amazon.com/images/I/61C1X0BYjqL.jpg)

## Customer Reviews

### ⭐ Ripoff
*by E***S on December 9, 2025*

Garbage. Says low battery after 3 minutes of use. Charge all day with no improvement.

### ⭐ didn't work for WH-CH720N
*by N***Y on November 2, 2025*

got for sony WH-CH720N. had 60% battery out of the box but won't hold a charge. the headphones are cooked.

### ⭐⭐ Worked one time
*by T***% on November 22, 2024*

This fits Sony Xb910n . Testing the performance right now will update as I notice. It started with 50% now at 7% Looks like it’s not charging anymore. Will update tomorrow by trying again otherwise I am returning

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-05*