---
product_id: 531074934
title: "DC 3.7V 650mAh 602540 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse"
brand: "hxjnldc"
price: "$33.39"
currency: USD
in_stock: true
reviews_count: 13
category: "Hxjnldc"
url: https://www.desertcart.us/products/531074934-dc-3-7v-650mah-602540-rechargeable-lithium-battery-for-sennheiser
store_origin: US
region: United States of America
---

# 3.7V nominal voltage, 4.2V max charge 650mAh high-capacity power Built-in overcharge & short circuit protection DC 3.7V 650mAh 602540 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse

**Brand:** hxjnldc
**Price:** $33.39
**Availability:** ✅ In Stock

## Summary

> 🔋 Recharge your essentials with power and peace of mind!

## Quick Answers

- **What is this?** DC 3.7V 650mAh 602540 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse by hxjnldc
- **How much does it cost?** $33.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/531074934-dc-3-7v-650mah-602540-rechargeable-lithium-battery-for-sennheiser)

## 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

- • **Power Your Premium Gear:** Specifically engineered for Sennheiser Momentum & Urbanite series headphones plus Aerox gaming mice—seamless compatibility guaranteed.
- • **Smart Safety Tech Inside:** Integrated Japanese Seiko IC safeguards against overcharge, overdischarge, overcurrent, and short circuits for worry-free use.
- • **Plug & Play or Custom Fit:** Includes genuine JST 3-wire connector with heat-shrink tubing for easy replacement—even if your original plug is missing or mismatched.
- • **Lightweight & Compact Design:** Slim 41×25×6mm form factor and just 12g weight—perfectly balanced for portable devices without bulk.
- • **Long-Lasting Rechargeable Energy:** 650mAh lithium polymer cell delivers reliable, extended battery life to keep your devices going strong.

## Overview

This DC 3.7V 650mAh rechargeable lithium polymer battery is tailored for Sennheiser Momentum 2.0, HD 4.40/4.50, 450BT, Urbanite XL headphones, and Aerox 9/5 mice. Featuring a compact 41×25×6mm size and lightweight 12g build, it delivers 2.4Wh of power with advanced Japanese Seiko IC protection against overcharge, overdischarge, overcurrent, and short circuits. The battery includes a genuine JST 3-wire connector and heat-shrink tubing for easy installation, ensuring compatibility even with mismatched plugs. Backed by a 1-year replacement warranty, it revitalizes your premium audio and gaming devices with reliable, safe energy.

## Description

Buy HXJNLDC DC 3.7V 650mAh 602540 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse: 3.7V - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works!! - Fixed my 11 year old headphones that I’m soul bonded to with this amazing work great battery that lasts for days and great value for the money
Review: New life in the headphones - Perfect fit in my Sennheiser HD1 headphones and battery life is back!

## Features

- Compatible with Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 mouse Battery Replacement。It can also be used in other 3.7-5V electronic products with power less than 2.4Wh (650mAh).（★ 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.
- 602540 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 650mAh, power 2.4Wh, ★size 41×25×6mm(1.614×0.984×0.236inch）(L*W*T), Weight:12g(0.423oz)，Maximum current:0.65A。 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, 3302-26 high temperature resistant silicone cable, and genuine JST Pitch 1.25mm ★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 | B0BR3ZQZ6Q |
| Amperage | 0.65 Amps |
| Antenna Location | electric tools |
| Battery Capacity | 650 Milliamp Hours |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 12 Grams |
| Best Sellers Rank | #268,277 in Health & Household ( See Top 100 in Health & Household ) #451 in 3.7V Batteries |
| Brand | HXJNLDC |
| Customer Reviews | 4.3 out of 5 stars 88 Reviews |
| Item Dimensions | 1.61 x 0.98 x 0.24 inches |
| Manufacturer | HXJN |
| Model Name | AHB622540N01 |
| Model Number | AHB622540N01 |
| Number of Batteries | 1 C batteries required. (included) |
| Recommended Uses For Product | electric tools |
| Reusability | Rechargeable |
| UPC | 754525114642 |
| Unit Count | 1 Count |
| Voltage | 3.7 Volts (DC) |
| Warranty Description | 1 |

## Product Details

- **Battery Capacity:** 650 Milliamp Hours
- **Battery Cell Composition:** Lithium Polymer
- **Brand:** HXJNLDC
- **Number of Batteries:** 1 C batteries required. (included)
- **Recommended Uses For Product:** electric tools

## Images

![DC 3.7V 650mAh 602540 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse - Image 1](https://m.media-amazon.com/images/I/61wU2iVP-RL.jpg)
![DC 3.7V 650mAh 602540 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse - Image 2](https://m.media-amazon.com/images/I/61eO8UUJ7mL.jpg)
![DC 3.7V 650mAh 602540 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse - Image 3](https://m.media-amazon.com/images/I/81jSmvePDIL.jpg)
![DC 3.7V 650mAh 602540 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse - Image 4](https://m.media-amazon.com/images/I/81gkArxdQYL.jpg)
![DC 3.7V 650mAh 602540 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse - Image 5](https://m.media-amazon.com/images/I/61vGu6wixmL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works!!
*by A***A on August 19, 2025*

Fixed my 11 year old headphones that I’m soul bonded to with this amazing work great battery that lasts for days and great value for the money

### ⭐⭐⭐⭐⭐ New life in the headphones
*by S***Y on February 21, 2026*

Perfect fit in my Sennheiser HD1 headphones and battery life is back!

### ⭐⭐⭐⭐⭐ Battery works
*by T***C on May 20, 2026*

Battery and control module worked without any issues. Wires are correctly color coded as well.

## Frequently Bought Together

- HXJNLDC DC 3.7V 650mAh AHB622540N01 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 450BT Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse
- Replacement Ear Pads for Sennheiser Momentum 2.0 (Momentum 2, M2), HD1 Around-Ear Headphones, Ear Pads Cushions with High-Density Noise Isolation Foam, Made Leather - Black

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-06-23*