---
product_id: 531074934
title: "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"
brand: "hxjnldc"
price: "155 Lei"
currency: RON
in_stock: true
reviews_count: 8
url: https://www.desertcart.ro/products/531074934-dc-3-7v-650mah-ahb622540n01-rechargeable-lithium-battery-for-sennheiser
store_origin: RO
region: Romania
---

# 3.7V nominal voltage with 4.2V full charge 650mAh high-capacity power Advanced overcharge & short circuit protection 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

**Brand:** hxjnldc
**Price:** 155 Lei
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your productivity with precision and protection!

## Quick Answers

- **What is this?** 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 by hxjnldc
- **How much does it cost?** 155 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/531074934-dc-3-7v-650mah-ahb622540n01-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

- • **Compact Yet Mighty:** Slim 41×25×6mm design packs a powerful 650mAh capacity without adding bulk—perfect for on-the-go professionals.
- • **Safety First, Always:** Equipped with Japanese Seiko IC tech to prevent overcharge, overdischarge, and short circuits for worry-free use.
- • **Universal Versatility:** Works with any 3.7-5V device under 2.4Wh, making it your go-to battery for multiple gadgets beyond headphones and mice.
- • **Hassle-Free Replacement:** One-year quality guarantee with responsive customer support—never get stuck without power when it matters most.
- • **Power Your Premium Gear:** Specifically engineered for Sennheiser Momentum & Aerox series, ensuring seamless compatibility and peak performance.

## Overview

The HXJNLDC 3.7V 650mAh rechargeable lithium polymer battery is a compact, high-capacity power solution designed for Sennheiser Momentum headphones and Aerox mice. Featuring advanced Japanese Seiko IC protection against overcharge, overdischarge, and short circuits, it ensures safe, reliable performance. Its slim form factor and universal compatibility with 3.7-5V devices under 2.4Wh make it an essential upgrade for professionals seeking dependable, long-lasting power.

## Description

Full description not available

## 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.
- AHB622540N01 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 |
|---------------|-------|
| Antenna Location | electric tools |
| Battery Weight | 12 Grams |
| Item Dimensions | 1.59 x 0.98 x 0.24 inches |
| Unit Count | 1 Count |
| Battery Cell Type | Lithium Polymer |
| Amperage | 0.65 Amps |
| Battery Capacity | 650 Milliamp Hours |
| Reusability | Rechargeable |
| Voltage | 3.7 Volts (DC) |

## Product Details

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

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/611WefqP0WL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/61eO8UUJ7mL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/81jSmvePDIL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/81ygEeonPJL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/61vGu6wixmL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to install, inexpensive, and a huge improvement over factory-installed batteries.
*by J***N on May 7, 2025*

Installed the day it arrived, this upgraded a common consumer item with an internal rechargeable battery that was worn out and not functioning. Today, this little battery is going strong and I have a resurrected item and one that will maintain a charge for a very long time. :-) Great purchase. By the way, if you've never swapped out the cheaper rechargeable batteries that come with most consumer electronics, they are inexpensive to buy and so very easy to install. They all have the same plug! You just need to make sure the battery size and specifications will work for your device. Search the video social media for instructions! You can do this too!

### ⭐⭐⭐⭐⭐ 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

### ⭐⭐⭐⭐⭐ Perfect Replacement Battery for Avantree HT4189 Headphones
*by D***K on February 9, 2025*

After 5 years my Avantree HT4189 wireless headphones needed a new battery. Ordered this and it fit and worked perfectly. It's a little tricky to solder in but now my 40 hour headphones have 50% more battery capacity. The original battery was only 550 mAh.

## 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 Romania*
*Store origin: RO*
*Last updated: 2026-01-24*