---
product_id: 628098576
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: "153 Lei"
currency: RON
in_stock: true
reviews_count: 5
category: "Hxjnldc"
url: https://www.desertcart.ro/products/628098576-dc-3-7v-650mah-ahb622540n01-rechargeable-lithium-battery-for-sennheiser
store_origin: RO
region: Romania
---

# 3.7V nominal voltage, 4.2V full charge 650mAh high-capacity power 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:** 153 Lei
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your productivity with a battery that keeps pace with your hustle!

## 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?** 153 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/628098576-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

- • **Safe & Smart Charging:** Built-in Japanese Seiko IC safeguards against overcharge, overdischarge, and short circuits—premium protection for your investment.
- • **Power That Lasts Longer:** 650mAh capacity delivers extended playtime, so you never miss a beat during your workday or commute.
- • **Revive Your Premium Audio:** Specifically engineered for Sennheiser Momentum 2.0, 4.40, 4.50, 450BT & Urbanite XL headphones—bring your sound back to life with unmatched reliability.
- • **Compact & Lightweight Design:** Slim 41×25×6mm form factor and just 12g weight fit seamlessly into your device without bulk or compromise.
- • **DIY Friendly with Pro-Grade Connectors:** Includes genuine JST 3-wire connector and heat-shrink sleeve for easy, secure installation—perfect for tech-savvy pros and tinkerers.

## Overview

The HXJNLDC AHB622540N01 is a rechargeable 3.7V lithium-ion polymer battery with 650mAh capacity and advanced safety features, designed as a direct replacement for select Sennheiser Momentum headphones and Aerox mice. Its compact size, reliable Japanese Seiko IC protection, and professional-grade connectors ensure long-lasting performance and easy installation, making it the ultimate upgrade for your premium audio gear.

## Description

Buy 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 online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Brought my Sennheiser MOMENTUM 2.0 AEBT back to life. Forever greatful.
Review: So, i bought the Momentum 3 battery for my Momentum 2 headphones. First off, it is shorter so i put a small piece of foam by it in the tray to hold it in place, secondly it is thicker, doesn't matter. The plug is the same and this battery has 30% greater capacity so I decided to go for it. I bought a correct one a while back but it never worked for charging so I tried again with this one. It indeed charges. Anyway, baring a rapid failure to hold a charge I consider this battery great. It has revived my 10+ year old headphones to working more than a couple hous a charge... I hope I get something comparable to when they were new or better.

## 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。Also suitable for DIY electronic products with 3.7-5V and less than 2.4Wh 650mAh built-in 3-wire battery replacement.（★ Not applicable to high-power electric tools and model aircraft）
- Please note that the specifications and polarity of the connector are based on the product display image,★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(1.594×0.984×0.236inch）(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 |
| Best Sellers Rank | #9,752 in Electronics ( See Top 100 in Electronics ) #105 in Rechargeable Household Batteries |
| Country of origin | China |
| Item model number | AHB622540N01 |
| Manufacturer | HXJN |
| Product Dimensions | 4.1 x 2.5 x 0.6 cm; 9 g |

## Product Details

- **Battery capacity:** 650 Milliamp Hours
- **Battery cell composition:** Lithium
- **Brand:** HXJNLDC
- **Number of batteries:** 1 C batteries required. (included)
- **Recommended uses for product:** Camera, GPS, MP3 Player, Radio, Speaker, Toys, Watch

## 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by G***Y on 10 September 2025*

Brought my Sennheiser MOMENTUM 2.0 AEBT back to life. Forever greatful.

### ⭐⭐⭐⭐⭐ Review
*by R***T on 14 September 2025*

So, i bought the Momentum 3 battery for my Momentum 2 headphones. First off, it is shorter so i put a small piece of foam by it in the tray to hold it in place, secondly it is thicker, doesn't matter. The plug is the same and this battery has 30% greater capacity so I decided to go for it. I bought a correct one a while back but it never worked for charging so I tried again with this one. It indeed charges. Anyway, baring a rapid failure to hold a charge I consider this battery great. It has revived my 10+ year old headphones to working more than a couple hous a charge... I hope I get something comparable to when they were new or better.

### ⭐⭐⭐⭐⭐ Review
*by K***R on 17 January 2025*

長年使っているhd4.40btの充電ができなくなったので購入しました。 交換後、新品同様に充電が長持ちするようになりました。 購入を検討している方のために、下記書いておきます。 ・交換のために必要な工具はプラスのドライバーのみです。 ・端子類、配線は変える必要はありません。単純に既存の電池を置き換えるだけです。 ・電池交換のためにイヤーパッドを外す必要があります。ついでにイヤーパッドも交換してはいかがでしょうか。 おそらく、既に必要となった方がこの商品を見てるはずです。 ちゃんと使えるバッテリーですよ。おすすめ商品です。

## 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

---

## 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.ro/products/628098576-dc-3-7v-650mah-ahb622540n01-rechargeable-lithium-battery-for-sennheiser](https://www.desertcart.ro/products/628098576-dc-3-7v-650mah-ahb622540n01-rechargeable-lithium-battery-for-sennheiser)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-28*