Any feedback after using it for a while?

Sorry charged after it arrived and haven’t used it. So I don’t know how long it holds a charge

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Rechargeable 3500mAh Lithium Battery Compatible with Harman Kardon Onyx Studio 1/2/3/4 Wireless Bluetooth Speaker

Product ID: 406102328

Details

Brand
rapthor
Colour
black
Compatible devices
Compatible
Compatible phone models
Compatible
Connector type
wireless
Included components
Install tool

🔋3500mAh High Capacity

🛠️Easy 10-min Installation

🛡️Built-in Safety Circuit

€ 58.82

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

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Description

🔋 Power up your vibe—never miss a beat with Rapthor’s high-capacity battery!

SAFE SOUND - Advanced protection circuit guards against overcharge, over-discharge, and short circuits for peace of mind.
INSTALL LIKE A PRO - Includes screwdriver and plastic tool for a hassle-free swap in under 10 minutes—no tech degree needed.
SEAMLESS COMPATIBILITY - Perfectly tailored for Harman Kardon Onyx Studio 1 through 4—keep your sound portable and powerful.
POWER THAT LASTS LONGER - Boost your Onyx Studio’s playtime with a 3500mAh battery that outperforms the original.
ENGINEERED FOR DURABILITY - Foam cushioning and reinforced cable protect your battery connection from wear and tear.

The Rapthor Rechargeable 3500mAh Lithium Battery is a premium replacement power source designed specifically for Harman Kardon Onyx Studio 1-4 wireless Bluetooth speakers. It offers higher capacity than the original battery, ensuring extended playback time. Installation is streamlined with included tools, while protective features like foam cushioning and a built-in safety circuit guarantee durability and safe operation. This battery revives your speaker’s portability and performance with reliable, long-lasting power.

Specifications

ASIN	B099NJVQQ7
Amperage	3500 Milliamps
Best Sellers Rank	#62,841 in Electronics ( See Top 100 in Electronics ) #1,324 in Portable Bluetooth Speakers
Brand	rapthor
Built-In Media	Install tool, Replacement battery, Screwdriver
Color	black
Compatible Devices	Compatible with Harman Kardon Onyx Studio 1/2/3/4
Compatible Phone Models	Compatible with Harman Kardon Onyx Studio 1/2/3/4
Compatible Power Plug Type	No Plug
Compatible devices	Compatible with Harman Kardon Onyx Studio 1/2/3/4
Compatible phone models	Compatible with Harman Kardon Onyx Studio 1/2/3/4
Connectivity Technology	Bluetooth
Connector Type	Proprietary
Connector type	Proprietary
Current	DC
Current Rating	3500 Milliamps
Customer Package Type	Standard Packaging
Customer Reviews	4.5 out of 5 stars 313 Reviews
Enclosure Material	Lithium-ion
Included components	Install tool, Replacement battery, Screwdriver
Input Voltage	3.7 Volts
Item Weight	0.11 Kilograms
Manufacturer	MSW (Shenzhen) Technology Limited
Model Name	Replacement Battery
Number of Items	1
Number of Power Levels	1
Output Current	3.5 Amps
Output Voltage	3.7 Volts
Portable	Yes
Power Plug	No Plug
Power Source	Battery Powered
Special Features	Rechargeable
Special features	Rechargeable
Specification Met	Li-ion Battery Standard, Higher Capacity, Easy to Install, Safe Performance
UPC	735818080479
Unit Count	1.0 Count
Voltage	3.7 Volts
Wattage	12.95 watts
Wired Charging Connector Type	USB Type A

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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€ 58.82

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews