---
product_id: 135971161
title: "Rapthor 3250mAh High Power Replacement Battery for Jawbone Big Jambox Wireless Bluetooth Speaker J2011-03-US Easy to Install"
brand: "rapthor"
price: "6556 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Rapthor"
url: https://www.desertcart.is/products/135971161-rapthor-3250mah-high-power-replacement-battery-for-jawbone-big-jambox
store_origin: IS
region: Iceland
---

# 11.1V stable voltage tech 3250mAh Li-ion power boost Includes screwdriver & install tool Rapthor 3250mAh High Power Replacement Battery for Jawbone Big Jambox Wireless Bluetooth Speaker J2011-03-US Easy to Install

**Brand:** rapthor
**Price:** 6556 kr
**Availability:** ✅ In Stock

## Summary

> 🔋 Upgrade your sound, not your speaker!

## Quick Answers

- **What is this?** Rapthor 3250mAh High Power Replacement Battery for Jawbone Big Jambox Wireless Bluetooth Speaker J2011-03-US Easy to Install by rapthor
- **How much does it cost?** 6556 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/135971161-rapthor-3250mah-high-power-replacement-battery-for-jawbone-big-jambox)

## Best For

- rapthor enthusiasts

## Why This Product

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

## Key Features

- • **Revive & Thrive:** Breathe new life into your discontinued Big Jambox speaker
- • **Risk-Free Recharge:** 30-day money back & 12-month warranty guarantee
- • **Power Up Your Jambox:** 25% more capacity than original for longer jams
- • **Certified Safety First:** ISO9001, RoHS & CE certified for peace of mind
- • **Plug & Play Simplicity:** Easy DIY install with included magnetic screwdriver

## Overview

The Rapthor 3250mAh Li-ion replacement battery is designed specifically for the Jawbone Big Jambox J2011-03-US, offering 25% more capacity than the original battery. Certified for safety and quality (ISO9001, RoHS, CE), it includes a magnetic screwdriver and plastic tool for easy installation. Backed by a 30-day money back and 12-month warranty, this battery revives your classic speaker with reliable, long-lasting power.

## Description

Rapthor Brand New and High Quality Replacement Battery for Jawbone Big Jambox Wireless Bluetooth Speaker J2011-03-US Specifications: Battery Type: Li-ion Condition: Brand New Product Type: Replacement Battery Voltage: 11.1V Capacity: 3250mAh Dimension: Diameter 22.3mm, Length 200mm( not include the connection cable) Warranty: 12 months Compatible With: Big jambox speaker J2011-03-US Package Included: 1 pc Rapthor replacement battery( speaker not included) 1 free screwdriver tool Customer Service: We provide 30-day money back and 12-month warranty If you are not 100% satisfied with our product ,please feel free to contact us. NOTE: Please check your battery part number or item model to ensure you are getting the correct battery.

Review: It works, installation is easy enough - This battery indeed fits inside the Jawbone Big Jambox and completely restored the function of my expensive, discontinued bluetooth speaker, which I have always loved. It has a big, full sound that can easily fill an outdoor space, and I was broken-hearted to find out that the company disbanded and quit supporting their products, so I decided to give this replacement battery a try. I am not electronics-oriented, and I was able to follow the directions and successfully complete the battery replacement, though I recommend also watching a YouTube video. The screwdriver they give you works fine, but I'd recommend using a butter knife instead of the plastic wedge tool they give you to pry the sides off. Be careful, though, you don't want to crack the sides - if you do, you'll probably never find a replacement part. A few things to note about installation: 1) The first 3 screws you'll remove (underneath the rubber tabs on the bottom) are a different size than all of the other screws, so put them aside. The rest of the screws are all the same, which makes it pretty easy. 2) Pay attention to how the shiny metal grounding brackets go in the bottom of the unit. The instructions tell you to take a picture. They are pretty delicate, and when I was removing the last screw, the bracket kind of sprung up and flicked the screw away, which I then had to spend a lot of time finding on the floor. 3) Before removing the old battery, pay attention to how the wires are routed underneath the small electronic board and be sure to do it the same way when you put in the new battery. There are even little posts that help you route the wires. So far my speaker works great, charges normally, and the battery lasts a lot longer than the original one. If anything happens and the battery dies prematurely, I will certainly update my review accordingly, but for now I'm very satisfied with the purchase.
Review: Breathed new life into my Big Jambox! - This is a great repair/replacement kit. The magnetic screwdriver shipped with the replacement battery was a great tool - didn't slip or strip the screws. The panel/trim removal tool worked well too. I was about ready to give up on my 11 year old big jambox because of its battery and power issues, but I'm so glad I didn't and just replaced the battery instead. After replacing the battery, I'm still using it on the charge that the replacement battery came with, so it seems to be a good quality battery that will hold it's charge. I've used a lot of different bluetooth speakers in the past, and there's something about the full-bodied sound you get from the big jambox, it's just great. So glad my jambox is up and running again! Great price on this battery and quick shipping. The instructions really helped and were easy to follow. Take photos of the existing speaker components as you're opening it up - it pays to reference those photos when you're screwing everything back together!

## Features

- Type: Li-ion. Capacity: 3250mAh, increased 25% capacity than the original. ISO9001, RoHS and CE Certificated.
- Designed for: Big Jambox speaker J2011-03-US.
- Safety: Built in high-precision voltage detection circuit and delay circuit, make sure the battery run stable and perfectly.
- You Can Get: 1 pc Rapthor replacement battery( speaker not included) and free screwdriver too
- 100% Customer Satisfaction Guarantee: 30-day Money Back, 12-month Warranty for this Rapthor battery.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07P41HG29 |
| Battery Capacity | 3250 Milliamp Hours |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 0.25 Grams |
| Best Sellers Rank | #52,358 in Electronics ( See Top 100 in Electronics ) #1,489 in Portable Bluetooth Speakers |
| Brand | rapthor |
| Built-In Media | Replacement Battery, Screwdriver, Plastic Install Tool |
| Customer Reviews | 4.4 out of 5 stars 255 Reviews |
| Item Weight | 0.3 Pounds |
| Manufacturer | Rapthor |
| Model Name | J2011-03-US |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Reusability | Rechargeable |
| Unit Count | 1 Count |
| Voltage | 11.1 Volts |

## Product Details

- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Brand:** rapthor
- **Battery Cell Composition:** Lithium Ion
- **Battery Capacity:** 3250 Milliamp Hours
- **Unit Count:** 1 Count

## Images

![Rapthor 3250mAh High Power Replacement Battery for Jawbone Big Jambox Wireless Bluetooth Speaker J2011-03-US Easy to Install - Image 1](https://m.media-amazon.com/images/I/61vBOvVw+NL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works, installation is easy enough
*by J***O on April 28, 2021*

This battery indeed fits inside the Jawbone Big Jambox and completely restored the function of my expensive, discontinued bluetooth speaker, which I have always loved. It has a big, full sound that can easily fill an outdoor space, and I was broken-hearted to find out that the company disbanded and quit supporting their products, so I decided to give this replacement battery a try. I am not electronics-oriented, and I was able to follow the directions and successfully complete the battery replacement, though I recommend also watching a YouTube video. The screwdriver they give you works fine, but I'd recommend using a butter knife instead of the plastic wedge tool they give you to pry the sides off. Be careful, though, you don't want to crack the sides - if you do, you'll probably never find a replacement part. A few things to note about installation: 1) The first 3 screws you'll remove (underneath the rubber tabs on the bottom) are a different size than all of the other screws, so put them aside. The rest of the screws are all the same, which makes it pretty easy. 2) Pay attention to how the shiny metal grounding brackets go in the bottom of the unit. The instructions tell you to take a picture. They are pretty delicate, and when I was removing the last screw, the bracket kind of sprung up and flicked the screw away, which I then had to spend a lot of time finding on the floor. 3) Before removing the old battery, pay attention to how the wires are routed underneath the small electronic board and be sure to do it the same way when you put in the new battery. There are even little posts that help you route the wires. So far my speaker works great, charges normally, and the battery lasts a lot longer than the original one. If anything happens and the battery dies prematurely, I will certainly update my review accordingly, but for now I'm very satisfied with the purchase.

### ⭐⭐⭐⭐⭐ Breathed new life into my Big Jambox!
*by C***T on March 28, 2022*

This is a great repair/replacement kit. The magnetic screwdriver shipped with the replacement battery was a great tool - didn't slip or strip the screws. The panel/trim removal tool worked well too. I was about ready to give up on my 11 year old big jambox because of its battery and power issues, but I'm so glad I didn't and just replaced the battery instead. After replacing the battery, I'm still using it on the charge that the replacement battery came with, so it seems to be a good quality battery that will hold it's charge. I've used a lot of different bluetooth speakers in the past, and there's something about the full-bodied sound you get from the big jambox, it's just great. So glad my jambox is up and running again! Great price on this battery and quick shipping. The instructions really helped and were easy to follow. Take photos of the existing speaker components as you're opening it up - it pays to reference those photos when you're screwing everything back together!

### ⭐⭐⭐⭐⭐ Great battery kit.
*by J***U on May 13, 2026*

Nice battery kit. Perfect replacement battery for Big Jambox. Also, includes instructions and tools.

## Frequently Bought Together

- Rapthor 3250mAh High Power Replacement Battery for Jawbone Big Jambox Wireless Bluetooth Speaker J2011-03-US Easy to Install
- TAIFU AC DC Adapter Charger for Jawbone Big JAMBOX Wireless Bluetooth Speaker: Big JAMBOX J2011 J2011-51-CA J2011-03-US J2011-02-US J2011-01-US J2011-03-USPWR HDP40-145248W-1 HDP40145248W1 Power Plug
- Jawbone Big JAMBOX Wireless Bluetooth Speaker - Graphite Hex - Retail Packaging

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-08-22*