---
product_id: 103475464
title: "Swaller Battery Case for iPhone X/XS, 4000mAh Ultra Slim Protective Charging Case Rechargeable Extended Battery Pack for 5.8 inch iPhone X/XS (Blue)"
brand: "swaller"
price: "€ 2.57"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.cy/products/103475464-swaller-battery-case-for-iphone-x-xs-4000mah-ultra-slim
store_origin: CY
region: Cyprus
---

# Sync-Through Tech 4000mAh Power 360° Protection Swaller Battery Case for iPhone X/XS, 4000mAh Ultra Slim Protective Charging Case Rechargeable Extended Battery Pack for 5.8 inch iPhone X/XS (Blue)

**Brand:** swaller
**Price:** € 2.57
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Power Up Your Day with Style!

## Quick Answers

- **What is this?** Swaller Battery Case for iPhone X/XS, 4000mAh Ultra Slim Protective Charging Case Rechargeable Extended Battery Pack for 5.8 inch iPhone X/XS (Blue) by swaller
- **How much does it cost?** € 2.57 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/103475464-swaller-battery-case-for-iphone-x-xs-4000mah-ultra-slim)

## Best For

- swaller enthusiasts

## Why This Product

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

## Key Features

- • **Double Your Power:** Experience an extra 100% battery life for uninterrupted usage.
- • **Ultimate Protection:** Crafted with high-quality materials to shield your iPhone from daily wear.
- • **User-Friendly Design:** Easily control charging with a simple 3-second button press.
- • **Seamless Connectivity:** Sync your device without removing the case—stay connected effortlessly.
- • **Tailored Compatibility:** Designed specifically for iPhone X/XS for a perfect fit.

## Overview

The Swaller Battery Case for iPhone X/XS is a sleek, ultra-slim protective charging case that offers a robust 4000mAh battery, doubling your phone's power while safeguarding it from scratches and daily wear. With advanced sync-through technology, you can easily connect to your computer without removing the case, ensuring you stay charged and connected on the go.

## Description



## Features

- About this item
- 【Add 100% More Battery Life 】The powerful iPhone X battery case provides additional 100% power to your iPhone X / XS. Means extra 12 hours Talk time or 10 hours Internet use. Just need press the button 3 seconds can start or stop charging.
- 【360° Protect Your iPhone】Made with high quality elastic soft material and hard-shell back plate, iPhone XS charger case protect your iPhone from scratches and daily wear and tear. Front bumper raised helps you protect the screen well.
- 【Charging & Listening】Featuring Sync-through technology that you can sync your iPhone to a computer without taking off the battery case. Compatible with iPhone original headphone and Apple AirPods or other Bluetooth headphone.
- 【Important Note】Only compatible with iPhone X or iPhone XS.Not support Car Charger, High Voltage or Quick Charge adapters. Wireless charging is Not supported by this iPhone X charging case.
- 【How to charge battery case】Please use your original stock cable and don't wiggle the port when you plug or unplug the cable.

## Images

![Swaller Battery Case for iPhone X/XS, 4000mAh Ultra Slim Protective Charging Case Rechargeable Extended Battery Pack for 5.8 inch iPhone X/XS (Blue) - Image 1](https://m.media-amazon.com/images/I/71-ABj+G70L.jpg)
![Swaller Battery Case for iPhone X/XS, 4000mAh Ultra Slim Protective Charging Case Rechargeable Extended Battery Pack for 5.8 inch iPhone X/XS (Blue) - Image 2](https://m.media-amazon.com/images/I/71oqUJU9eBL.jpg)
![Swaller Battery Case for iPhone X/XS, 4000mAh Ultra Slim Protective Charging Case Rechargeable Extended Battery Pack for 5.8 inch iPhone X/XS (Blue) - Image 3](https://m.media-amazon.com/images/I/71xPpBBb6BL.jpg)
![Swaller Battery Case for iPhone X/XS, 4000mAh Ultra Slim Protective Charging Case Rechargeable Extended Battery Pack for 5.8 inch iPhone X/XS (Blue) - Image 4](https://m.media-amazon.com/images/I/61r1ws8ptKL.jpg)
![Swaller Battery Case for iPhone X/XS, 4000mAh Ultra Slim Protective Charging Case Rechargeable Extended Battery Pack for 5.8 inch iPhone X/XS (Blue) - Image 5](https://m.media-amazon.com/images/I/71FSqgRVO+L.jpg)

## Customer Reviews

### ⭐ 







  
  
    charger connection broke within 3 months of use
  

*by A***R on Reviewed in the United States on April 5, 2019*

Latest update: Wow, to add salt to the wound, we received a much appreciated response from the seller offering a refund as a result of their defective product BUT the link they provided went to NOTHING and they have not responded at all to our multiple requests for an alternate way to get our refund.  Absolutely terrible.Below is the original review we submitted, but now we have to revise our review from 5 stars to 1 star due to the fact that the charging connector at the base of the case broke.  VERY disappointed.Original 5-star review:We ordered this charger case to replace an old, faulty one that wasn't charging any longer and this one works great AND the sleek two-tone design is a great added plus!  Only time will tell if the product stands the test of time, but so far so good -- five stars!

### ⭐⭐⭐⭐⭐ 







  
  
    Splendid power pack!
  

*by R***P on Reviewed in the United States on October 28, 2019*

I bought this awhile back out of necessity and fear of running out of battery out traveling and in conventions. I have to say this thing is amazing, I mean it’s not like a tank but I’ve dropped it sometimes and there seems to be no damage. The rubberized material it’s made of, makes it easy to grip (especially since I’m the type to hold the phone rather than keep it in my pocket). It’s not bulky yet also stores enough battery to recharge my phone to almost full! Also a great perk that should be mentioned is that this can be attached to your phone really easily. Just slide your phone in, and flip the rubber top part to enclose the phone in. The only problem I’d have with this case (and not a big problem for me) is that I’ve noticed sometimes it doesn’t charge my phone to max. I remember when I was at 20 or so percent, and this case was in full charge, when I activated it. When it stopped charging, my phone was at about 78 or so. AGAIN NOT A BIG PROBLEM AT ALL. So in conclusion I’m happy with this case, and hope that it’ll continue to stay durable till next I change my phone.

### ⭐⭐⭐⭐⭐ 







  
  
    Works with Apple CarPlay Devices!
  

*by S***  on Reviewed in the United States on March 18, 2019*

Was a little concerned with buying this case as I had not heard of the company before.  When it arrived, I was pleased with how easy it was to put the phone in it and take it out. This was important to me because i have an Apple CarPlay stereo in my car and use it all the time. I always had to remove the phone case and plug directly into the phone lightning port. The first time I used this case, I plugged into the case lightning port and the phone synced right up. Finally I did not have to remove the case every time I connected to the car. This was not advertised in the description so it was a welcome surprise. Case charges the phone fine, but if you are using gps, it will charge a little slower but it still gets there.  I had one issue where if the phone was partially discharged and the phone was partially discharged, when you plugged it in overnight, the case would charge to 100%, but the phone would not. This was remedied after an email to support who told me a few things to try. Got everything back on track. Overall, I would purchase this product again.

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**Shop now:** [https://www.desertcart.com.cy/products/103475464-swaller-battery-case-for-iphone-x-xs-4000mah-ultra-slim](https://www.desertcart.com.cy/products/103475464-swaller-battery-case-for-iphone-x-xs-4000mah-ultra-slim)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-28*