- Home Page /
- Mobile Phone Accessories /
- Mobile Cases & Covers /
- Battery Charger Cases /
- Sitong Battery Case for Samsung Galaxy S21 Ultra 5G, 50...
0 ratings
Item #:
87568277
Sitong Battery Case for Samsung Galaxy S21 Ultra 5G, 5000mAh Rechargeable Extended Battery Charging Charger Case, Add 100% Extra Juice (6.8 Inches)
76% of respondents would recommend this to a friend
Item #:
87568277
SHP 44
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Tuesday, September 22
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Add 100% extra battery life to your Galaxy S21 Ultra with the 5000mAh Battery Case from SITONG, ideal for hard-working days, long-distance journeys, and business trips.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step 1 Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Capacity Battery
The 5000mAh capacity provides 100% extra power, ensuring your Samsung Galaxy S21 Ultra 5G lasts longer without interruption, ideal for heavy users on the go.
Slim Design
Despite its powerful battery, the case maintains a sleek profile, combining protection and functionality without adding unnecessary bulk, making it convenient for daily use.
Easy Charging
The case allows for hassle-free charging with just a press of a button, ensuring that you can easily recharge your phone and the case simultaneously, enhancing user experience.
Product Details
| Model Number | E87C |
| Brand | Sitong |
| Number of Items | 1 |
| Set Name | Samsung Galaxy S21 Ultra 5G |
| Unit Count | 1 Count |
| Manufacturer | Shenzhen E'allto Technology CO.,Ltd |
| Built-In Media | User manual |
| Item Weight | 140 g |
| Mfr Part Number | sitong-galaxys21ultra-5000m |
| Item Dimensions | 6.65 x 3.07 x 0.79 inches (16.9 x 7.8 x 2 cm) |
| Compatible Phone Models | Samsung Galaxy S21 Ultra 5G |
| Compatible Devices | Samsung Galaxy S21 Ultra 5G |
| Water Resistance Level | Not Water Resistant |
| Additional Features | Kickstand |
| Screen Size | 6.8 inches (17.3 cm) |
| Compatible Cellular Phone Models | Samsung Galaxy S21 Ultra |
| Color | Black |
| Pattern | Solid |
| Theme | Battery case |
| Form Factor | Basic Case |
| Enclosure Material | Plastic |
| Finish | Smooth |
| Material | Plastic |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
What's in the box
User manual
Who Should Buy?
-
Frequent Travelers
Ideal for travelers needing extra power for long journeys without access to charging facilities.
-
Heavy Phone Users
Perfect for users who rely on their devices for work or media consumption throughout the day.
-
Outdoor Enthusiasts
Great for hikers and campers who need extra battery life while away from outlets.
-
Minimal Phone Users
Unsuitable for users who rarely drain their battery during the day and don't need extra capacity.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the capacity of the Sitong Battery Case for Samsung Galaxy S21 Ultra 5G?
Answer: The Sitong Battery Case features a robust 5000mAh capacity. This means it can effectively double your phone's battery life, giving you an extra 100% juice. It's particularly beneficial for heavy users, allowing for longer usage without worrying about finding a charging point, making it perfect for travel or long workdays. -
Question:
Is the Sitong Battery Case compatible with other Samsung Galaxy models?
Answer: No, the Sitong Battery Case is specifically designed for the Samsung Galaxy S21 Ultra 5G. It is not compatible with the S21 or other models. This design ensures a snug fit and reliable performance, making it essential for users who want to maximize battery support without compromising on protection or usability. -
Question:
How does the Sitong Battery Case charge my device?
Answer: The Sitong Battery Case charges your device through a built-in charging module. Simply slide your S21 Ultra into the case, and it will begin charging automatically when needed. This design means you never have to fumble with separate power banks or cumbersome wires, making it a seamless accessory for your daily routine. -
Question:
Can I use my phone normally while it's in the Sitong Battery Case?
Answer: Absolutely! The Sitong Battery Case allows full access to all buttons, ports, and camera functions while protecting your device. You can enjoy phone calls, photography, and app usage without restriction, which makes it a practical choice for users who desire both protection and extra battery life. -
Question:
Does the Sitong Battery Case provide protection for my phone?
Answer: Yes, the Sitong Battery Case not only extends battery life but also offers excellent protection against accidental drops and scratches. The sturdy design ensures your S21 Ultra remains safe from everyday wear and tear, making it a dual-purpose solution for users looking to maintain their phone's aesthetic and functionality. -
Question:
How do I check the battery level of the Sitong Battery Case?
Answer: The Sitong Battery Case features an LED indicator that displays the charging status and battery level. Simply press the button on the back of the case to see how much power is left. This feature helps you plan your usage effectively, ensuring you always have sufficient battery for your activities. -
Question:
Is the Sitong Battery Case bulky or heavy?
Answer: While the Sitong Battery Case adds some additional bulk compared to a standard case, it is designed to remain lightweight and manageable. Users often appreciate that it balances protection and portability, which is crucial for those who frequently travel or use their phone on the go. -
Question:
Can I use wired headphones while using the Sitong Battery Case?
Answer: Yes, the Sitong Battery Case is designed with precise cutouts that allow the use of wired headphones without any obstruction. You can enjoy your music or calls while still benefiting from the extra battery life, making it ideal for commuting or exercising. -
Question:
How long does it take to fully charge the Sitong Battery Case?
Answer: Charging the Sitong Battery Case typically takes around 4 to 5 hours when using a standard charging adapter. This ensures that your case is ready when you need it most. Keeping it charged is particularly useful for users who are frequently on their devices throughout the day. -
Question:
Where can I buy the Sitong Battery Case for Samsung Galaxy S21 Ultra 5G?
Answer: You can purchase the Sitong Battery Case for Samsung Galaxy S21 Ultra 5G from Ubuy. They offer a reliable platform for shopping, ensuring you can find the product and enjoy the benefits of an extended battery life on your device.
Sitong Battery Charger Cases E87C Editorial Review
The Sitong Battery Case for the Samsung Galaxy S21 Ultra 5G has generally received a mixed reception from users. Those who have shared their experience after using it for about a week seem to appreciate its primary function: providing an extra layer of battery life. Users have noted that the case can boost their phone's battery percentage significantly, making it particularly helpful for those who lead busy lives, like retail managers who are often on their feet and unable to plug in for a charge. However, there are a few quirks that users have highlighted. One notable issue is the charging activation process: a single click starts charging the phone, while two clicks stop it. Some users have found this counterintuitive, as they accidentally activated the charging feature when they did not intend to, which could lead to confusion. Additionally, some reviews mention potential issues with customer service and refunds, indicating that not all experiences with the product are smooth. Overall, the Sitong Battery Case is seen as a sturdy and reasonably priced option that adds essential battery life for busy users, but it does come with some operational quirks and customer service challenges that Prospective buyers should be aware of. ###
Customer Reviews & Ratings
64 customers ratings
-
5 Star
43%
-
4 Star
13%
-
3 Star
6%
-
2 Star
10%
-
1 Star
28%
Review this product
Share your thoughts with other customers
Pros
- Provides significant extra battery life (100% charge capability)
- Lightweight and not overly bulky
- Durable material Construction
- Good value for the price ###
Cons
- Confusing charging activation process (single click to start, double click to stop)
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
SHP 44
Order now and get it around Tuesday, September 22
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Designed for Galaxy S21 Ultra only
- Built-in short-circuit and overcharge protection
- Slim design with accurate cut-outs for easy access
- Provides 100% extra battery life
- Ideal for long hours of talk time, filming, and music
- Made of high-quality material with reinforced corners and sides protection
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.