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The Stuffcool Major Ultra is a premium 20000mAh powerbank delivering a robust 65W Power Delivery output, designed to fast-charge MacBooks, Windows laptops, DSLRs, and flagship smartphones including Samsung S23/S24 Ultra with Super Fast Charging 2.0 technology. It features rapid self-recharge capability at 65W and comes with a 100W E-Marker certified Type-C cable, making it an indispensable companion for professionals who demand reliable, high-speed power on the go.





| ASIN | B0D5JKBJTQ |
| Amperage | 5 Amps |
| Antenna Location | Gaming Console, Tablet, iPad, iPhone |
| Battery Capacity | 20000 Milliamp Hours |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 3.5 Hours |
| Battery Weight | 380 Grams |
| Best Sellers Rank | #1,550 in Electronics ( See Top 100 in Electronics ) #35 in Mobile Portable Power Banks |
| Brand | Stuffcool |
| Brand Name | Stuffcool |
| Colour | Silver |
| Compatible Devices | Camera, Laptop, Smartphone |
| Connector Type | USB Type C |
| Country of Origin | India |
| Customer Reviews | 3.9 out of 5 stars 613 Reviews |
| Importer Contact Information | Nissan Enterprises Limited, B41 Giriraj Industrial Estate, Mahakali Caves Road, Andheri E, Mumbai 400093, [email protected] |
| Item Dimensions L x W x Thickness | 14L x 6.8W x 2.9Th Centimeters |
| Item Type Name | powerbank, cable |
| Item Weight Unit of Measure | 380 Grams |
| Manufacturer | Nissan Enterprises Limited, Nissan Enterprises Limited, B41 Giriraj Industrial Estate, Mahakali Caves Road, Andheri E, Mumbai 400093, [email protected] |
| Manufacturer Contact Information | Nissan Enterprises Limited, B41 Giriraj Industrial Estate, Mahakali Caves Road, Andheri E, Mumbai 400093, [email protected] |
| Manufacturer Part Number | Major Ultra |
| Model Name | Major Ultra |
| Model Number | Major Ultra |
| Number of Batteries | 2 Lithium Polymer batteries required. (included) |
| Number of Items | 2 |
| Number of Ports | 4 |
| Other Special Features of the Product | Lightweight |
| Output Current | 5 Amps |
| Packer Contact Information | Nissan Enterprises Limited, B41 Giriraj Industrial Estate, Mahakali Caves Road, Andheri E, Mumbai 400093, [email protected] |
| Power Source | Corded Electric |
| Rapid Charging Performance | Charges iPhones and Pixels 50% in 30 mins | Supports Super Fast Charging 2.0 |
| Special Feature | Lightweight |
| Unit Count | 1.0 Count |
| Warranty Description | 6 Months Warranty |
Y**E
Good quality
I’ve been using this power bank for a few days now and I’m really impressed with the performance. The build quality feels premium and sturdy, not cheap plastic. It charges my phone very fast and supports fast charging properly. The battery backup is also excellent. I can charge my phone multiple times on a single full charge, which makes it perfect for travel and daily use. The LED indicator/display is accurate and helpful to check remaining battery percentage. It doesn’t heat up much while charging, and the ports fit tightly without any loose connection. Overall, it’s totally worth the price. Highly recommended if you are looking for a reliable and good quality power bank 👍
C**S
Issues with Oneplus
Good product. But doesn't fast charge oneplus phones.
P**R
A Reliable Powerhouse for All Devices
I recently purchased the Stuffcool 65W Power Bank, and I’m thoroughly impressed with its performance. It supports Type-C charging laptops, Android phones, and iPhones seamlessly. 🔋 Tested Devices: • Lenovo Thinkpad: Charges smoothly without any interruptions. • Samsung S23 Ultra: Shows Super Fast Charging 2.0, indicating high-speed charging capability. • iPhone 16 Plus: Achieved a solid 30-32W output, which is close to the maximum supported wattage for iPhones. ⚡ Performance: It delivers on its 65W promise, making it ideal for travel or everyday use. The Type-C PD output ensures quick and efficient charging across a wide range of devices. ✅ Pros: • Genuine 65W output • Works perfectly with Type-C laptops • Delivers super fast charging for Android • Optimized for iPhone fast charging as well • Sturdy build and compact design ❌ Cons: • Slightly bulky (understandable given the capacity) • Price may be on the higher side for some, but worth it for the performance
P**R
Poor reliability and dangerous
Stops working once the power indicator goes below 2 lights (basically stops working below 25%), which defeats the whole purpose of buying a 20000mAh power bank. Apart from that, it doesn't charge itself when you connect a device to it. For example, if I connect the power bank to a power source and simultaneously connect my phone to one of the ports, only the phone will charge up, the power bank wont. It does have fast charging capabilities but on the whole it has been a disappointment. Maybe the company should spend more on their technology and get the basics right rather than spending a ton on instagram reels and marketing. Update : The power bank has bulged dangerously and is a fire hazard. Please don’t but this.
B**A
Game Changer
Good Choice for me. I have Moto edge 40 neo mobile, its capable of 68W charging the Powerbank is capable of 65W charging. The Charging Time by the Powerbank is Quick as like as the Original Charger. 👍👍
A**H
Slow charging
Not a 65w power bank
D**I
Overall great quality and works very well
What a wonderful product, it is like a powerhouse brick but feels weightless and also handy, comes with a great power that can also charge laptop with a quick speed, all sort of connectivities available. Havent really experienced heating issues yet so far.
B**.
Good Fast-Charging Power Bank, But Real Laptop Backup Is Less Than Expected
I recently bought the Stuffcool 20,000mAh 65W power bank mainly to charge my Lenovo ThinkPad T14 laptop while travelling and during power outages. The product does what it promises in terms of fast charging support, but I think many buyers should understand the difference between marketing specifications and actual real-world usage. On paper: * 20,000mAh sounds massive * 65W sounds capable of handling laptops comfortably But in reality, my ThinkPad gets only around one full charge from the power bank when the power bank itself is fully charged. After checking my laptop battery report and understanding how power banks actually work, I realized: * the advertised 20,000mAh is measured at internal battery voltage (3.7V), * there are conversion losses while charging laptops at higher voltages, * and laptops consume power continuously while being used. So the real usable output for a laptop is much lower than what most people imagine from the “20,000mAh” branding. I don’t think this is only a Stuffcool issue — most brands market power banks similarly — but I do feel companies should communicate realistic expectations more clearly for laptop users. Something like: “Suitable for approximately one full charge for 45–60Wh laptops” would help customers make better decisions. Overall: * Good build quality * Fast charging works * Useful for emergency backup/travel * But don’t expect multiple laptop charges from a 20,000mAh power bank Sharing this so others can make a more informed purchase decision.
Trustpilot
1 week ago
4 days ago