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VIYISI Portable Charger 
Your Perfect Travel Companion
The lightweight protable charger fits perfectly in your pocket or bag, making it a great companion for travel, business trips, and daily use.

Easy-to-Read LED Display
The LED display shows real-time battery levels, keeping you informed and ensuring you never run out of power when you need it most.

Ultra-Slim Power Bank
This battery pack features a sleek design that blends functionality with style, offering efficient charging without sacrificing aesthetics!

Superior Protection Technology
Incorporates advanced safety technologies to prevent overcharging, overheating, and short circuits, ensuring secure charging for all devices.

1 10,000mAh Capacity
2 Wide Compatibility
3 Package Contents
4 Travel Essential
Why does my power bank sometimes get hot while charging?
Given that this battery is only 0.58 inches thick, it responds to temperature changes much more noticeably than bulkier devices. Furthermore, fast charging causes a certain temperature rise, and using the device while charging also elevates its heat.
Why does my power bank charge my device fewer times than expected?
It can provide 50% – 70% of its capacity to other devices. About 30% – 50% of capacity is lost due to circuit heat generation and voltage conversion. Generally, devices receive more power when charging in standby mode than when charging while in use.
Why isn’t my power bank charging my phone as fast as I expected?
If your phone supports fast charging, the charging speed will be affected if you use your phone while it’s charging. Since the phone is consuming power at the same time, you may notice that the battery level isn’t increasing as much as you’d expect.
How many devices can this 10000 mah portable charger charge at the same time?
This power bank can charge 3 devices at the same time with its built-in USB-C cable, USB-A port, and USB-C port. Don’t leave the power bank unattended inside a car, as high summer temperatures can easily cause product malfunctions or other risks.
What devices is this power bank compatible with?
This power bank with a built-in USB-C cable, supports charging devices with USB-C ports, such as iPhone 16,iPhone 15,iPhone 17,Samsung S25, S24, S23, Galaxy A16, A15, A14,USB C Devices; and can also charge other devices via its USB-A and USB-C ports.
Size of a slim wallet, Lighter Than Your Phone — At just half inch thick and only 5.75 oz, this thin portable charger slips into your jeans front pocket and disappears — no bulge, no bounce. If you’ve ever lugged a brick-sized power bank that dragged down your bag or poked your leg all day, this is the fix. Built for commuters, flight-hoppers, and anyone who wants backup power without the bulk.
For USB-C phone owners who carry one device and want zero extras—iPhone 15/16/17, Samsung Galaxy S23/S24/S25, and all USB-C phones. One built-in USB-C cable instead of multiple cords: no digging, no choosing which cord, no tangled extras. At airport security, on a packed flight, or anywhere bag space is tight. You need backup power but don’t want to carry one more thing—a portable charger thin enough to forget it’s there.
Fast Charging Up to 22.5W: Don’t waste valuable time waiting beside an outlet. PD 20W fast charging helps quickly restore your phone’s battery before your next class, meeting, workout, flight, or hiking trail. Ideal for navigation, music streaming, mobile payments, fitness tracking, and staying connected throughout your busiest days.
Reliable All-Day Power Bank: With a powerful 10,000mAh capacity, this compact portable charger provides 1.8 charges for the iPhone 15 and 1.5 charges for the Samsung S24. Whether you’re studying with friends, working remotely, or traveling, one compact power bank helps keep your essential devices running together.
Functional and Stylish: Designed for modern lifestyles, this sleek black USB-C slim power bank combines clean aesthetics with practical performance. The compact size, lightweight build, and integrated cable make it an ideal everyday carry for college students, young professionals, travelers, commuters, and outdoor enthusiasts who want dependable power in a stylish, pocket-friendly design.
Multi-layered safety protection: This 10000mAh power bank complies with UL 2056 and UN38.3 safety standards, effectively protecting against overcharging, over-discharging, overvoltage, overcurrent, short circuits and overheating, ensuring a worry-free charging experience for your devices wherever you are. It meets TSA aviation standards, making it the perfect travel essential.
What You Get: 1 × 10,000mAh small power bank, 1 × user manual, 1 × travel pouch. Comes with 24-month worry-free product services, lifetime technical support, and 24/7 friendly customer service with responses within 12 hours.
13 reviews for VIYISI Ultra Slim Portable Charger Small 10000mAh with Built-in USB C Cable
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