Rated capacity? Battery capacity? Why is my power bank not providing as many charges as l expected?

All power banks have rated capacity and battery capacity differences. They arise due to energy loss in voltage conversion and efficiency. The number of charges always depends on rated capacity, generally 40-60% of battery capacity.

Why does my product recharge slowly?

1. Recharging to 100% about 2 hours requires the use of a charger of more than 65W; an 18W charger takes 5 hours to fully charge; 2. Temperature also has an impact to charging time, please avoid recharging immediately after high-power discharge.

Why does the displayed battery percentage number flash when charging?

It is not a display screen malfunction, but a design feature of the product to indicate charging status.

Can I bring this power bank on the plane?

Yes, the power bank complies with TSA requirements (<100Wh) and is approved for carry-on luggage during air travel.

Why did I fail to get the power bank charged with my existing cable, but the cable attached can charge it.

The possible reason may be that your type-c cable is not standard, it doesn't have CC pin.We suggest using the cable attached or cable of branded.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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CUKTECH 15 SE Power Bank 20000mAh 65W Laptop Charger, 3-Port USB C Portable Charger, PD 3.0 Fast Charging External Battery Pack for iPhone 16/15/14 Series, Samsung, MacBook, Dell, Steam Deck, and More

Q: Why did I fail to get the power bank charged with my existing cable, but the cable attached can charge it.

The possible reason may be that your type-c cable is not standard, it doesn't have CC pin.We suggest using the cable attached or cable of branded.

Product ID: 646212909

Details

Battery Capacity
20000
Brand
CUKTECH
Color
Grey
Connector Type
USB Type A USB
Special Feature
20000mAh Short

⚡65W max fast charging

🔋20000mAh high capacity

🔌3 simultaneous device ports

¥17474

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Description

🔋 Stay powered, stay unstoppable — the ultimate fast-charging sidekick for the modern pro.

POWER UP IN A FLASH - Charge your MacBook Air to 55% or iPhone 15 Pro Max to 56% in just 30 minutes—because waiting is so last decade.
RAPID RECHARGE READY - Refuel the power bank itself in just 1 hour 40 minutes with 65W PD input—stay ahead of your busy day without downtime.
TRIPLE THREAT CHARGING - Keep your phone, tablet, and laptop juiced simultaneously with 3 high-speed USB-C/A ports—never choose which device to power again.
CARRY ON COMPLIANT POWERHOUSE - FAA-approved 20000mAh capacity fits travel rules perfectly—your ultimate companion for work, play, and everything in between.
UNIVERSAL COMPATIBILITY ULTIMATE SAFETY - Supports PD, PPS, QC, FCP, SCP protocols for 1000+ devices with a fire-resistant shell and 9 layers of protection—charge confidently anywhere.

The CUKTECH 15 SE Power Bank packs a massive 20000mAh battery with ultra-fast 65W charging output and input, enabling rapid power-ups for laptops, smartphones, and tablets simultaneously. Its 3-port design supports multiple devices at once, while advanced safety features and broad compatibility make it a reliable travel-friendly power solution. FAA-compliant and built for professionals on the move, it recharges quickly and keeps your essential gear running longer.

Specifications

ASIN	B0D3PMWN46
Amperage	6 A
Antenna Location	Camera, Drone, Laptop, Phone, Tablet
Battery Capacity	20000 milliamp_hours
Battery Cell Type	Lithium Ion
Battery Charge Time	2 hours
Battery Weight	336 g
Best Sellers Rank	#18,443 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #743 in Cell Phone Portable Power Banks
Brand	CUKTECH
Color	Grey
Compatible Devices	MacBook Pro 16 (A2141, 2019), MacBook Pro 13 (A1708, 2017), MacBook Air (A2179), MacBook Air 13 (A2337, 2020), MacBook Pro 16 M1 (A2485, 2021), MacBook Pro 16 M3 (A2991, 2023), Dell XPS 15, Dell PLUS14-7430, ASUS Vivobook 16 (2023), HP Spectre x360 16 (2024), RedmiBook Pro 16 (2024), HP EliteBook 630G9, HP Zhan 66 Ryzen Edition, Lenovo Legion R9000P, iPad Pro (A1980), iPad Air 5 (A2588), iPad (A14…
Connector Type	USB Type A, USB Type C
Customer Reviews	4.5 out of 5 stars 1,275 Reviews
Included Components	CUKTECH 15 SE Power Bank, a 3.3ft 240W fast charging cable and a user manual.
Item Dimensions	5.98 x 2.04 x 1.74 inches
Item Dimensions L x W x Thickness	5.98"L x 2.05"W x 1.75"Th
Item Weight	489.4 g
Manufacturer	CUKTECH Technology Co., Ltd.
Mfr Part Number	PB200
Model Name	PB200
Model Number	PB200
Number of Batteries	3 Lithium Ion batteries required. (included)
Number of Items	1
Number of Ports	3
Other Special Features of the Product	20000mAh, Digital Display, Short Circuit Protection, USB-A 20W Max, USB-C 65W Max
Output Current	6 A
Power Source	Corded Electric
Rapid Charging Performance	Charge MacBook Air up to 55% in 30 minutes.
Reusability	Rechargeable
Special Feature	20000mAh, Digital Display, Short Circuit Protection, USB-A 20W Max, USB-C 65W Max
Unit Count	1 Count
Voltage	20 volts
Warranty Description	24-Month Warranty
Warranty Type	Limited

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

View all Trustpilot reviews

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¥17474

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews