Why is my power bank providing fewer charges for phones than expected?

Power bank loses 30%-45% energy as heat during charging due to cable resistance and internal circuitry. A fully charged 20000mAh bank provides about 11000mAh-14000mAh to devices.

How to activate 165W Max "beast mode"?

Pair Type-C1 with a 100W+ PD adapter and Type-C2 with a 65W+ PD adapter. Both ports charge simultaneously, reaching ~70% in 20 minutes at ambient temperature (25±2℃).

Is this power bank allowed on flights?

Yes, this power bank is under 100Wh, meeting TSA requirements for carry-on luggage.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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– CUKTECH 15 Ultra 20000mAh 165W Power Bank, Fast Laptop Portable Charger

Product ID: 777279792

Details

Battery capacity
20000 Milliamp
Brand
CUKTECH
Colour
Grey
Connector type
USB Type A USB
Special features
Beast Mode

⚡165W ultra-fast charging

⏱️20 min rapid recharge to 70%

✈️20,000mAh flight-approved capacity

463.15 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Description

⚡ Power up your hustle—fast, smart, and always ready.

SMART TFT DISPLAY - Real-time wattage, protocol, and temperature monitoring keeps you in control at a glance.
LIGHTNING FAST RECHARGE - Refuel your power bank to 70% in just 20 minutes—never miss a beat on the go.
ALL INCLUSIVE TRAVEL KIT - Includes premium 240W USB-C cable, storage bag, and 24-month warranty for worry-free use.
BLAZING 165 W POWER OUTPUT - Charge laptops, phones & consoles simultaneously with peak 165W power delivery.
FLIGHT READY 20 000 M AH CAPACITY - Stay powered through long flights and outdoor adventures with airline-compliant battery size.

The CUKTECH 15 Ultra is a sleek, portable 20,000mAh power bank delivering an industry-leading 165W output with PD 3.1 fast charging. It recharges rapidly in 20 minutes, features a smart TFT display for real-time monitoring, and meets international airline standards for carry-on batteries. Perfect for professionals juggling multiple devices, it comes with premium accessories and a 24-month warranty, ensuring reliable power wherever your busy life takes you.

Specifications

ASIN	B0DM1RGZHD
Antenna Location	Laptop, Phone
Battery Capacity	20000 Milliamp Hours
Battery Cell Type	Lithium Ion
Battery Weight	348 Grams
Best Sellers Rank	#7,554 in Mobile Phones & Communication Products ( See Top 100 in Mobile Phones & Communication Products ) #162 in Mobile Phone Portable Power Banks
Brand	CUKTECH
Color	Grey
Compatible Devices	Galaxy S21-25 Series; S25/S24 Ultra, Laptop, Tablets, Phones, Watches, Swtich, Steam Deck, etc, MacBook Air 13/15", iPhone 8-17 Series, MacBook Pro 12/13.3/15.6/14/16'', iPhone 17 Pro Max/17 Pro/ 17/Air/16/16 Plus/16 Pro/16 Pro Max
Connector Type	USB Type A, USB Type C
Country of Origin	China
Customer Reviews	4.7 4.7 out of 5 stars (499)
Included Components	CUKTECH 15 Ultra Power Bank, 1 * 6A 240W USB - C to USB - C charging cable, 1 * storage bag, 1 * user manual
Is Product Cordless	No
Item Dimensions	15.2 x 5.7 x 4.4 centimeters
Item Dimensions L x W x Thickness	15.2L x 4.5W x 5.7Th centimeters
Item Weight	590 Grams
Manufacturer	CUKTECH Technology Co.,Ltd.
Mfr Part Number	PB200U
Model Name	15 Ultra
Model Number	PB200U
Number of Batteries	4 Lithium Ion batteries required.
Number of Items	1
Number of Ports	3
Other Special Features of the Product	Beast Mode Self-Charging, Digital Display, Fast Charging, PD3.1 Fast Charging, Travle
Portable	Yes
Power Source	Corded Electric
Reusability	Rechargeable
Unit Count	1 Count
Voltage	20 Volts
Warranty Description	24-month Warranty and 24-hour customer service.
Warranty Type	24-month Warranty and 24-hour customer service.

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.

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463.15 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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