Why your power bank seems to drain quickly than expected?

Power banks lose energy during charging due to heat and voltage conversion, typically supplying 60%-70% of their power to other devices. Therefore, a fully charged Charmast 20,000mAh power bank can deliver about 12,000-14,000mAh to your devices.

Can this power bank be taken on airplanes?

Carry-on allowed. Do not pack in checked baggage.

Does it work with small devices?

Yes. Enable low-current mode for headphones, watches, etc.

Is it normal for the portable charger and phone to get warm while charging?

Yes. Some warmth is normal during charging and use due to energy conversion. If temperatures exceed 45°C (113°F), stop use immediately.

Is it compatible with laptops?

No. Use a 30W+ laptop charger instead.

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Charmast 22.5W Fast Charging Power Bank, 4 Cables Portable Charger 20000mAh | USB C Battery Pack, 6 Outputs 4 Inputs Powerbank for Travel, Work, LED Display, Compatible with Smart Phones, Tablets

Charmast 22.5W Fast Charging Power Bank, 4 Cables Portable Charger 20000mAh | USB C Battery Pack, 6 Outputs 4 Inputs Powerbank for Travel, Work, LED Display, Compatible with Smart Phones, Tablets

Product ID: 578503924

Details

Battery capacity
20000 Milliamp
Brand
charmast
Colour
Connector type
4 Built-in for
Special feature
Built In Cable

⚡22.5W super-fast charging

🔋20000mAh high-capacity battery

🔌6 outputs + 4 built-in cables

¥11438

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up your hustle, anytime, anywhere!

SMART LED DISPLAY - Precision battery readout down to 1%—stay in control, always.
MASSIVE 20000 M AH CAPACITY - Power through days of travel or work without hunting for outlets.
LIGHTNING FAST 22 5 W OUTPUT - Get 50% charge in just 30 minutes—never miss a beat between meetings.
SLEEK DURABLE TRAVEL READY - Slim profile with tangle-free built-in cables and protective pouch—charge in style anywhere.
CHARGE 6 DEVICES SIMULTANEOUSLY - Ultimate multi-gadget power solution for busy pros on the move.

The Charmast 22.5W Fast Charging Power Bank is a premium 20000mAh portable charger featuring 4 built-in cables and 6 output ports, enabling simultaneous charging of multiple devices. With rapid 22.5W charging, a precise LED battery display, and a sleek, travel-friendly design, it’s engineered for professionals who demand reliable, on-the-go power for smartphones, tablets, and more.

Specifications

ASIN	B0CJBQBB7F
Amperage	3 Amps
Battery Capacity	20000 Milliamp Hours
Battery Cell Type	Lithium Polymer
Battery Weight	74 Grams
Best Sellers Rank	17 in Mobile Phone Portable Power Banks
Brand Name	charmast
Colour	Black-20000mAh
Compatible Devices	Smartphone, Smartwatch, Tablet
Connector Type	4 Built-in Cables:USB-C,for iPhone,Micro USB,USB-A, 4 Ports:USB-C1+USB-A 2+Micro USB *1
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (4,803)
Included Components	Portable Charger1, Travel Pouch1, User Manual*1
Is Electric	Yes
Item Dimensions	16 x 7.3 x 1.9 centimetres
Item Dimensions L x W x Thickness	15.4L x 7.3W x 2.2Th centimetres
Item Weight	340 Grams
Manufacturer	Dong guan Utopia-Originality Technology Co., Ltd
Manufacturer Part Number	C2065
Maximum Output Power	22.5W
Model Number	C2065
Number of Batteries	2 Lithium Polymer batteries required. (included)
Number of Items	1
Number of Ports	6
Other Special Features of the Product	Built In Cable, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection
Portable	Yes
Power Source	Corded Electric
Product Warranty	3-year warranty
Reusability	Rechargeable
Unit Count	1.0 count
Voltage	5 Volts

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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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¥11438

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

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TrustScore 4.5 | 7,300+ reviews

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