Why do I get fewer charges than expected from this power bank?

Power loss occurs from voltage conversion and circuit heat. Normally only 60%-70% of cell capacity can be delivered to devices. You may estimate cycles with the standard formula. Actual results vary by cable, temperature and device.

Why can’t the power bank continuously maintain its listed maximum charging power?

Listed max power is peak output. Built-in multi-protection includes overcharge, over-temperature and short-circuit protection. It automatically reduces power when hot. The power bank may stop charging if overheated and resume after cooling.

Can I bring this power bank onboard a plane? Can it be checked in luggage?

Rated energy 74Wh. Power banks ≤100Wh are generally permitted for cabin carry. It complies with TSA and most airline carry-on rules. Cannot be checked in. Airline policies differ. Please verify with your airline before travel.

How can you troubleshoot when facing the issue?

1. Check connection between power bank & device. 2. Clean port; dust may block charging. 3. Test with another cable/device. 4. If issue remains, record fault video & contact support. Reply within 24hrs. 18-month support for factory hardware defects.

Why does it take much longer than 2 hours to fully charge this power bank with my current charger?

2-hr fast charge requires a ≥45W PD charger (e.g. 45W/65W or higher) plus a 45W (3A) cable. Lower-wattage chargers (18W/30W) limit input and extend charging time. Use a compatible fast-charging set.

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JUOVI Power Bank 45W 20000mAh USB-C Portable Charger PD QC Fast Charging

Product ID: 629216460

Details

Battery capacity
20000 Milliamp
Brand
JUOVI
Colour
Black
Connector type
Type-C * 2 * 2
Special feature
Auto Shut-Off

⚡45W PD fast charge

🔋20000mAh high capacity

🔌4 simultaneous device ports

$79.48

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Stay charged, stay ahead — power your hustle with JUOVI!

QUAD PORT POWER HUB - Simultaneously charge 4 devices with 2 USB-C and 2 USB-A ports—perfect for multitaskers and teams on the go.
BLAZING 45 W PD SPEED - Charge your iPhone 15 Pro from 0% to 60% in just 30 minutes—3-4x faster than standard power banks.
RAPID 2 HOUR RECHARGE - Refuel your power bank fully in just 2 hours with 45W PD input—minimize downtime, maximize productivity.
MASSIVE 20000 M AH CAPACITY - Power your MacBook 14 once or your iPhone nearly 4 times on a single charge—stay unplugged longer.
SMART SAFETY LED DISPLAY - Advanced protections plus a digital battery indicator keep you informed and your devices safe—no surprises, just power.

The JUOVI Power Bank 45W 20000mAh Portable Charger delivers ultra-fast 45W PD charging and rapid 2-hour recharge times. Equipped with 4 ports (2 USB-C, 2 USB-A), it powers multiple devices simultaneously, ideal for busy professionals and travelers. Its high-capacity battery supports multiple full charges for smartphones, tablets, and even laptops, while integrated safety features and an LED display ensure reliable, worry-free use.

Specifications

ASIN	B0CTH7L29Z
Amperage	3 Amps
Antenna Location	Gaming Controller, Laptop, MP3 Player, Phone, Tablet
Battery Capacity	20000 Milliamp Hours
Battery Cell Type	Lithium Polymer
Battery Charge Time	2 Hours
Battery Weight	373 Grams
Best Sellers Rank	77 in Mobile Phone Portable Power Banks
Brand Name	JUOVI
Colour	Black
Compatible Devices	Laptop, MP3 Player, Smartphone, Smartwatch, Tablet
Connector Type	Type-C * 2, USB-A * 2
Country of Origin	China
Customer Reviews	4.3 4.3 out of 5 stars (4,844)
Included Components	JUOVI J2621 Power Bank 20000mAh 45W, 3A Type-C to Type-C charging cable 30cm, instruction manual
Is Electric	Yes
Is Product Cordless	No
Item Dimensions	13.7 x 7 x 2.6 centimetres
Item Dimensions L x W x Thickness	13.7L x 7W x 2.6Th centimetres
Item Weight	373 Grams
Manufacturer	SVVR Limited
Manufacturer Part Number	J2621
Model Name	J2621
Model Number	J2621
Number of Batteries	2 Lithium Polymer batteries required. (included)
Number of Items	1
Number of Ports	4
Other Special Features of the Product	Auto Shut-Off, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection
Output Current	3 Amps
Portable	Yes
Power Source	Corded Electric
Product Warranty	1 year manufacturer
Reusability	Rechargeable
UPC	784847488121
Unit Count	1.0 count
Voltage	5 Volts
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.

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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.

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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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$79.48

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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