Why my power bank provide fewer charges than expect?

Usually an external battery could supply 60%-70% power to other devices. Approximately 30-40% of the battery capacity is lost in circuit heat and voltage conversions.So a fully charged INIU 20000mAh can offer 12000-14000 mAh to your devices.

How to calculate the possible number of charges?

"Industry-standard formula: (Rated capacity × 65%) ÷ Device battery capacity ≈ Number of Charges. eg. (20,000mAh Powerbank × 0.65) ÷ 3279mAh iPhone14 battery ≈ 4.0 charges"

How long does it take to 100% recharge?

"It depends on the power of the wall charger used 20W charger - 5.4 hrs, 15W fast charger - 6.6 hrs. Note: Please recharge via the USB-C port."

Why doesn’t it charge at max power all the time?

INIU power banks feature a Smart Temperature Monitoring System that adjusts output to prevent overheating. It delivers max power when your device is low, then reduces power to protect your battery and improve efficiency.

Is it allowed on airplanes?

Yes, our 20000mAh power bank meets the regulations of TSA(Transportation Security Administration) for carring board(≤100wh≈27,027mAh).

Iniu 20000mah Portable Charger Compact 22 5w Fast Charging Usbc

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

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Description

⚡ Power up anywhere, anytime — your pocket’s new MVP!

DETACHABLE NYLON LANYARD - Built-in ultra-durable cable doubles as a stylish, tangle-free lanyard.
FAST FEARLESS CHARGING - Blast your phone to 60-70% in 25 minutes with smart thermal control.
MASSIVE POWER MINI SIZE - Fits 4 full charges in a sleek 320g frame—power that travels light.
3 YEAR HASSLE FREE WARRANTY - Join 38M+ users with SafeCharge tech and enjoy worry-free power for years.
TRAVEL READY TSA APPROVED - Carry on with confidence—flight-safe battery plus built-in flashlight for any adventure.

The INIU Smallest 20000mAh Power Bank packs massive 20,000mAh capacity into a compact, lightweight design with 22.5W PD fast charging. Featuring a detachable nylon lanyard cable, TSA-approved flight-safe battery, and an LED display, it’s engineered for seamless travel and daily hustle. With a built-in flashlight and a 3-year hassle-free warranty, it’s the ultimate portable charger for Xiaomi, iPhone, Samsung, Google, and more.

Specifications

ASIN	B07YPY31FL
Amperage	1 A
Antenna Location	Iphone,Tablet,Tablets
Battery Capacity	20000 milliamp_hours
Battery Cell Type	Lithium Polymer
Battery Weight	320 g
Best Sellers Rank	#139 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #10 in Cell Phone Portable Power Banks
Brand	INIU
Built-In Media	20000mAh power bank1, Built in Cables, User Guide, travel pouch 1
Color	Black
Compatible Devices	For ALL 【iPhone】iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 15, 15 Plus, 15 Pro, 15 Pro Max, iPhone 14, 14 Plus, 14 Pro, 14 Pro Max, iPhone13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iP…
Compatible Phone Models	For ALL 【iPhone】iPhone 15, 15 Plus, 15 Pro, 15 Pro Max, iPhone 14, 14 Plus, 14 Pro, 14 Pro Max, iPhone13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8, iPhone 8 Plus; 【Google】Google Pixel 6, Google Pixel 6…
Connector Type	Micro USB, usb
Customer Reviews	4.6 4.6 out of 5 stars (28,917)
Item Dimensions	5.3 x 2.8 x 1 inches
Item Dimensions L x W x Thickness	5.3"L x 2.8"W x 1"Th
Item Weight	12.8 ounces
Manufacturer	Shenzhen Topstar Industry Co., Ltd
Mfr Part Number	BI-B5
Model Number	BI-B5
Number of Batteries	1 Lithium Polymer batteries required. (included)
Number of Items	1
Number of Ports	3
Other Special Features of the Product	Fast Charging, Flashlight, LED Indicator Lights, Lightweight
Power Source	Corded Electric
Reusability	Rechargeable
UPC	673257112163
Unit Count	1 Count
Voltage	5 volts
Warranty Description	30-day money back guarantee, 3-YEAR warranty and lifetime technical support
Warranty Type	30 days money-back guarantee, INIU industry-leading 3 years warranty and lifetime technical support.

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.

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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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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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Fantastic experience overall. Will recommend to friends and family.

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¥10876

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

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INIU 20000mAh Portable Charger, Compact 22.5W Fast Charging USBC Power Bank

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Description

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Common Questions