Why does 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 25000mAh B63 can offer 15000-17000 mAh to your devices.

How to calculate the possible number of charges?

Industry-standard formula: (Rated capacity × 60%) ÷ Device battery capacity ≈ Number of Charges. eg. (25,000mAh Powerbank × 0.6) ÷ 3279mAh iPhone14 battery ≈ 4.4 charges

How long does it take to 100% recharge?

It depends on the power of the wall charger used: 65W fast charger - 2 hrs, 45W fast charger - 3 hrs, 18W fast charger - 6 hrs, 5V/2A standard charger - 11 hrs.

Does it support pass-through charging?

Yes, our power bank supports pass-through charging. You can charge both the power bank and connected devices simultaneously.

Is it allowed on airplanes?

Yes, our 25,000mAh power bank meets the regulations of TSA(Transportation Security Administration) for carring board(≤100wh≈27,027mAh)

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

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INIU Power Bank, 100W 25000mAh PD Fast Charging Laptop Portable Charger, Ultimate USB C Battery Bank with 3-Output for MacBook Pro Tablet Steam Deck iPhone 17 16 15 14 Dell XPS iPad Samsung S25 Google

INIU Power Bank, 100W 25000mAh PD Fast Charging Laptop Portable Charger, Ultimate USB C Battery Bank with 3-Output for MacBook Pro Tablet Steam Deck iPhone 17 16 15 14 Dell XPS iPad Samsung S25 Google

Product ID: 632329713

Details

Battery capacity
25000 Milliamp
Brand
INIU
Colour
Black
Connector type
USB Type C Usb
Special features
Fast Charging

⚡100W flagship laptop charging

🔋25000mAh high-capacity battery

🔌3-output USB-C fast charging

Description

🔋 Stay powered, stay ahead — never miss a moment with INIU’s ultimate fast charge!

TRIPLE USB C OUTPUTS - Charge your MacBook, iPhone, and Steam Deck simultaneously with versatile ports.
FAST RECHARGE LESS WAIT - 65W USB-C input recharges the power bank quickly, so you’re always ready to go.
SAFE TRUSTED WORLDWIDE - Over 38 million users rely on INIU’s premium materials and 3-year warranty for peace of mind.
MASSIVE 25000 M AH CAPACITY - Stay unplugged longer with enough juice to charge multiple devices multiple times.
POWER UP AT LIGHTNING SPEED - 100W output powers flagship laptops and devices without missing a beat.

The INIU Power Bank BI-B63 is a portable 25000mAh lithium polymer battery pack delivering up to 100W fast charging via triple USB-C outputs. Designed for professionals and gamers alike, it supports flagship laptops, smartphones, tablets, and Steam Deck devices. With 65W fast input recharge and a 3-year warranty, it combines high capacity, speed, and safety in a compact 475g form factor.

Specifications

ASIN	B08VDJP7WN
Antenna Location	Laptop, Iphone, Tablet, Earphone, Drone, Switch, Steam Deck
Battery Capacity	25000 Milliamp Hours
Battery Cell Type	Lithium Polymer
Battery Charge Time	3.5 Hours
Battery Weight	400 Grams
Best Sellers Rank	#11,152 in Mobile Phones & Communication Products ( See Top 100 in Mobile Phones & Communication Products ) #232 in Mobile Phone Portable Power Banks
Brand	INIU
Color	Black
Compatible Devices	Cellphones [iPhone, Samsung, Google, Huawei, Xiaomi etc.]. [Sumsung] S23 ultra/ S23/ S22/ S21/ S20 ultra/ S20/ S10 Plus/ S10/ S9/ S8/ Note 20 Plus/ 20/ 10 Plus/ 10/ 9/ 8, and more, [iPhone] 16/ 16 pro/ 16 plus/ 16 Pro Max/ 15/ 15 pro/ 15 plus/ 15 Pro Max/ 14/ 14 Pro Max/ 13/ 13 Pro/ 13 Pro Max/ 12/ 12 Pro/ 12 Pro Max/ SE/ 11 Pro Max/ 11 Pro/ 11/ SE/ X/ XS/ XS Max/ XR/ X/ 8/ 8 Plus. Eearbuds [Airpo…
Compatible Phone Models	Smart phone
Connector Type	USB Type C, Usb
Customer Reviews	4.5 4.5 out of 5 stars (3,797)
Item Dimensions	14.9 x 7.3 x 3.4 centimeters
Item Dimensions L x W x Thickness	14.9L x 7.3W x 3.4Th centimeters
Item Weight	475 Grams
Manufacturer	INIU
Mfr Part Number	BI-B63
Model Number	BI-B63
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
Portable	Yes
Power Source	Battery Powered
Unit Count	1.0 Count
Voltage	5 Volts
Warranty Description	3 years warranty
Warranty Type	Limited

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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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