Question 1

What is the output capacity?

Accepted Answer

20000mAh is a value what shows a battery capacity. It is not 100% correct but to simplify it I would say it is an equivalent of an amount of energy a battery can hold. It does not matter what current you use - 1A or 2A as long as it is within of battery operational range. In both cases it is the same amount of energy what can be provided by battery. You just will consume it faster or slower, but energy amount still the same in both cases. 
It is important to understand that energy saved in a battery is used not only to charge something. There is a chip/convertor inside, what will take some amount of energy needed to produce a desired output current/voltage, so some energy will be used to warm up an air outside of that chip :) If that conversion is not efficient, it will waste a lot of energy and overall efficiency rate will be low. So if is capable to charge iPhone 11 Pro only 4 times before full discharge, then it means 3050*4=12200mAh of energy used to charge iPhone, while 20000-12200=7800mAh will be wasted just to warm up the air around. It explains why it shows 20000mAh (battery capacity) in a description, but only 12200mAh used to charge your device. Also, in common case the more the current is, the less efficiency rate will be. It means with 1A current you may charge iPhone 4 times, however, if you take 2A, it probably will be enough only for 3 charges. (all numbers are approx, just to demonstrate an idea).
So, if your power bank is warm\hot during charging a phone, it means it uses low quality\low efficient convertor, what is wasting a lot of energy saved in a battery.

Question 2

Is the usb c port for input only or can it be used to charge a phone with rapid charging with a usb c to usb c cord?

Accepted Answer

Agreed with getkyle. The seller's response is incorrect. It can charge up to three devices at once. It can charge from both the two standard usb-a ports as well as charge at PD and QC standard through usb-c. You can also charge the battery bank through the usb-c port so it acts both as in/out and it is labeled as so on the device

Question 3

Does this power bank support fast charging?

Accepted Answer

Yes, it can support fast charging for your phones. It can fuel your iPhone 14 up to 61% in 30 minutes. You may have more time to enjoy yourself!

Question 4

What 5A/2A charger do you recommend?, product#? I would like to purchase this, but i dont want to guess at what wall charger to buy.

Accepted Answer

I suggest the Samsung USB-C Super Fast Charging Wall Charger-25W PD Charger Adapter with Type-C Cable. For the fastest recharging time with this power bank, use a newer wall charger that has a usb-c socket with an output of 5 volts and capable of at least 18-25 watts thru it's usb-c socket. Lower wattage charging blocks will likely work, but will charge this power bank much slower, and may not be able to fully charge this power bank.

ASIN	B07YPY31FL
Amperage	1 Amps
Antenna Location	Iphone,Tablet,Tablets
Battery Capacity	20000 Milliamp Hours
Battery Cell Type	Lithium Polymer
Battery Weight	320 Grams
Best Sellers Rank	#485 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #53 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 (28,680)
Is Product Cordless	No
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
Portable	Yes
Power Source	Corded Electric
Reusability	Rechargeable
UPC	673257112163
Unit Count	1.0 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.

INIU Smallest 20000mAh Power Bank, 22.5W PD Fast Charging Portable Charger with Detachable Cable, Flight-Safe Battery Pack with LED Display for Travel Xiaomi iPhone Samsung Google, Classic Size, Black

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