INIU 45W Portable Charger, Smallest 20000mAh Power Bank with Build in USB-C Cable, Fast Charging USB C in&Out Battery Pack, Travel Phone Charger for iPhone 17 16 15 Air Samsung S25 S24 Google iPad etc
Original price was: $39.99.$31.34Current price is: $31.34.
Product Features:
[product_features]
Product Description:
Product description
1 Packaging List
2 Safety System
Why my power bank provide fewer charges than expect?
Usually an external battery could supply 60%-70% power to other devices. About 30-40% of the battery capacity is lost in circuit heat and voltage conversions.So a fully charged INIU 20000mAh power bank can offer 12000-14000 mAh to your devices.
How to calculate the possible number of charges?
Industry-standard formula: (Power bank 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:
27W charger – 3.9 hrs, 15W fast charger – 6.8 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).
Comparison
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Customer Reviews
4.5 out of 5 stars 1,385
4.4 out of 5 stars 29,951
4.5 out of 5 stars 665
4.5 out of 5 stars 1,739
4.5 out of 5 stars 70,756
Price
$31.34$31.34
$26.99$26.99
$26.99$26.99
$21.84$21.84
$18.67$18.67
Size / Weight
4.5 x 2.9 x 1.1in / 11.5oz
4.1 x 2.8 x 1.2in / 11.1oz
4.4 x 2.7 x 0.7in / 6.4oz
4.3 x 2.7 x 0.7in / 6.3oz
4.3 x 2.7 x 0.7in / 6.4oz
Cable Included
Built-in USB-C Cable
Detachable USB-C Cable
Built-in USB-C Cable
Built-in USB-C Cable
Detachable USB-C Cable
Battery Level Display
Digital Display
Digital Display
Digital Display
PawPower Display
PawPower Display
For Phone
≈4 Charges
≈4 Charges
≈2 Charges
≈2 Charges
≈2 Charges
For Tablet
≈2 Charges
≈2 Charges
≈1 Charge
≈1 Charge
≈1 Charge
Airline Approved
✔
✔
✔
✔
✔
Recharge Time
3.9h
5.4h
1.7h
2h
2h
From INIU–the SAFE Fast Charge Pro: Experience the safest charging with over 38 million global users. At INIU, we use only the highest-grade materials, so we do have the confidence to provide an industry-leading 3-Year INIU Care.
45W Full-Speed Charging for iPhone 16 & Samsung S25: Delivering up to 45W output, this power bank supports PD, QC, and other fast-charging protocols. Charge your iPhone 16 to 70% in just 25 minutes, or your Samsung S25 Ultra to 80%.
New-Gen Ultra-Compact 20,000mAh: Powered by the industry-first high-density TinyCell battery, this compact power bank defies size limits. Enjoy high capacity without the bulk, perfect for on-the-go convenience.
Built-In USB-C Cable, Grab & Go: Never forget your cable again with the built-in USB-C cable—charge with ultimate convenience.
Recharge Once, Power for a Week: Ideal for travelers and outdoor enthusiasts, the 20,000mAh charges your iPhone 16 up to 4 times. Recharge once and power through the week!
Charge 3 Devices at Once: Low on battery? Charge up to 3 devices simultaneously—your phone, tablet, and more—all at once.
Price: $39.99 - $31.34
(as of Jan 07, 2026 13:15:51 UTC)
Specification: INIU 45W Portable Charger, Smallest 20000mAh Power Bank with Build in USB-C Cable, Fast Charging USB C in&Out Battery Pack, Travel Phone Charger for iPhone 17 16 15 Air Samsung S25 S24 Google iPad etc
|
13 reviews for INIU 45W Portable Charger, Smallest 20000mAh Power Bank with Build in USB-C Cable, Fast Charging USB C in&Out Battery Pack, Travel Phone Charger for iPhone 17 16 15 Air Samsung S25 S24 Google iPad etc
Add a review
Related Products
Original price was: $39.99.$31.34Current price is: $31.34.
EL –
More than enough to keep my devices powered for a day.
Very nice battery bank. Feels solid and durable. Love the large display showing the battery percentage. Can fast charge my Samsung Galaxy s23 ultra several times and run my heated vest for hours. Also love the built-in cable for those occasions where I forget to bring a longer charging cable. Will definitely consider getting another one for my daughter in college.
Phuong –
Excellent portable charger.
I really couldn’t ask for more at the price I got it at, especially with all the features it has. It has quick charging output, small size, built in USB-C cable that sorta acts like a loop handle, display with percentage of battery life, and a small LED flashlight you might use once in a blue moon. Build quality and design seems great and doesn’t feel cheap in the hand.Since I haven’t bother to upgrade all the charging bricks at home, this portable charger is technically the fastest phone charger I have, and it seems to hit close to the rated 45W charging speeds. I’m hoping it lasts a long time.
Tony de DC –
Size and Performance are Awesome
This charger is awesome! It’s compact and rapid charges my Galaxy s25plus. Charging from almost zero to full was as quick as plugging into an outlet and only used 15% of the chargers capacity. I’m still a little on the fence on whether the best cable option is built in (as this one is) or attached via lanyard (i.e., attach or not), but so far very satisfied with this purchase.
Gary Kessie –
Good quality and performance.
This portable charger works well, and is very convenient when traveling. It charges cell phones quicker than plug in wall chargers.
Todd D. –
Great little charger
Love the smaller size with a good amount of charging power. I like the attached USB C cable that can be used to charge my cell and to recharge the battery pack. Has a nice clear display of of much charge it has available. This is my 2nd INIU portable charger and I like their quality.
Wolly Boy –
Great High-Capacity Battery
So far, so good. I love the look and size. The charger delivers as promised. Only thing I would warn about is the weight of the battery. The 20000mAh certainly adds some heft that other 10000mAh batteries don’t have.
Mark Mandelstamm –
Quality Battery Pack
Quality battery pack. Fast to charge phone and it lasts. It’s powerful and meets 2026 standards for the airlines.
Dottie –
Quit researching and GO GET THIS!
This is my first ever review on Amazon, but this product deserves it. I’ve used it on two devices: 1. My Samsung S25 Ultra, and it charged from 0 to 100% in about an hour and still had 66% battery left and 2. My EarFun Pro 4 Buds case – It charged from dead to full in about an hour, and there was still 97% left on the charger. My point, it charged the case slowly, as it should, so the smart chip is working but only used 3% capacity. It charged the Smartphone fast, as it should, and only used 33% capacity. I’ve bought many different power banks and returned most of them. This one I will keep. Also, the integrated cord seems very stable, although I would have liked it to be flush with the unit as it makes a big loop so that you can carry it around; which I guess is good since it doesn’t have a case but that’s just me. It also has pass-through in that it charges itself and a device if you like. When I researched power-banks, INIU seemed to have these on most of theirs and at the highest level of quality.
Chris –
Excellent power bank. It replaced some old ones. It’s been really handy to have around. Fast shipping service. I’ve seen others comment about the cable quality but so far it has been stable and secure for charging my iPhone 16 Pro Max. Definitely happy with the product and service.
Raven –
Review for: “INIU Portable Charger, Compact 20000mAh Power Bank with Build in USB-C Cable, 45W Fast Charging Mini Powerbank, Family Trip Accessories Phone Charger for College Students Teen Boys Girls, Orange”Brand: INIUModel: P51L-E2 20000mAh/45WColour: OrangeFirst look: The INIU 45W Fast-Charging Power Bank came in a teal & white box (10.1 cm x 15.2 cm x 3.3 cm) with the user manual and information card. The attached USB-C cable works for both input & output. The colour “Orange” is actually an orangey-red colour, more red than orange.Measurements: The size of the power bank is 11.5 cm x 7.3 cm x 2.9 cm with a weight of 326 g.Operation and testing: Short-press the power button to see the remaining charge percentage on the digital display, or double-click the button for the flashlight. The USB-A port is a 22.5 W output only. The USB-C port & cables are both in/out with the inputs at 27 W and the outputs at 45 W.Opinion: The power bank is a bit larger & heavier than most power banks I have, but this one is also a larger capacity at 20,000 mAh. I ordered this because of the built in USB-C cable for charging my phone and it’s convenient that the cable can also be used to charge it. It would be nicer if this power bank included a USB-C to USB-A adapter though, as I don’t have a wall plug with USB-C, and it didn’t come with a USB-C to USB-A charging cable.I am happy with this power bank as I can easily charge any of my phones without having to worry about carrying extra cables with me.
CC –
This power bank holds its charge really well, and charges phones and tablets much faster than others I’ve used. I recently took it on a trip to Europe and I was super happy with it – good for multiple charges, compact, and the built-in cable is a nice touch. I have an older iPhone with a lightning port, and purchased a cheap usb-c to lightning adapter that just attached to the end of the cable, so I could charge my phone or tablet with no additional cables. It is compact and a little bit heavy – you could probably go with the 10000mAh option if weight is a concern.
Derleth M. Rabanes –
Fast Charging! 👌Exactly what I was looking for. The powerbank performs well and meets my expectations.
Amazon Customer –
Great power bank. Fast charging and does everything it should. Built in lead is a good idea. Compact size and good quality. Price on deal was fantastic.