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Dual USB Output Super Slim Power Bank Ultra Thin, Attom Tech 3000mAh Portable Charger Mini External Phone Battery Pack Small Dual Outlet, Emergency Phone Power Backup (Black)

Brand: Attom Tech

4.1 459 ratings

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Purchase options and add-ons

Connector Type	USB Type C
Brand	Attom Tech
Battery Capacity	3000 Milliamp Hours
Color	Black
Special Feature	Fast,Portable

About this item

🔋 [Smallest 3000mAh Power Bank] - Pocket Size 0.35" x 2.1" x 3.3", light weight only 2.2 oz. Its compact size is perfect for everyday use. It can be put into pocket easily.
🔋 [Fast Charge Two Devices Simultaneously] - 1 USB-C and 1 USB output to charge 2 devices at the same time.
🔋 [150% Extended Battery Life] - With this battery bank, you no longer have to worry about your battery life throughout the day and night! This power bank charges most phones 1.5 times.
🔋 [Ultra Safety] – The intelligent control circuit protects your devices from over-charging, over-current, over-voltage, short circuit and more, ensuring your safety and stable charging. This device is also certificated by FCC, CE, CCC and RoHS.
🔋 [Warranty] - 1 Year Attom Tech Warranty.

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Price	$16.95	$34.99	-5% $19.99 List: $20.99	-50% $12.99 List: $25.98	$27.99	$17.99
Delivery	Get it as soon as Tuesday, Jan 14	Get it as soon as Tuesday, Jan 14	Get it as soon as Monday, Jan 13	Get it as soon as Tuesday, Jan 14	Get it as soon as Tuesday, Jan 14	Get it as soon as Monday, Jan 13
Customer Ratings	4.1459	4.31,504	4.41,992	4.31,169	4.33,952	4.4434
Sold By	Attom Tech	MiissoDirect	ASK-Tech	ZSSYKJ	ADDTOP	TNTOR-US
capacity	3000 milliamp hours	10000 milliamp hours	5000 milliamp hours	10000 milliamp hours	26800 milliamp hours	3500 milliamp hours
connector type	USB Type C	USB Type C	USB Type C	USB Type C	USB Type A, USB Type C	USB Type C
number of ports	2	3	1	2	4	1
compatible devices	All phones, tablets and small USB devices. All series of iPhone, iPad, Samsung Galaxy, Google	iPhone 16 Pro/ iPhone 16 Pro Max /iPhone 16 /iPhone 16 Plus/iPhone 15/iPhone 15 Plus/iPhone 15 Pro/iPhone 15 Pro Max iPhone 14/ iPhone 14 Pro / iPhone 14 Pro Max/ iPhone 14 Plus/iPhone 13/ iPhone 13 Pro / iPhone 13 Pro Max /iPhone 13 Mini / iPhone SE/iPhone 12/ iPhone 12 Pro / iPhone 12 Pro Max / iPhone 12 Mini/iPhone 11 / iPhone 11 Pro / iPhone XS / iPhone XS Max/iPhone 8 / iPhone 8 Plus / iPhone 7 / iPhone 6 /iPhone 5/Samsing Galaxy Z Fold 6 / Samsing Galaxy Z Flip 6 /Samsing Galaxy Z Fold 5/ Samsing Galaxy Z Flip 5/ Samsing Galaxy Z Fold 4/ Samsing Galaxy Z Flip 4 /Samsing Galaxy S24/ Samsing Galaxy S24 Ultra/ Samsing Galaxy S24+/ Samsing Galaxy S23/ Samsing Galaxy S23 Ultra/ Samsing Galaxy S23+/Samsing Galaxy S22/ Samsing Galaxy S22 Ultra/ Samsing Galaxy S22+ / Samsing Galaxy S21/ Samsing Galaxy S21 Ultra/ Samsing Galaxy S21+ / Samsing Galaxy C55/ Samsing Galaxy A55 / Samsing Galaxy A54 / Samsing Galaxy A53 / Samsing Galaxy A52 Motorola P50/ Motorola Z4/ Motorola G7 Plus/ Motorola G7/ Motorola One/ LG G8/ LG G7/ LG X4/ LG Q60/ LG K40/ LG Q7/Google Pixel/ Google Pixel XL/ Google Pixel 2/ Google Pixel 2 XL/ Google Pixel 3/ Google Pixel 3 XL/ Google Pixel 4/ Google Pixel 4 XL	Smartphone	IPhone 14 13 12 11 8 7 Series, XR, XS Max, Samsung S22, S21, S20, A52, A32, Z fold series, Z flip series, and Google Pixel series	iPhone 16/15/14/13/12Plus/Pro/Pro Max, 11/8/7/XR/XS, AirPods Max, AirPods Pro, iPad, Google Pixel 6/5/4A/3A/3XL/3, LG, HTC, Sony, Oppo, Honor, Vivo, Motorola Smartphone, etc., Samsung S23/S22/S21/S20, A52/A32, Smartphone,Tablet, Watch Series, Steam Deck, Rog ally, etc.	Smartphone, Tablet, Headphone, Camera, Smartwatch
voltage	5 volts	—	5 volts	5 volts	5 volts	5 volts
battery charge time	—	5 hours	3.5 hours	—	5 hours	—

What's in the box

Charging Cable

Product information

Product Dimensions

0.35 x 3.3 x 2.1 inches

Item Weight

2.11 ounces

ASIN

B07JZCZSH9

Item model number

PWBK-0011

Batteries

1 Lithium Polymer batteries required. (included)

Customer Reviews

4.1 459 ratings

4.1 out of 5 stars

Best Sellers Rank

#12,432 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
#506 in Cell Phone Portable Power Banks

Is Discontinued By Manufacturer

Special features

Fast,Portable

Other display features

Wireless

Color

Black

Whats in the box

Charging Cable

Manufacturer

Attom Tech LLC

Date First Available

June 29, 2018

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Product Description

Dual USB Output Super Slim Power Bank Ultra Thin, Attom Tech 3000mAh Portable Charger Mini

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Customer reviews

459 global ratings

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Customers say

Customers appreciate the power bank's small size and lightweight design. They find it fits easily in bags and pockets. Many praise its build quality as solid and reliable. While some customers appreciate power savings, others dislike the limited capacity. Opinions vary on charging ability, functionality, and value for money.

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Size Weight Build quality Power saving Charging ability Functionality Value for money Capacity

58 customers mention "Size"50 positive8 negative

Customers appreciate the power bank's small size. It fits easily in bags and is convenient for carrying around all day. The slim profile allows them to keep the battery on.

"...the battery on the back of my instruments with poster tack and the slim profile allows me to keep the battery on the instruments in their cases...." Read more

"...add about 30% to your phone's capacity: this is a lightweight/compact solution that works well." Read more

"I had two of these and they were great for what they are. Small, light little booster to toss in your pocket when you're headed out the door..." Read more

"...🫤 VERY lightweight and small. The C port is bidirectional - both input and output...." Read more

40 customers mention "Weight"40 positive0 negative

Customers appreciate the power bank's lightweight and compact design. They find it easy to carry in a pocket or purse, and it adds minimal weight to bikes. The slim and lightweight design is ideal for travel or putting in a pocket.

"Very slim profile and lightweight, this battery is perfect for an unobtrusive backup for a phone on a night out...." Read more

"...However, it is lightweight, and has proven quite durable...." Read more

"...pack that can add about 30% to your phone's capacity: this is a lightweight/compact solution that works well." Read more

"...Small, light little booster to toss in your pocket when you're headed out the door on a half batt....." Read more

23 customers mention "Build quality"19 positive4 negative

Customers appreciate the power bank's build quality. They find it solid and small, with no wobble or complaints. The product meets their expectations and exceeds their expectations.

"...It is the older generation of tech, but done well. You may want to make note of the 3 ports on the battery...." Read more

"...Build quality is fair apart from the USB-A socket which looks really cheap...." Read more

"It is absolutely tiny and can charge an insulin pump a few times before needing recharged...." Read more

"...Build quality is decent, but have seen better in this price category. In particular where the covers mate together...." Read more

12 customers mention "Power saving"12 positive0 negative

Customers appreciate the power bank's practicality and usefulness. They find it small and handy, suitable for emergencies and powering LED holiday lights on musical instruments. The power bank feels utilitarian and solid, making it perfect for day trips or days at theme parks.

"Very slim profile and lightweight, this battery is perfect for an unobtrusive backup for a phone on a night out...." Read more

"...It was enough, though, to keep my cellphone functional enough to navigate somewhere after an all-night bus ride depleted my battery...." Read more

"...I like the size, which perfect for charging the phone on the go but only for one time and up to 80% until I can plug the phone into wall power...." Read more

"...But that's what makes it small and light. Perfect for that day trip or day at a theme park. I definitely recommend this power bank." Read more

87 customers mention "Charging ability"44 positive43 negative

Customers have mixed reviews about the power bank's charging ability. Some say it charges their phone to 100% in 20-30 minutes, providing enough charge to run for 6-9 hours of shows before recharging. Others mention it charges slowly, gets hot quickly, and can be glitchy while charging.

"...Enough charge to run for 6-9 hrs of shows before recharging. Highly recommend this product." Read more

"...This is not a "fast charge" or "smart charge" device that I am aware. It is the older generation of tech, but done well...." Read more

"I was looking for a lightweight, dependable charger for my hiking backpack. I would not depend on this charger to charge my phone when hiking...." Read more

"...So if you want to plug it in overnight, it might not charge. This is entirely due to the usb chargers having power-saving features (a good thing!)..." Read more

37 customers mention "Functionality"23 positive14 negative

Customers have different experiences with the power bank's functionality. Some say it works well for charging devices like the TrackIR and Openspot2, with good charge state lights. Others report issues like the battery pack stopping working after a few charges, taking a long time to charge, and not being suitable for long backpacking trips.

"...your phone's capacity: this is a lightweight/compact solution that works well." Read more

"...This will not work for long backpacking trips like I'd hoped. 🫤 VERY lightweight and small...." Read more

"...By the way, the four charge state lights work very well. They blink while the battery is being charged...." Read more

"...It works pretty well and does a good job charging my phone...." Read more

10 customers mention "Value for money"5 positive5 negative

Customers have mixed views on the power bank's value for money. Some find it cheap, fragile, and worth it, while others feel it's not worth the money, takes forever to charge, and has limited usefulness.

"This is cheap, but it's not that cheap. I am considering the price in giving my rating...." Read more

"...It's just being one week. Not worth the money." Read more

"...But still, the thing is worth it." Read more

"...them it malfunctions and takes forever to charge and it feels like a waste of money...." Read more

11 customers mention "Capacity"3 positive8 negative

Customers are unhappy with the power bank's capacity. They say the cells are old and give only about 50% of the stated capacity. The advertised mAh is very low, and 1A is not enough, except in an emergency.

"...Capacity itself is as-advertised: very few mAH...." Read more

"...It lacks the capacity of some others but this is a function of the small size so it's a trade-off I accept...." Read more

"...The 3000mah capacity is just enough to give my iPhone X a full charge from empty, which is all I really need in a full day anyway." Read more

"...It is what it is, a kind of a one time charge so there's not a ton of capacity. But that's what makes it small and light...." Read more

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Top reviews from the United States

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Amazon Customer
Light weight, low profile. Excellent for pockets, recharging devices.
Reviewed in the United States on December 21, 2023
Verified Purchase
Very slim profile and lightweight, this battery is perfect for an unobtrusive backup for a phone on a night out. It is also very handy for powering LED holiday lights on my musical instruments. I can attach the battery on the back of my instruments with poster tack and the slim profile allows me to keep the battery on the instruments in their cases. Enough charge to run for 6-9 hrs of shows before recharging. Highly recommend this product.

Read more

Amazon Customer

Light weight, low profile. Excellent for pockets, recharging devices.
Reviewed in the United States on December 21, 2023
Very slim profile and lightweight, this battery is perfect for an unobtrusive backup for a phone on a night out. It is also very handy for powering LED holiday lights on my musical instruments. I can attach the battery on the back of my instruments with poster tack and the slim profile allows me to keep the battery on the instruments in their cases. Enough charge to run for 6-9 hrs of shows before recharging. Highly recommend this product.

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anonymous
Best product with these features.
Reviewed in the United States on May 18, 2024
Verified Purchase
It's a compact battery for special use cases, don't expect it to run your laptop or iPad for hours.

However, it is lightweight, and has proven quite durable.
I use it to keep a pocket bluetooth receiver from running out of power overnight.

It has also come in handy as the "extra" extra tiny 5V usb hub power supply that apple insists is nesessary to read a USB-A flash drive with their old lightning connector.

This is not a "fast charge" or "smart charge" device that I am aware.
It is the older generation of tech, but done well.

You may want to make note of the 3 ports on the battery. There is USB-A, USB-C, and that weird "micro-USB" port on it.

I just used the "Micro USB" for charging with a magnetic USB cable (sold separately).

I think there is an updated version from same manufacturer. Might be worth reading the specs on those charging ports, depending on.what you want to use it for.

📟

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Jeff
Great little booster...
Reviewed in the United States on September 4, 2024
Verified Purchase
I had two of these and they were great for what they are.
Small, light little booster to toss in your pocket when you're headed out the door on a half batt..

Add a 3 inch charging cable and you can always get that uber home...

Read more

One person found this helpful

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Steve Broyles
Better than Nothing, sorta
Reviewed in the United States on January 5, 2024
Verified Purchase
I took this along with me on a 7 month trip that spanned 4 continents and 19 countries.

It worked. It survived the trip.

My biggest gripe is that the draw when charging the battery is so low that many/most USB chargers don't recognize that it's even there. So if you want to plug it in overnight, it might not charge. This is entirely due to the usb chargers having power-saving features (a good thing!) and not necessarily a flaw in the battery.... but it is a hassle.

Similarly, it charges painfully slowly. The capacity is about 35% of my phone battery but it takes about the same amount of time to charge as my phone does.

Capacity itself is as-advertised: very few mAH. It was enough, though, to keep my cellphone functional enough to navigate somewhere after an all-night bus ride depleted my battery. It was enough to recharge a headlamp enough to see a dark path. It was enough to top-off some earbuds. And the best part is that you can actually charge 2 devices at once while also charging the battery (assuming you have enough usb cables). That was really handy.

So if you really just want a back-up/emergency battery pack that can add about 30% to your phone's capacity: this is a lightweight/compact solution that works well.

Read more

2 people found this helpful

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Jon R.
Poor quality charger, barely charges
Reviewed in the United States on February 6, 2024
Verified Purchase
I was looking for a lightweight, dependable charger for my hiking backpack. I would not depend on this charger to charge my phone when hiking. Most of the time it doesn't start charging my phone when plugged in. After multiple time trying to unplug and replug the cable, I could get it to start charging. Then the charger barely charges my phone - 4% in 20 minutes.

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2 people found this helpful

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Elphin Magic
Very limited usefulness
Reviewed in the United States on July 5, 2023
Verified Purchase

The media could not be loaded.

Charged my Google Pixel 4a from 10% to 99% in one hour, using up most of the juice in the battery bank.

However, it takes many hours to charge up the battery bank and it loses that charge entirely in a week or less of sitting unused. Poor battery life. If I expect to need to use the battery bank I need to fully charge it the day or night before. This will not work for long backpacking trips like I'd hoped. 🫤

VERY lightweight and small.

The C port is bidirectional - both input and output.

Read more

Elphin Magic

Very limited usefulness
Reviewed in the United States on July 5, 2023
Charged my Google Pixel 4a from 10% to 99% in one hour, using up most of the juice in the battery bank.

However, it takes many hours to charge up the battery bank and it loses that charge entirely in a week or less of sitting unused. Poor battery life. If I expect to need to use the battery bank I need to fully charge it the day or night before. This will not work for long backpacking trips like I'd hoped. 🫤

VERY lightweight and small.

The C port is bidirectional - both input and output.

Images in this review

9 people found this helpful

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Old School
So far so good.
Reviewed in the United States on April 28, 2023
Verified Purchase
I just received this little battery bank so I'll update this review if my opinion of it changes but, so far, I'm happy with it. I have large battery banks but I needed a small one that only output 1 amp because I have two motorcycle helmet intercoms and the manufacturer warns that they should not be charged with over 1 amp or they can be badly damaged. I suspect that the warning wasn't necessary because, as far as I know, a device will only draw as much amperage as it needs but I didn't want to take the chance. I bought two of these so that we could recharge our helmet intecoms on long rides if that became necessary. My motorcycle has ports with USB chargers but they put out 2.1 or 3 amps.

I received the first one of these little batteries yesterday. It was fully charged. My smart phone was at 76% charge so I hooked up to the little battery and I was surprised that it charged my phone to 100% in about 20 to 30 minutes and it still had some charge left (one light was on.). Then I charged the little battery. That took 60 to 90 minutes. When it appeared that this battery bank would work well, I ordered a second one. By the way, the four charge state lights work very well. They blink while the battery is being charged.

Because our helmet intercom systems can be used while they are being charged, we can hook them up to the intercoms with a charging cord and just slip them in a pocket while using the intercoms.

So it appears that these little battery banks will do exactly what I needed them for but I will update this review if they fail or there's other problems with them in the future. But for now, I'm happy with them.

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Rick James Bish
Works great to power wireless TrackIR
Reviewed in the United States on September 26, 2024
Verified Purchase
I have been looking for a way to cut the tether for my TrackIR Pro but all the options for attaching a battery to my headphones, where my TrackIR is mounted, were too larger or heavy. This has worked great so far. I cannot tell it's there and it powers my TrackIR Pro for days. I removed the long TrackIR cable and replace it with a 3 inch USB-C to connect to this battery.

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