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🔌 Power up anywhere, anytime—because running out of juice is so last decade.
The Attom Tech Dual USB Output Super Slim Power Bank is a feather-light, ultra-thin 3000mAh portable charger designed for professionals who demand reliable, on-the-go power. With dual USB ports for simultaneous fast charging, smart safety features, and a compact form factor that slips easily into pockets or bags, it extends your device’s battery life by 150%, ensuring you stay connected during busy days and emergency moments.









| ASIN | B07JZCZSH9 |
| Amperage | 1 Amps |
| Antenna Location | Emergency Phone |
| Battery Capacity | 3000 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 60 Grams |
| Best Sellers Rank | #12,539 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #502 in Cell Phone Portable Power Banks |
| Brand | Attom Tech |
| Built-In Media | Built in Cables |
| Color | Black |
| Compatible Devices | All phones, tablets and small USB devices. All series of iPhone, iPad, Samsung Galaxy, Google |
| Compatible Phone Models | iPhone X, iPhone 8, iPhone 8 Plus, iPhone 7, iPhone 7 Plus, iPhone 6/6S, iPhone 6/6S Plus, iPhone 5/5S/SE, iPhone 5C, Samsung Galaxy S 9, Samsung Galaxy S 9 Plus, Samsung Galaxy S 8, Samsung Galaxy S 8 Plus, Samsung Galaxy S 7, Samsung Galaxy S 7 Edge, Samsung Galaxy S 6, Samsung Galaxy S 6 Edge, Samsung Galaxy S 5 |
| Connector Type | USB Type C |
| Customer Reviews | 4.0 out of 5 stars 549 Reviews |
| Item Dimensions | 0.35 x 3.3 x 2.1 inches |
| Item Dimensions L x W x Thickness | 3.3"L x 2.1"W x 0.35"Th |
| Item Weight | 0.06 Kilograms |
| Manufacturer | Shenzhen Chuangzhixiang Digital Technology Co., Ltd. |
| Model Number | PWBK-0011 |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Number of Ports | 2 |
| Other Special Features of the Product | Fast,Portable |
| Power Source | Battery Powered,Corded Electric |
| Reusability | Rechargeable |
| Special Feature | Fast,Portable |
| UPC | 699908808735 |
| Unit Count | 1.0 Count |
| Voltage | 5 Volts |
| Warranty Type | Limited |
A**O
Attom Tech 3000mAh "PocketRune"
"The party enters the bustling artificer’s shop, eyes instantly drawn to a slim artifact resting upon a velvet cushion. Behold—the Attom Tech PocketRune, a portable mana battery boasting precisely 3000mAh of compact, rechargeable power." Listen closely, adventurers: If you're embarking on smaller quests—like powering up a WLED spell-scroll or lighting your enchanted cosplay armor—this slender power source fits the bill perfectly. The 5V/2A output is steady and reliable. It won't summon lightning storms, but it'll surely keep your devices charged in a pinch. Its greatest charm lies in its sheer portability—this magical rune literally matches the dimensions of your guild-issued credit token (other than thickness, naturally). Surprisingly feather-light, it slips discreetly into your pocket or costume pouch. It feels solid and durable despite the weight—or perhaps because of it. No need to summon your 3D printer golem today, friends; this battery is ready to adventure straight out of the box. A simple side-mounted button reveals four pleasantly bright LEDs to indicate remaining power. These glowing indicators generously grant you six clear seconds to assess the situation—ample time even in the midst of battle or cosplay chaos. Considering that standard LiPo packs cost roughly 10-15 gold pieces (err, dollars), the pricing on this PocketRune is right on target. It strikes a satisfying balance between cost, capacity, and convenience. Artifact Summary: Capacity 3000mAh—modest but great for quick adventures Size & Weight Amazingly compact; literally credit-card sized Build Quality Lightweight yet reassuringly solid Power Output Steady 5V/2A—Reliable for most small devices Indicator Lights 4 bright LEDs, visible for 6 clear seconds Pricing Competitively priced compared to plain LiPo packs Pros: * Ultra-portable and perfectly sized for costumes or small electronics. * Solid build quality; no 3D-printing side-quests needed. * Bright, clear power indicators for quick checks. Cons: * Modest capacity, best suited for shorter adventures. Overall, the Attom Tech PocketRune is a charming and practical companion—ready to power your next quest with a bit of portable enchantment!
M***
Compact and Powerful
This is the perfect power bank for charging small devices on the go. It cammot charge a laptop because it isn't powerful enough but it can charge just about anything else that is small like cell phones, headphones etc. After 1 month of using the power bank the 4 little solid circles on the power bank still show that the charge is 100%. This is testament that the power bank is working as it should. The diminuative size of the power bank is what induced me to buy it. I like that you can just slip it in your pocket and bring it anywhere with you, on the go. I also like that the power bank takes little time to charge and can charge all my other accessories quickly. If they could only make one that is smaller i would probably buy that one. I'm happy with my purchase.
A**.
Not much of a battery back up
Doesn’t hold much of a charge. As soon as it’s used at all, the battery drains completely. Good for one charge only maximum.
A**S
Best product with these features.
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. 📟
S**S
Better than Nothing, sorta
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.
C**N
it does exactly what it's meant to do
This power bank does exactly what it's meant to do. It's not made to charge a large device or a modern phone. It's very helpful for long outdoor activities like ultra trail running where you need to charge a headlamp or a smartwatch.
C**I
Tiny, but not tiny enough
It is the size of a credit card, but don’t expect to fit it into your wallet. It’s about 3/8 of an inch thick. I have a very large wallet and it still does not fit.
A**R
Great little power bank
Got this power bank to power a small travel router. It’s small and does what i need.
K**E
Could be Cheaper and Better Built
Relatively expensive but compact. The USB A port broke off early but the other port options have worked.
Trustpilot
3 weeks ago
2 days ago