Built-in USB cable

This power bank is equipped with a built-in USB cable, which enables you to charge your devices without bringing an extra cable with you especially when you are out for a trip. Cable-free, trouble-free.

Unique design

There are four LED indicators while no on/off button. Just use your finger to tap the indicator like knocking the door, it will show you how much power is has. The color of the built-in cable differs from the main body of the power bank, making the whole device colorful and attractive.

Safety guaranteed

The PB4000CB adopts high-quality Lithium-ion polymer batteries to ensure a high conversion rate as well as short-circuit and over-current protection. The power bank will automatically shut down when such situations occurred.

Dimension 134*69*10 mm
Capacity 4000 mAh
Weight 120 g
Noe Ruiz 09/15/2016

Would highly recommend. This is the second one I have purchased

Fastest charging, cheapest, thinest, and most convenient portable charger! Would highly recommend. This is the second one I have purchased. This one is for my girlfriend. And she loves!

thomasgao1978 09/10/2016

Good deal. I hope it lasts longer than some ...

Good deal. I hope it lasts longer than some of the other brands and units I have purchased in the past.

Judith L Zoerb 09/05/2016

Five Stars

Really nice to have. Works Well

Ricardo C. 09/05/2016

The EasyAcc Ultra-Slim Power Bank definitely exceeded my expectations. ...

The EasyAcc Ultra-Slim Power Bank definitely exceeded my expectations. I was originally looking at a charger from Anker for my wife but a tech blog I followed pointed out the price (w/ promo code) on this little guy at $4.99. Man was this a steal! I charged it up to 100% and had it charge my Sony DSC-W80 and my PS4 controller from 0 to 100% on a single charge from the battery. The little guy still had juice! I'm a firm believer in you get what you pay for but that's not the case with this battery pack, I got waaaaaaaay more than I paid for...EasyAcc Cable 4000mAh Power Bank Ultra-Slim Portable External Battery Charger Built-in Micro USB Cable for Smartphone-White and Red

Mark Tolland 08/12/2016

Pokemon fun power!

We used these with the kids to go Pokomon hunting without having to take a break. Yippee!!

Virgil Watson 05/21/2016

Five Stars

great product

Mariabx485 05/11/2016


It looks like its burnt out cause once fully charge and i connect to phone it goes from all dots to 1 dot and my phone gets 14% ..HATE THAT.

Consuello J Mitchell 04/11/2016

Dependale Power Bank

Heavy but useful to charge on the go. The Micro Short USB cable is tidy and neat!

Rowskey 03/29/2016

Five Stars

Works perfectly, very light, plenty of power for what I need.

Peter G. 03/28/2016

Excellent way to keep your phone charged.

Lightweight and super fast 2 amp charging. This battery has the built-in cable which is very convenient. It does NOT need a special charging cable nor will it turn itself on when bumped around in your bag. Simple and elegant. I have recommended this to several people.

Chase Campbell 03/11/2016

Five Stars

Zero complaints

Rebecca Rakes 03/06/2016

Wonderful and Convenient

I purchased two different portable battery charges for a trip and this one was by far my favorite. I love that the cord is included and tucks right into the device. It's very convenient. Perfect size. It charges fast and without getting too hot. Highly recommend!

Sam Courtney 02/25/2016

Stylish, trendy and powerful!

This battery is the ultimate - provides nearly 2 full charges on Samsung S4. Easy to use and very stylish in shape and color! Highly recommend especially for those wanting a stylish trendy looking battery!

OysterBlue 02/12/2016

Slim and Portable Power Bank for Samsung Note 5

Very slim power bank. I use it for my Samsung Note 5, it does hold enough power to charge my Note 5 from 10% back to 100%. I am able to fit power bank into my jeans' pocket along with the phone. Worth Buying.

Ricardo 02/03/2016

Good, but should include spare cables..

Very good product.
I always buy Power Banks with Built-in Micro-USB cable and this is the best so far.
The 2 reasons why I don't give a 5 star are:
- They should include 2 spare red cables. The cable gets damaged over time, what will force me to carry an extra cable.
- the micro USB side of the cable does not need the metal connector to fit so tight. Only the Red Rubber around the metal connector needs to fit tight. The risk of damaging the metal connector is high and this makes it harder to use the cable.
If those two problems were solved, i would have given a 5 star!!

Gabrielle Mintz 01/19/2016

Nice external battery, good value for a great product.

Very nice, bought it for my sister to use because she always forgets to charge her phone. I like the option to see how much juice is left by tapping the side. A great value!

laurapr27 01/18/2016

Five Stars

Fast shipping great product

Amazon Customer 12/29/2015

Good Power Bank

I have had this product for a couple of weeks now. The battery is pretty big, I use it to power my Arduino, but I can also use it to charge my phone. It's enough battery to charge my iPhone 6s about 2-3 times. It has almost the same size as my iPhone, it's just a bit thicker than it, but still slim enough for my pocket. I don't need the cable thats built in, since I have an iPhone, but it would be very helpful for Android users. I rate this power bank five stars, because I didn't see anything negative at it.

ghtoyou 12/19/2015

So far

So far so good

tonebone 12/08/2015

Good little charger

This little charger is perfect except in one small way in that it doesn't pass through, I have an import car that doesn't charge your phone except when it's running and then when it's running this doesn't charge your phone. I found one that I'm going to purchase like that though that does pass through at a significantly higher price, but for what it does it's been very good!

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EasyAcc 4000mAh Ultra Slim Power Bank with Built-in Cable

EasyAcc 4000mAh Ultra Slim Power Bank with Built-in Cable

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