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4000 mah Portable Power Bank for Phone

16 reviews
100% of buyers enjoyed this product! 992 orders
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  • Item Type: Power Bank
  • Material: ABS
  • Battery Type: 18650 Lithium Battery
  • Output: 5V/1A
  • Output Interface: Single USB
  • Input Interface: Micro USB
  • Size: 9.5 x 2.7 x 2.3 cm / 3.74 x 1.06 x 0.91 inch
  • Weight: 160 g / 0.35 lbs
  • Color: Black
  • Capacity: 2000 mah, 4000 mah, 8000mah
  • Wire Length: 30 cm / 11.81 inch

Package Includes:

  • 1 x Power Bank


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Crazy Practical (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

16 reviews
100% of buyers enjoyed this product!
5 stars
4 stars
3 stars
2 stars
1 star
verifed buyer
4 Aug 2019

Material quality, as advertised.

verifed buyer
22 Jul 2019

In brest, belarus-in 34 days. Everything's fine.

verifed buyer
21 Jul 2019

Great 5 stars deserve

verifed buyer
14 Jul 2019

Good technique i was satisfied. My powerful phone is charged with a bang, enough for one and a half charge. One full and the second half.

verifed buyer
4 Jul 2019

Excellent store

verifed buyer
3 Jul 2019

so far so good. Tested it, works. Additional feedback after extensive use.

verifed buyer
30 Jun 2019

Sent 29.05, received 30.06. Track tracked. Packed well. Came loaded at 71%. The store is sociable. As a gift sent micro-b cable. Everything works. I advise you.

verifed buyer
27 Jun 2019

Awesome product. Works as described.

verifed buyer
20 Jun 2019

The goods were delivered. There were problems with delivery. Opened a dispute. Well, everything was decided. Late but the package came. The store is sociable and cultural. Thank you all

verifed buyer
16 Jun 2019

Excellent battery, i recommend! Came charged at 69%. Charged three iphones and two androids and then until the end did not discharge the bank. Super.

verifed buyer
9 Jun 2019

Very satisfied, good power reserve. I recommend

verifed buyer
8 Jun 2019

Everything is ok.

verifed buyer
2 Jun 2019

Power Bank as description and required, proven right after have her receipt and working at least for that which relates to the remaining power, we will see in below, everyway seems a great product.

verifed buyer
30 May 2019

Zamovili 29.03 came 30.05, turned the cross, and turned the thunder. Please give us a review of the store, packed with dignity, can kupuvati for podarunku. Dino pidvela delivery, duge dovgo.

verifed buyer
29 May 2019

Everything is very good, works great. there was a vacation abroad.

verifed buyer
19 May 2019

Perfect same as photo

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