Baseus 20000mAh Power Bank PD QC 20W Portable Charger External Battery Quick Charge Powerbank for iPhone HUAWEI Xiaomi Samsung
129.46 69.28 $
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ID: 32542
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Power Bank 30000mAh TypeC Micro USB C Powerbank LED Display Portable External Battery Charger 30000 mAh For iPhone Xiaomi Tablet
4.8 (59 votes) | 218 orders
Price:
US $107.45
/ piece
Discount Price:
US $
67.95
/ piece
-37%
It's incorrect to test the capacity with USB tester, the power bank is 3.7V, while the USB tester is 5V.
The normal energy of 30000mAh battery capacity power bank is 30000mAh*3.7V=111000mWh, when it charges phones, the output will be 3.7V/5V*30000mAh=22200mAh.
ASOMETECH 30X Power Bank
Product Cell: Polymer Cell
Power display: LED Display
Powerbank Weight: about 544g
Product Size: 155*73*32MM
Battery Capacity: 30000mAh
Micro/Type-C/Lightning Input: 5V1A-5V2.1A
2xUSB-A Output: 5V1A-5V2.1A
Product features: Three inputs, Two outputs
Product Color: Black/Red/White
Compatibility: For 99% of electronic devices
Note:
It's not correct that some buyers test the capacity of our power bank with USB tester and thought the capacity is less than we marked.
Why the battery capacity is 30000mAh and the rated capacity is only 22000mAh?
There are two reasons:
1. Law of conservation of energy
The unit to measure the power bank is not only the mAh, but also the mWh (mAh*V=mWh).
The voltage of power bank is 3.7V according to lithium battery standard, while most mobile phones, computers and other mobile devices are the standard 5V voltage for USB interface. Therefore, the power bank needs to boost the voltage to 5V before charging the phones.
The normal energy of 10000mAh battery capacity power bank is 10000mAh*3.7V=37000mWh, when it charges phones, the output will be 3.7V/5V*10000mAh=7400mAh.
The normal energy of 20000mAh battery capacity power bank is 20000mAh*3.7V=74000mWh, when it charges phones, the output will be 3.7V/5V*30000mAh=14800mAh.
The normal energy of 30000mAh battery capacity power bank is 30000mAh*3.7V=111000mWh, when it charges phones, the output will be 3.7V/5V*30000mAh=22200mAh.
2. Energy loss during charging
The power bank cannot output the 100% energy during the process of charging due to the energy loss of boosting voltage. And the conversion rate will be influenced by the output current. Generally, when the output current is 1A, the conversion rate is higher than when the current is 2A.
Please note that the conversion rate is basically in the range of 60% -70% in the entire power bank industry.
There are two capacity standards for power bank, one is the lithium battery capacity (the capacity we write in our product title), and the other is the rated capacity (the capacity measured by buyers with USB tester).
For example, the power bank of some famous brands have a rated capacity of 18,000-19500mAh for their 30,000mAh battery capacity.
Google it for more detailed information about battery capacity and rated capacity.
- Certification: CE
- Max Input: 10W
- Shell Material: Plastic
- Features: With Flashlight,Built in Cables,Digital display,Charger & Battery in 1
- Support Quick Charge Technology: No
- Input Interface: Micro USB,USB Type C
- Output Interface: Double USB
- Battery Type: Li-polymer Battery
- Brand Name: ASOMETECH
- Origin: Mainland China
- Type: Portable Power Bank
- Battery Capacity: 30000mAh Power Bank
- Rated Capacity: 18000mAh 5v
- Main material: Class A lithium ion polymer battery
- Feature 1: For iphone 6 6s 7 8 Fast charging Powerbank
- Feature 4: For iPhone 5 5S 5C SE Powerbank
- Feature 5: 30000mAh Power Bank
- Feature 6: Fast Charging Portable Charger For Phones Tablet
- Feature 7: For iPhone X XS MAX External Battery
- Function 1: Portable Power Bank
- Function 2: LED Display
- Function 3: Portable
- Function 4: Long battery life
- Input: 5V/1A*3
- output: 5V/2A*1 5v.2A*1
- Surface treatment: Textured surface
- Material: Plastic abs
- capacity: 30000mAh
- Function 5: Powerbank/poverbank/power bank
- Compatible Model 1: USB Type C PD Power Bank For Iphone xs xr x 8 7
- Compatible Model 2: External Battery Pack For Xiaomi Samsung Phone power bank powerbank
- USB 2 Output: DC 5V-2.4A Max
- For iPhone Input: DC 5V-1A Max
- Micro Input: DC 5V-1A Max
- Type C input: DC 5V-1A Max
- Type: Power bank For iPhone X XS XR XS MAX
- Pacakge: with Retail Package
- Wholesale / Dropshipping: Support
SHIPPING AND DELIVERY
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 location 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 |
Do you provide tracking information?
Yes, you will receive an email once your order ships that contains your tracking information.
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.
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.
REFUNDS & RETURNS POLICY
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.
Refunds
Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.
If you did not receive the product within the guaranteed time(60 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 receive you may request a refund but you must return the item at your expense and the item must be unused.
- 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 CNTRONIC Consumer Electronics Retailer (i.e. not cleared by customs, delayed by a natural disaster).
- Other exceptional circumstances outside the control of cntronic.com
*You can submit refund requests within 15 days after the guaranteed period for delivery (60 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.
Exchanges
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.
LARGE ORDER DEALS
Thank you for your interest doing business with us!
If you would like to get a discounted price for your large purchase orders, fill in the required blanks along with your email address, the product Item ID # and/or the link of the item that you want to order, item quantity (minimum of 30 pieces), shipping country and payment method is required. We will contact you with a discounted price as soon as we receive your inquiry.
