• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Foxsky
  • Model Number: F842
  • Dimension: 96x45x22mm
  • Weight: 90g
  • Capacity: 4001-5000(mAh), 4000mah, 4400mah, 5200mah
  • Outport: 5V/1A
  • Input: 5V/1A
  • Socket Type: USB
  • USB Port: Single Port
  • Battery Type: 18650
  • Features: Convenient
  • Product name: mini power bank
  • Shell: Plastic
  • Exchange rate: 85%
  • Feature: LED Indicators, LED torch
  • Charge time: 5-6 hours
  • Discharge time: 2.5-3 hours
  • Warranty: 12 Months
  • lifetime: over 500 times
  • Color: Gray, White

Packaging & Delivery

Packaging Details Gift box + user manual + USB charging cable ( can change to other cable as request) + power bank
Delivery Time Sample within 3 Days, Bulk Order Within 15 to 24 Working Days

gadgets 2017 technologies mini power bank 4000mah 



Product Description

 The features of mini power bank  


1.Compatibility for mobile phone, camera, tablets, MP3/MP4 player and so on.


2.High quality 18650 battery, over 500 times life cycle.

3.Indicator light shows the power status, LED Smart power indication.


4.Clear & simple design, mobile and portable, high capacity.


5.Built-in smart IC and multi-protection, for over-charge, over-discharge, over-current, short-circuit and temperature.




Photos show of mini power bank 






The parameters of mini power bank 



gadgets 2017 technologies mini power bank 4000mah
Battery type18650
Charge time

5-6 hours

Discharge time2.5-3 hours
Other featureLED indicators; LED torch
Warranty12 months





Certificates of  mini power bank  





Other models 






Trade terms

Trade terms 


1. Delivery term: FOB Shenzhen/ FCA HK
2. Payment term: T/T for sample. when big order, 30% T/T advance, 70% balance before shipment, paypal is acceptable for samples orders. 
3. Lead time: 3 working days for sample, negotiable for big order lead time.
4. Shipping by sea, by air, by Express (DHL/UPS/FEDEX/EMS/TNT).




Company Information

 Company Introduction 

Shenzhen Fudeng Technology Co.,Ltd was established in 2009, located in Shenzhen, adjacent to HK, which integrates R&D, manufacturing and sales, our clients covering Asia, Europe, North America, Middle East more than 50 countries and regions.with several years hard working, we have built up a worldwide recognized brand "FOXSKY" in power bank industry. Our products have been arrpoved by CE/ROHS/FCC, and exported to 50 countries above.  We are proud to be the selected reliable supplier in power bank products for Europe, Americas, Middle East, S.E, Asia and Australia etc.

Today "FOXSKY" has established itself as a leader in the manufacturing, researching, marketing of above mentioned goods for worldwide clients. We take "honesty, excellence, perpetual innovation,high efficiency"as our principles, we are looking for reliable and turstworthy partner worldwide, welcome to cooperate with us!



 We are factory, cooperate with us:

1. Factory price could be given

2. Delivery will be prompt.

3. A strictly Quality Control System will provide you with rather high quality goods.

4. A Professional sales team is always ready to hear your voice before and after the deal,

5. Any of your requirements will be our priority!

                                                                                                   ------Welcome to join us!!!







1. Why do we choose you FOXSKY?

A: We promise: All our power bank with A quality & non-oversized new battery to make sure  a safe, stable charging environment. If we break our promise, we will return all the money!



2. Do your products come with warranty?

A: Yes, we promise 1 year warranty for all products.  
3. Can I get some samples to test the quality?

A: Yes, we can provide samples, We will return you the sample fee in next bulk order.

    Moreover, we keep samples of all models in stock in general.


4. What are the payment terms you accept?

A: We accept T/T, Western Union, L/C at sight etc. 


 gadgets 2017 technologies mini power bank 4000mah 


Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland)
Transaction Level:
Supplier Assessments:
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $257,000
Learn More