Optional packages:cardboard box;transparent pvc box;case or customzied package

Optional usb charging cable:single usb charging cable;3 in 1 cable or 4 in 1 cable

English manual or other language manual

Shipping ways:

For sample or small order,we usually ship them by Express like UPS,Fedex,TNT,DHL,and it usually take 3-5 days 

For big order quantity,we usually ship them by air(5-7 days) or by sea(30-45 days)

1. We can provide OEM and ODM service

2. We can gurantee 12 months warranty

3. If there are some quality problem,we can replace new one for you and we will also pay the shipping cost 

4. we Gurantee all of our power bank with Grade A 18650 lithium ion battery cell or lithium polymer battery cell and real capacity 

5. Our professional salesperson will reply you and help you to solve problem soon

6. We can gurantee the high quality of products,one by one test before shipment

7. We can gurantee on time shipment

8. Any questions on technical issues,welcome to contact us.We will offer our help at the first time

Shenzhen DeLong Energy Technology Co., Ltd.(Dlongbattery) is a professional new energy supplier in China focusing on the manufacture, research and sale of lithium ion battery product worldwide ,it was established in 2006 and becoming the leading player in the new energy field through several years development .Delong company integrates the cell manufacturing and offer of power solution in according to different application purpose ,our product are widely applied on:common digital devices battery , high discharge rate battery,powerful electric vehicles battery ,low and High temperature lithium ion battery ,power storage and back-up battery pack etc.  

1. What is your battery cell inside?
A: All our power bank use Grade A Polymer lithium battery or 18650 lithium ion battery

2. What is your minimum order quantity?
A: The MOQ is 100PCS, but the quantity for packages should be 3000PCS for OEM orders.

3. What are the payment methods you accept?
A: We accept T/T, Western Union, Paypal,Credit card,E-checking.(Welcome to place Trade Assurance order)

4. What are the shipping ways you can offer?
A: We can delievry the goods by air,express like UPS,Fedex,DHL,TNT or by sea according to customers' requirements.

5. Do your products come with warranty?
A: Yes, we provide 1 year warranty for all products.

6. Do you provide sample of this product?
A: Yes, we can provide 2-3 samples,but your side need to pay the shipping cost.