1.If there are some quality problem,then we can replace new one for you

2.All of our salesperson will reply your inquiry or email in time

3.To ensure the high quality products,our QC department will test the products one by one before shipement

4.Fast leadtime:for sample,it is about 2-3 days;for large order quantity,it is about 10-15 working days after payment or deposit

5.Our professional salesperson will help you to find the most competitive price and best service shipping company 

  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 power bank.,etc. 

Q:How many times can this appliance charge for my mobile phone?

A:2-3 times for iphone4 mobile phone

Q:How long will this appliance take to charge my mobile phone full?

A:Approx:1 hour

Q:How long will the power of battery of this appliance remain?

A:3-6 months,however,we suggest you recharge it every 3 months

Q:How about the warranty for this appliance?

A:one year warranty

Q:Does your appliances pass some certificates?

A:Yes,some of our products have CE,ROHS,FCC,MSDS and UN38.3 certificates.

Q:How do you usually ship the goods?

A:We usually ship the goods by sea,air or international express like DHL,UPS,Fedex,TNT,EMS.,etc

Q:How about your products quality?

A:All of our power banks with Grade A 18650 lithium ion battery or lithium polymer battery and with real capacity

Q:How about the leadtime?

A:for samples,the leadtime is only 2-3 days;for large order quantity,the leadtime is about 10-15 working days after payment or deposit