1. Digital Products : Bluetooth, MP3,MP4,P-DVD, Cellular Phone.
2. Portable Electronics: Notebook Computers, LCD light, Digital Camera, Emergency Lighting
3. Backup power supply, Medical Device,Electric nipper .
4. Electric bicycles, HEV, EV.
5. Medical instruments.
6. solar storage power station, ups, backup emergency battery etc.

1. High capacity, low inner resistance, long cycle life, low self-discharge.

2. Rapid charge-discharge cycle life up to more than 500 times.

3. Provide both single cells and battery packs.

4. Fast charge available.

5. Genuiue  capacity, steady discharge and high temperature discharge.

6. Customized sizes, packs, tags, labels, plugs, connectors, over current protection, temperature control protection is available

7. No memory effect,environment friendly

8. Inside battery cells can be customized like Chinese 18650 battery cell or imported battery like LG,Panasonic or Samsung




 

Our services:
 

 1. Your inquiry related to our products price will be replied in 24 hours.   

 2. Experienced staffs to answer all your enquires in fluent English. 

 3.We make the OEM and ODM service for more than 5 years. And the Paypal accepted,

 4.Protection of your sales area, ideas of design and all your private information.

 5.No matter big order or small order , we will provide all the best  quality , best service.

 6.If our our products ave any problem that we caused, they will be sent free in the next order.

After sale service

1.1 year warranty 

2. We will replace the broken parts with new parts  in the next order

3. Choose the cheapest and safest shipping company 

4. Track the shipping status until you get the goods

5. Welcome any feedback and advice for our products.

Extra service

1. MOQ: Sample order is available

2. OEM: The larger the quantity the cheapper the price.

3. ODM: 10000pcs, keep your design privately. And won't supply it to others.

4. Provide designed package depends on your needs

Company information:
 

Shenzhen Delong Energy  committed to the offer our customers best lithium battery solutions.

Established in 2012,Shenzhen Delong has very rich experiences on manufacturing a wide range of lithium ion batteries products. Our products line covers Electric Bike Battery, Power Lithium-Ion Battery Pack,Industrial Equipment Battery, Storage System Battery and all Portable Device Lithium Ion Battery Pack.

We have exported the lithium ion batteries to many countries all over the world,we have built good and long-term business relationship with many customers because of high quality,reasonable price,fast leadtime and excellent after sales service.Welcome to join us!


FAQ:
Q1:What is over-charge?
A1:After normal charge, test the batteries' initial state and capacity. Charge to 10.0V at 3C, then charge at CV  mode to 0.01C. Observe battery's variation of appearance.

Q2:What is over-discharge?
A2:After normal charge, test the batteries' initial state. When the batteries are normal, Discharge to 0V at 0.5C.  Observe battery's variation of appearance.

Q3:How about your leadtime?
A3:3-5 days for samples;20-25 days for bulk order.

Q4:What kind of certifications can you provide?
A4:If your order quantity is big,then we can provide the CE,ROHS,FCC,MSDS,UN38.3 certifications and test reports.

Q5:What is external short circuit?
A5: After normal charge, test the batteries initial state, Keep the battery into explosion protection cover, short-  circuit the positive and negative terminals directly (general resistance shall be less than or equal to 50mΩ). Sto  p the test when the temperature falls to 10ºC lower than the peak value. Observe the variation of the batteries'  appearance and temperature.

Q6:How do you usually ship the battery?
A6:For samples,we normally ship them by Express like UPS,Fedex,DHL,TNT,and it only take 4-6 business days to be arrived;for mass production,we normally ship them by air or by sea.