Manufacture Price 48V 20ah Deep Cycle Lithium Ion Battery Pack

18650 battery cells quality:

Quality Lithium-ion cells with high power and energy density;
Passed abuse tests of over-charge/discharge test, high-low temperature test, impact test and puncture test;
With good safety performance, without problems of short-circuit, leakage, inflammation and explosion; 
No memory effect, low self-discharge rate; 
Environment-friendly;
Long cycle life,after 500 times charge and discharge,the remaining capacity is 80%

Advantages:

1. High energy density

2. High working voltage for single battery cells

3. Environment friendly

4. Long cycle life

5. No memory effect

6. Capacity, resistance, Voltage, platform time consistency is good




Packaging and shipping:
1. Package: Industrial package, Customized package or international transportation standard package
2. Shipping: by Express(UPS,DHL,FedEx,TNT,EMS....),by parcel post, by air,by sea and by special economical way;by express will take 4-5 business days to be arrived;by air will take 5-7 days;by sea will take 30-45 days



Our services:

1. Professional OEM & ODM service

2. Outstanding design and R&D team

3. Best quality control--55 QC checking points

4. Small quantity order / trial order accepted

5. Will  reply your inquiry or emails within 24 hours

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

Payment:

1.Payment: 30% before mass production;70% balance will be paid before shipment or after bill of copy

2.FOB , EXW and CIF all are available

3.Samples can accept Paypal

Company information:
Shenzhen DeLong Energy Technology Co., Ltd. is a professional new energy supplier in China focusing on the manufacture, research and sale of lithium ion battery product worldwide. Our  lithium ion battery products are widely applied on digital device, electric vehicle, electric tool and back-up power system, bluetooth headset, digital camera, MP3 player, cellular phone, PDA, DMB, digital camcorder, mining lamp, RC model airplane, electric vehicle, etc.

Our management temas have been in rechargeable lithium ion battery field for more than 10 years,we have own factory and testing room.We have passed the ISO9001,and we can provide you with many kinds of certifications like CE,ROHS,FCC,UL,IEC62133,MSDS and UN38.3.We can give you good battery solutions.If any inquiry,welcome to inquiry!


FAQ:
 

1. Q: Do you have current sample in stock?

     A: Usually we don't have, because different customers have different requests, even the voltage and capacity are the same, other parameters maybe different. But we could finish your sample quickly once order confirmed.

2.  Q: What's the delivery time for mass production?

     A: Usually 20-30 days after payment or deposit,it depends on the quantity, material, battery cell model and so on, we suggest to check delivery time case by case.

3.  Q: What kind of certificates could you provide for the battery?

     A: It's custom-making design, no current certificate, but we could apply CE, UL, UN38.3 and other related certificates for you, but the certificates fee needs to be paid by you, if your quantity is big enough, certificates fee could be refunded.

4.  Q: Do you offer charger for battery?

     A: Yes, we do. If you also need charger, please mention it when sending inquiry, kindly note that our charger cost is not included in the battery cost. We have some partnered charger factory.

5.  Q: Are you manufacturer or simply trading company?

     A: We are professional lithium battery  manufacturer, and we sincerely welcome you to visit our factory!

6. Q:What is your payment terms?

     A:30% deposit before production,balance payment will be paid before shipment or after copy of bill.