48v 20ah electric bike battery pack 18650 21700 lithium ion bike akku

Dear buyers：

★★Important Notice:
•Please make a clear note when placing an order or contact customer service to explain the required motor power (watts) and charging and discharging plugs!
•Please browse the battery parameters carefully before purchasing, choose the battery suitable for your device, and avoid purchasing mistakes!
•If you have any questions, please contact customer service.

About Delivery:

Ship from China:
1. We can ship by air duty-free to most European countries, Russia, Australia, the United States, Canada, etc.To other countries it depends , just confirm with us.

2. This fee does not include remote area fees. If your address is in a remote area, additional charges will apply.

3. If there are uncontrollable delays due to transportation reasons, please understand and wait patiently.

4. The battery is a special product, and all batteries need to go through multiple cycle tests before leaving the factory. Once the order is confirmed, the production and testing time takes about 3-5 days.

5. If you have other requirements, please let me know.

return policy:

1. If you receive defective items, please notify us within 7 days and we will provide a replacement or a full refund, depending on the condition of the goods.
2. If it's not our fault and you purchased the wrong item, please contact us to resolve the issue.
3. If you have any questions, please contact us before raising a dispute.

Warranty and Maintenance:

1. We provide 12 months warranty for our items. If you have any questions within 12 months, please feel free to contact us to resolve it for you.
2. If you need more maintenance information, please feel free to contact us.

We don't supply warranty service for the following situation:

1) The battery goes over the water.
2) The battery is broken by man-made.
3) The cells are burnt out after incorrect using.
4) Return the battery without reason.
5) Open a dispute without contacting us.

Guarantee

1) We provide 12 month for all electric bike batteries.
2) Any battery with quality problem within one month we can resend you a new one after provide your proof.
3) Any battery with quality problem within one year, we provide free repaired.
4) All our electric bicycle batteries with high quality cells and BMS, and they will be 100% tested before shipping.
Top brand lithium battery manufacturer in China, rest assured to buy.

Feedback

1) Our battery can fit most of motor kit.
2) Please contact us If you can't confirm whether our battery can fit your motor.
3) If you have any problems please feel free to contact with us BEFORE you leave negative feedback or file a dispute.
4) Any problem is not a problem, as long as you contact us.
5) Your satisfaction and positive feedback is very important to us.
6) Please kindly leave us a positive feedback and 5 Stars if you are satisfied with our items and services.

FQA

Q: What type of this electric bike battery?
A:It is li ion battery,Chemical is Li(NiCoMn)O2.
Q：Why does it show that the goods have been signed for before they arrive?
A：This is because when shipping from China, the domestic transshipment logistics tracking number is submitted in the early stage. We will promptly update international logistics information within 15 days after shipment.During this time， please don't worry.
Q: What is the difference between li ion battery,NI-MH battery and Lead acid battery?
A: E-bike Li-ion battery have longer cycle life,normal cycle life is 800-1000 times, and also with light weight,small size, No memory effect,Nontoxic, environmental friendly.
Q: What's temperature range of charge and discharge?
A:Charge Temperature: 0 to 45°C and Discharge Temperature: -20 to 65°C
Q: What kind of cells used on this electric bicycle battery?
A: Different capacity with different cells, we make the battery with original A grade Samsung,Panasonic,Sanyo,LG and high quality domestic cells,all can be customized as your requests.
Q: Do your e-bike battery come with charger?
A:All of our e-bike batteries come with charger.We have normal charger and fast charger.If you need fast charger please contact with us.

Battery usage precautions:

1. Please fully charge the battery before first use.
2. Do not immerse the battery in water or get it wet!
3. Do not reverse the positive and negative poles, or use wires or other metal objects to short-circuit the battery!
4. Do not nail, knock, step on the battery or disassemble the battery and battery pack in any way!
5. Do not put the battery into a microwave oven, pressure vessel or fire source!
6. If the battery emits a peculiar smell, generates heat, deforms, discolors or has any abnormality, please stop using it immediately!
7. Do not use the battery in direct sunlight or high temperature environment. Otherwise, the battery pack will overheat, affecting battery performance and shortening battery life!
8. The battery pack and charger should be stored in a clean, dry and ventilated place to avoid contact with corrosive substances and away from fire and heat sources.
9. When storing the battery pack for a long time, please charge the battery pack to about 50% capacity and store it in a dry and ventilated place. Charge it for 2 to 3 hours every 3 months.
10. If you have any questions about product quality, please contact us via email immediately and we will try our best to solve these problems!