Shenzhen supplier OEM 48v 20ah lithium ion 18650 ev li-ion battery pack

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Shenzhen supplier OEM 48v 20ah lithium ion 18650 ev li-ion battery pack

1,Specifications for for Rechargeable Lipo Batteries

tems Specifications
Type Lithium ion battery
Nominal voltage 48V
Nominal Capacity 20Ah
Dimension Standard
Weight Approx: 3.5kg
Max.charge current 1.0C
Max.discharge current 30-80A
Charge current Standard Charging: 0.5C

Rapid charge: 1.0C

Standard Charging method 0.5C CC(constant current)charge,

then CV(constant voltage)charge till

charge current decline to ≤0.05C

Charging time Standard Charging: 2.75 hours(Ref.)

Rapid charge: 2 hours(Ref.)

Cycle life >500 times
Operating temperature Charging: 0 °C ~+60 °C

Discharging: 0 °C ~+60 °C

Storage temperature -20°C~+60 °C

2.Applications:

1. Electric vehicles: electric bike, electric scooter, electric motocycle, electric golf cart
2. Electric power tools: electric drill, electric saw, lawn mower
3. Remote control car, boat, toys
4. Solar power system, energy storage equipment
5. Electronic and Medical device, LED light

Warning 

1. Do not throw battery into water or make it wet;
2. Keep the battery away from heat source(like fire or heater);
3. Do not throw the battery into fire or heat the battery;
4. Forbid to hammer to trample the battery;
5. Forbid disassembling the battery in anyway

3,PACKING AND SHIPPING

  1. by UPS/DHL/FEDEX( It takes 3-5 days to arrive after all details confirmed)
  2.  by air cargo( It takes about one week to arrive after all details confirmed)
  3. B y sea shipment ( It takes about one month to arrive after received the deposit and confirmed all details )
  4. Port:FOB Hongkong or CIF terms.
  5. Shipment date within 30 days after confirmed all information and received the deposit.
  6. payment terms:TT /LC

4,Lithium Battery Advantages:

1.Long life cycle, large capacity and good shock resistance
2.Low self-discharge and good discharge performance at low temperature
3.Strong charging acceptance and quick-charging capability
4.Strong over-discharge resistance and charge retention
5.Maintenance-free and no acid or water for maintenance in usage
6.Excellent large current discharge performance, and have obvious advantages in startup and climbing
7. High temperature performance
8. Environmental friendly
9. Lighter weight smaller size
10.Most safe no explosion no fire

5,Xianghe Qiangsheng Electric Tricycle Factory

Xianghe Qiangsheng Electric Tricycle Factory

Qiangsheng is one of the largest supplier manufacturing Electrical & battery rickshaw in China.

We are a highly advanced enterprise specializing in research and development of spare parts of e-rickshaw.

Presently, we are manufacturing e-rickshaw passenger type and e-rickshaw loading type, electric bicycle and all kinds of batteries.

We can manufacture e-rickshaw as per the special requirements of our clients.

Established in 2005, our factory is specialized in the manufacture of electric tricycles.

Located in Xianghe, Langfang, we enjoy convenient access to major transportation networks.

Our factory covers an area of 42,000 square meters and has around 500 staff members.

Furthermore, all our products are manufactured with advanced equipment and strict QC procedures in order to ensure high quality.

With stable and timely supply, credible quality and sincere service, our products sell well in both domestic and overseas markets

6,FAQ for our battery companies ?

1,Q: What’s the main product in QS?

A: Rechargeable battery. Li-ion, Lipo battery and power battery pack.

2,Q: What is overcharge?

A: After charge, tested the batteries’ initial state and capacity. Charge to 10.0V at 3C current, then charge to 0.01C at CV mode. Observe changes in battery appearance.

3,Q: What is over discharge?

A: After charge, test the batteries’ initial state. When the batteries are normal, discharge to 0V at 0.5C. Observe changes in battery appearance

4,Q: Can I have a sample order?

A: Yes, we accept sample order to test and check quality. Batteries can be made as require.

5,Q: Do you have MOQ limit?

A: Yes, we have MOQ limit for mass production, but it depends on battery model. Please contact us for details.

6,Q: How about the lead time?

A: Samples will takes 5-7 business days. Mass production will takes 15-25 days. It depends on quantity.

7,Q: How about shipping and delivery time?

A: Generally, battery will be shipped via Express, such as DHL, TNT, FedEx and UPS, delivery time is 3-5 business days. Or DDP service, delivery time is 11-15 business days. Airline and sea shipping also available.

8,Q: What about after-sale service?

A: We will offer you 1 year guarantee. If there are any problems, please inform us, we will offer you positive solutions.

6,Manufacture battery process mass production video

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