10 Years Manufacturer 21700 Battery Cell Lithium Ion Battery Lithium Batteries Storage Battery LiFePO4 Battery Rechargeable Battery Solar Lighting Battery

• Type: Li-ion Battery
• Cathode Material: LFP
• Rechargeable: Yes
• Model NO.: YLY21700 4000mAh
• Size: Small
• Battery Type: Lithium Battery
• Supply Ability: 20000 PCS Per Day
• Cycle Life: 800 Times
• Temperature: ′-20~60
• Color: Custominzed
• Factory: 10-Years Manufacturer
• Electrolyte: Li-ion
• OEM/ODM: Yes(Accepted)
• Connection Mode: Series and Parallel
• Accessories Type: Battery
• Capacity: 4000mAh
• Transport Package: Safe Standard Export Cartons
• Specification: 21*70mm
• Trademark: YLY, OEM
• Origin: China
• HS Code: 8507600090
• Production Capacity: 1000K/Year

Product Description

Battery Specification
Item	Specification
Nominal capacity	4000mAh @0.2C
Minimum capacity	3990mAh @0.2C
Nominal voltage	3.2V
Max Charging voltage	3.65 ±0.05 V
Discharge ending voltage	2 ±0.05 V
Standard charge current	Customized
Standard discharge current	Customized
Recommended cell surface max temperature during charge and discharge	Charge: 0~45ºC Discharge: -20~60ºC
Storage temperature and time	1 year: -20~25ºC 3 months: -20~45ºC 1 month: -20~60ºC
Cell dimension	21*21*70mm
Weight	About 65g
BMS Electric Features
Overcharge detection voltage	3.65 ±0.05 V
Overdischarge detection voltage	2.0±0.05 V
Max continuous discharge current	6000mA
Operating temperature	Customized
NTC resistor	Customized
0V battery charge function	Available

Q1:Where can I get the price?
A: We usually quote within 24 hours after we get your inquiry. For urgent case, please call us or tell us in your email so that we'll regard your inquiry priority.

Q2.Do you have MOQ for Your Batteries?
A: We want to support our customer without MOQ request for netural order.

Q3. Can I have a sample order?
A. Yes, we welcome sample order to test and check quality.

Q4. What about the lead time?
A. Sample needs 7 days, mass production time needs 3-5 weeks, it depends on order quantity.

Q5.Is it OK to print my logo on the product?
A: Yes. We welcome OEM orders.

Q6:How long does the warranty?
A: In general, the time is 1 year.

Q7: What is your terms of payment?
A: We accept T/T and L/C

Q8.Which certificates do you have?
A:We have CE/FCC/ROHS/UN38.3/MSDS ...etc.

Q9.How do you ship the goods and how long does it take to arrive?
A: DHL, UPS, FedEx or TNT for samples. For mass order, you can choose Sea or Air shipment.

Q10:Can we visit your factory?
A: Warmly welcome. Our factory located in shenzhen, very close to Guangzhou or Hongkong.