• Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery
  • Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery
  • Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery
  • Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery
  • Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery
  • Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery

Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery

Port: Shenzhen, China
Production Capacity: 50000PCS/Day
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Type: Lithium-Ion Batteries
Usage: Car, Bus, UPS, Electric Power, Lighting, Electric Bicycle, Boat
Nominal Voltage: 3.7V
Discharge Rate: Low Discharge Rate
Shape: Cylindrical Battery
Electrolyte: Li-ion

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Basic Info.

Model NO.
21700
Installation
Packaged
Rechargeable
Chargeable
Trademark
Tewaycll
Transport Package
Standard Package
Specification
21700
Origin
Guangdong

Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike BatteryBest Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery

INR 21700 40T Battery Specification Sheet

Item

Specification

Standard Discharge Capacity

Min. 4,000mAh

- Charge: 0.5C(2A), 4.20V, 0.05C(200mA) cut-off

- Discharge: 0.2C(800mA), 2.5V cut-off

Rated discharge capacity

Min. 3,900 mAh

- Charge:1.5C(6A), 4.20V, 0.025C(100mA)cut-off

- Discharge: 10A, 2.5V cut-off

Nominal voltage

3.6V

Standard charge

CCCV, 2A, 4.20 V, 200mA cut-off

Rated charge

CCCV, 6A, 4.20 V, 100mA cut-off

Charging time

Standard charge : 180min / 200mA cut-off
Rated charge: 70min / 100mA cut-off

Max. continuous discharge

(Surface temperature)
35A(Without temperature cut)
45A(With 80ºC temperature cut)

Discharge cut-off voltage

2.5V (End of discharge)

Cycle life

Capacity ≥ 2,400mAh/ after 250cycles
(60% of the standard capacity

- Charge : 6A, 4.20V, CCCV 100mA cut-off
- Discharge: 35A , 2.5V cut-off

Retention characteristics

Capacity recovery(after the storage) ≥ 3,510 mAh
(90% of the rated capacity

- Charge : 6A, 4.20V, CCCV 100mA cut-off
- Storage : 30 days ( 60ºC)
- Discharge : 10A , 2.5V cut-off

Cell weight 

70.0g max

Cell dimension

Height : Max 70.30mm
Diameter : Max 21.22mm

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Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery




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Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery

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Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery


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Best Price High Capacity 3.7V 21700 4000mAh Lithium Electric Bike Battery
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 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.

 

3. Q: Do you accept customize the any battery size we need?

A: Yes, usually the MOQ is 5K pcs.

 

4. Q: Are you manufacturer or trading company?

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

 

5. Q: What's the warranty of your product?

A: One year

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