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ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
Specifications
Brand Name :
TAC OEM & ODM
Model Number :
21700 400mah 3.7v
Certification :
MSDS REACH ROHS
Place of Origin :
Shenzhen zhuhai
MOQ :
500 pcs for single cell , 50pack for battery packs
Price :
USD 2.5 each pcs
Supply Ability :
100000PCS EACH WEEK
Delivery Time :
7-10 days after order confirm for stock model
Packaging Details :
meet UN38.3 Certification
material :
lithium ion battery
voltage :
3.7v
capacity :
4000mah-5000mah
discharge rate :
0.2C
Size :
D: 21mm H:70mm
circle life :
500 times
Current :
Max discharge current 0.2C
warranty :
12 months
color :
purple \ blue and OEM
positive type :
flat and top
Payment Terms :
30% advance for battery Pack
Description

21700 Lithium Battery For Electrical Vehicle 3.7V 4000MAH

Specification for 21700 Lithium Battery For Electrical Vehicle 3.7V 4000MAH

No.ItemsSpecifications

Remark

1

Nominal Capacity

4000mAh-5000mAH

0.5C Standard discharge

2

Minimum Capacity

3800mAh-4800mAh
3

Nominal Voltage

3.7V

Mean Operation Voltage

4

Delivery voltage

3.70~3.9V

Within 10 days from Factory

5

Charge Voltage

4.2V±0.03V

By standard charge method

6

Standard charging method

0.5C constant current,4.2V constant voltage charge to 4.2V,continue charging till current decline to ≤0.01C

7

Charge current

0.2C400mA

Standard charge, charge time about 7h(Ref)

0.5C2000mA

Rapid Charge, charge time about: 3.5h(Ref)

8

Standard discharging method

0.5C constant current discharge to3.0V,
9

Cell Internal Impedance

≤50mΩ

Internal resistance measured at AC 1KHZ after 50% charge

Cell Electrical Performance

NoItemsTest Method and Condition/
Criteria
1

Rated Capacity at 0.2C(Min.)

After standard charge, the capacity shall be measured on 0.2C discharge till the voltage discharge to3.0V,

≥3800mAh≥100%

Rated Capacity at 0.5C(Min.)

After standard charge, the capacity shall be measured on 0.5C discharge till the voltage discharge to 3.0V,

≥3686mAh≥98%

Rated Capacity at 1C(Min.)

After standard charge, the capacity shall be measured on 1C discharge till the voltage discharge to 3.0V,

≥3534mAh≥96%
2

Cycle Life

Charging and discharging battery as blew conditions
0.2C standard charge to 4.2V end-off
0.2C standard discharge to 3.0V cut-off
Continuous charge and discharge for 300 cycles ,the capacity will be measure after the200th cycle

≥80% of initial capacity
3

Capacity retention

The battery to be charge in accordance with standard charge condition at 20~25℃,then storage the battery at an ambient temperature 20~25℃ for 28 days.
Measure the capacity after 30 days with 0.2C at 20~25℃ as retention capacity

Retention capacity

≥85%

Application for 21700 Lithium Battery For Electrical Vehicle 3.7V 4000MAH

  1. EV / E-CAR / E-SCOOTER /E-Bike
  2. Energy storage system// Portable ESS
  3. power tool /
  4. Solar production
  5. 21700 cells with cap in electric bikes.

Package For Bulk

20-50 pcs each box and 4 box pcs in one standard export carton
Tac Also support display box and specially color carton for OEM ODM order

ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH

ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH

Delivery Time Information

7-10 days for bulk cell base on industry pack , this is normal model , we prepare the stock continue
25-30 days for battery pack after the customer confirm the detail accessories for examples PCB Connector etc.

Period of Warranty


The period of warranty is one year from the date of shipment. We guarantees to give a case of cells with defects proven due to manufacturing process instead of the customer abuse and misuse.

The suggestion for Storage of the Lithium-ion Batteries

The batteries should be stored at room temperature, charged to about 30% to 50% of capacity.
We recommend that batteries be charged about once per half a year to prevent over discharge.

Similar Model for Lithium ion Cylindrical Battery

MODELCAPACITYVOLATGE
ICR10440250-400MAH3.7V
ICR14500450-600MAH3.7V
ICR17335750-900MAH3.7V
ICR184901100-1500MAH3.7V
ICR185001500-1800MAH3.7V
ICR186502000-2800MAH3.7V
ICR266503000-3300MAH3.7V
ICR207003500MAH3.7V
ICR217004000MAH-5000MAH

3.7V




Battery Photo for Similar Model ( Bulk cell)

ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH


Lithium-ion Battery Pack Made By ICR21700 4000MAH 3.7V


ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH

Normally 21700 Cell positive is flat type , but we can support both of flat type and top type

Flat Type

ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH

TOP Type

ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH























































Product tags

gld lithium battery cr2032

,

saft ls14250 battery

,

saft ls14500 battery
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ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH

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Product Detail
Brand Name :
TAC OEM & ODM
Model Number :
21700 400mah 3.7v
Certification :
MSDS REACH ROHS
Place of Origin :
Shenzhen zhuhai
MOQ :
500 pcs for single cell , 50pack for battery packs
Price :
USD 2.5 each pcs
Contact Supplier
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH
ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH

Guang Zhou Sunland New Energy Technology Co., Ltd.

Verified Supplier
14 Years
guangzhou
Since 2011
Business Type :
Manufacturer, Importer, Exporter
Main Products :
Portable Energy Storage System, Solar Energy Storage System, Battery Energy Storage System
Total Annual :
10 USD Million-15 USD Million
Employee Number :
1000~2000
Certification Level :
Verified Supplier
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