21700 Battery

This ELB 21700 Battery are design with 21700 standard size, specially used for electric car, power tools,electric bicycle, etc.

NiCoMn ternary material. minimum weight but highest energy density.

Description

There are two model in ELB company- 4800mAh 15A 21700 battery and 5000mah 10A 21700 battery. Both of  them are design with NCM chemistry to support power application.

 

The Main features of ELB 21700 batteries:

 

  • 4800mah 3C and 5000mah 2C optional.

 

  • Proven operating wide temperature: -20℃~60℃.

 

  • Standard 21700 Size(D21*H70mm).

 

  • 800tims cycle life@80%DOD.

 

  • High quality NCM chemistry, which have light weight and large energy density.

 

 

The Certification that ELB Got:
ELB Battery certification
ELB Battery certification

 

Check details in ELB certification center.

 

21700 4800mAh 3C

Main technical parameter of the ELB 4800mAh 3C 21700 batteries:

 

NO. Item Standard
1 Standard Capacity 4800mAh
2 Minimum Capacity 4750mAh
3 Standard Voltage 3.6 V
4 Dimension D21*H70mm
 

5

 

Charge Conditions

Cut-off Voltage 4.2±0.05V
Cut-off Current 0.01C
6 Max. Charging Current 2250mA
7 Discharge Cut-off Voltage 2.75V
8 Standard Discharge Current 4800mA
 

 

 

9

 

 

 

Fast Discharge Current

 

 

 

4800mA

10 Max. Continuous Discharge Current 13500mA
11 Pulse Discharge Current 20000mA,5s
 

12

 

Cycle Characteristic

500 times(100%DOD)
800 times(80%DOD)
1000 times(50%DOD)

 

13 Working Temperature Charge:0℃~45℃
Discharge:-20℃~60℃
14 Storage Temperature -20℃~60℃
15 Cell Weight Approx 72g

21700 5000mAh 2C

Main technical parameter of the ELB 5000mAh 2C 21700 batteries:

 

NO. Item Standard
1 Standard Capacity 5000mAh
2 Minimum Capacity 4950mAh
3 Standard Voltage 3.6 V
4 Dimension D21*H70mm
 

5

 

Charge Conditions

Cut-off Voltage 4.2±0.05V
Cut-off Current 0.01C
6 Max. Charging Current 2500mA
7 Discharge Cut-off Voltage 2.75V
8 Standard Discharge Current 5000mA
 

 

 

9

 

 

 

Fast Discharge Current

 

 

 

5000mA

10 Max. Continuous Discharge Current 10000mA
11 Pulse Discharge Current 20000mA,5s
 

12

 

Cycle Characteristic

500 times(100%DOD)
800 times(80%DOD)
1000 times(50%DOD)

 

13 Working Temperature Charge:0℃~45℃
Discharge:-20℃~60℃
14 Storage Temperature -20℃~60℃
15 Cell Weight Approx 80g

FAQs

Q1. Can I have a sample order about ELB 21700 battery?
A. Yes, we welcome sample order to test and check quality.

Q2. What about the lead time?
A. Sample needs 5-10 days, mass production time needs 3-5 weeks, it depends on order quantity.

Q3. Do you have any MOQ limit the ELB 21700 battery?
A. Yes, we have MOQ for mass production, it depends on the different part numbers. 1~10pcs sample order is available. Low MOQ, 1pc for sample checking is available.

Q4. How do you ship the ELB 21700 battery and how long does it take to arrive?
A. We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping is also optional.

Q5. How to proceed with an order about ELB 21700 battery?
A. Firstly let us know your requirements or application. Secondly, We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places a deposit for formal order. Fourthly We arrange the production.

Q6. Is it OK to print my logo on the product?
A. Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q7. How about cycles life of your battery?
All of batteries are 800 cycles life beyond 80% DOD.

 

Battery knowledge:

How does lithium battery work?

How to extend lithium battery life?

How to connect batteries in series vs parallel?

Lithium Battery Charging: The Definitive Guide

Battery C Rating Explanation And Calculation

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