GSL ENERGY-GSL ENERGY Brand -GSL ENERGY-1

A Leader of Lithium Lifepo4 Battery in China Since 2006

jimdeng@gsl-energy.com

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GSL ENERGY Brand

GSL ENERGY Brand

Battery Type
21700 Battery
Brand
GSL ENERGY
Model No
GSL-ICR21700-4000mAh-3.7V
Battery combination
3.7V 4000mAh
Rated voltage
3.7V
Capacity
4000mAh
Size ( mm) / Size ( inch) L*W*H
21*70mm
Weight
65g
Application
EV,AGV, Robots, Solar UPS, Solar street led lights, golf carts, Marine UPS.
Package
UNCarton
Payment terms
T/T
Delivery time
With 15 days after deposit
Price
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Pieces
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Product Comparison
Lithium Ion Battery is reasonable in structure and exquisite in shape. It undergoes the tests of relevant departments and meets the national quality standards. Moreover, it is easy to assemble and disassemble.GSL ENERGY has a large-area production base. We equip the factory with complete production equipment. We could efficiently produce all kinds of Lithium Battery under the stringent monitoring and testing. They are safe, reliable, solid and durable.GSL ENERGY's Lithium Ion Battery is produced in strict accordance with standards. We make ensure that the products have more advantages over similar products in the following aspects.
  • GSL ENERGY-GSL ENERGY Brand -GSL ENERGY
    GSL ENERGY-GSL ENERGY Brand -GSL ENERGY-1
Company Advantages
1. is scientific in design, reasonable in structure and is easy to to install and disassemble. Moreover, the terminal protective cap is provided to reduce the damage rate of the terminal.
2. can be used for a long time by virtue of large capacity and low self-discharge rate. Moreover, the excellent recharge acceptance makes it recycling and eco-friendly.
3. Made from superior materials, has the advantages of large capacity, high power, low self-discharge rate, good temperature resistance, etc. It can not only support the equipment for a long time, but also can be recycled many times.
4. The development of GSL ENERGY can not be achieved without professional customer service. Our Li-Ion Battery achieves extreme use and longevity with GSL deep cycle technology

2019 New Best Bechargeable Battery 3.7V 4000mAh 21700 Battery For Tesla Powerwall

21700 battery (3).jpg

1. Application Scope

This product specification describes product performance indicators of Lithium-ion battery produced by SHENZHEN GSL TECH CO LTD.

2. Model

ICR21700-4000mAh-3.7V

3. Appearance and Dimension

21700 Lithium battery.jpg 

 

Item

Dimension (mm)

Diameter

21±0.1

Height(H)

70±0.4

 

4. Major Technical Parameters

No.

Item

Standard

Note

1

Standard Capacity

4000mAh

0.5C,(current value of 2200mA at 1C)

2

Capacity Range

3950~4250mAh

0.5C

3

Standard Voltage

3.7 V


4

Alternating Internal Resistance

≤60mΩ

with PTC

5

Charge Conditions

Cut-off Voltage

4.2±0.05V

constant current charge to 4.2V at 0.5C,

constant voltage charge to stop  until 0.01C mA

Cut-off Voltage

0.01C

6

Discharge Cut-off Voltage

2.75V


7

Cycle Characteristic

1000 times

100% DOD, the residual capacity is no less than 70% of rated capacity at 1C rate.

8

Max. Continuous Discharge Current

3C


9

Pulse Discharge Current

5C, 5s


10

Working Temperature

Charge:0°C~55°C

Discharge:-20°C~60°C


11

Storage Temperature

-20°C ~ 45°C


12

Battery Weight

65 g (Approx.)


 

5. Characteristics Curves

21700-4000-3.7V.png

 

 6.Safety Characteristics                                                                                                                                   

NO

Item

Test Method

Standard

                  1                         

Overcharge

After normal charge, test the batteries’ initial state and capacity. Charge to 10.0V at 3C, then charge at CV mode to 0.01C. Observe battery’s variation of appearance.

No explosion, No fire.

2

Over Discharge

After normal charge, test the batteries’ initial state. When the batteries are normal, Discharge to 0V at 0.5C. Observe battery’s variation of appearance.

No explosion, No fire.

3

External Short-circuit

After normal charge, test the batteries initial state, Keep the battery into explosion protection cover, short-circuit the positive and negative terminals directly (general resistance shall be less than or equal to 50mΩ). Stop the test when the temperature falls to 10℃ lower than the peak value. Observe the variation of the batteries’ appearance and temperature.

No explosion, No fire.

4

Thermal Abuse  

Test the batteries’ initial state and capacity. Standard charge. Put battery into oven, increase the temperature to 130±2℃ at rate of (5±2℃) /min, and keep it for 30min. Observe the variation of batteries’ appearance.

No explosion, No fire.

5

Drop

After normal charge, test the batteries’ initial state and capacity. Then let it fall from a height of 1m (the lowest height) to a smooth cement floor, twice.

No explosion, No fire.

6

Heavy Impact

A diameter of 15.8 mm steel rod is placed in the middle of the fully charged battery, then the weight of 10Kg hammer from 1.0m height free falls to the battery upper.

No explosion, No fire.

7

Extrusion Test

Place the battery in between the pressing surface of extrusion apparatus, parallel the axes of cylindrical battery to the pressing surface, and gradually increase pressure up to 13KN, keeping the pressure for 1min.

No explosion, No fire.

 

 

 

21700 battery.jpg

 

 

 

21700 battery cell.jpg

  

 

SAFETY

Passed the below abuse and safety test-short-circuit, dropping, nail penetration, impact, crush, thermal shock, over-charge,over-discharge: no fire, no explosion with stable chemical structure.


lithium ion battery.jpg

 

 


APPLICATIONS


 

lithium battery 12v.jpg

 


1.Energy Storage
   --Solar-Wind Power System / City Grid (On/Off) / Community and Family
2.Back-up System and UPS
   --Telcom Base / CATV system / Computer Server Center / Medical Instrumnt / Military Equipment 
3.Other Applications
   --Security and Electronics / Mobile POS, Mining Lihgt / Torch / LED Light / Emergency Light 
   --RV Motorhome /Golf Carts Battery / Boat Marine Yachts / Electric Skateboard
   --LED Backup / Engine Starting Battery,etc.

 

 


WHY CHOOSE US ? 

1.Experience--More than 12 years Specialized in lithium battery, Gold Supplier on Alibaba. 
2.Certification--CE,UL,MSDS,Test Report from National Center For Quality Supervision and Inspection of Battery Products approved.
3. Quality Control-- 37 production process,7 steps quality check to promise stable quality and high reliability for you.
4. Best Material-- Insist on choosing top quality cell, material and accessories,lithium battery last longer time.
5. Fresh battery-- All battery is fresh Production.

 

lithium ion battery .jpg

 


 

Company Information

KS ENERGY is focused on manufacturing, R&D and sales for safe Lithium battery and solutions. With the registration and certification of CE, SGS, ROHS.  Striving to grow into a global leading lithium battery supplier, KS ENERGY has been working hard on researching and developing new process technology to make our lithium battery more affordable and able to meet the rapidly growing market demands.

As a sub-factory of GSL GROUP, KS ENERGY is specializes in clean and new energy on lithium ion battery products. 

 

lithium battery supplier.jpg

 

 

Welcome To Visit Our Factory

 

factory

 

 

Through years development and experienced international sales team in Shenzhen, KS ENERGY green solar and lithium battery products have been sold to clients all over the world.

 

Lithium battery Exhibition.jpg

 

 

Since 2006, KS ENERGY has maintained a corporate philosophy that is characterized by entrepreneurship, innovation, competition and transcendence. Today KS has established a solid foundation in two major industries: photovoltaic and Lithium, with its four production bases in Shangdong, Zhejiang, Sichuan, Guangdong. 

 

Lithium battery factory.jpg

 


Our Services

KS ENERGY partners with customers to provide complete energy storage solutions that enable the rapid development and delivery of innovative products that meet demand in both existing and emerging markets.

--Professional pack module design on cylindrical and Prismatic design.

--Fast Production and Delivery time.

 

Packaging & Shipping

lifepo4 battery 12 100ah.jpg

 



Company Features
1. GSL GROUP Limited is one of the largest exporter and manufacturer in the field of .
2. GSL GROUP Limited owns production and processing base mainly for the completed project.
3. GSL ENERGY will continue to introduce high quality . Get info!
Product Message

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