[FSE] E PROPULSIONS SYSTEMS - High performance Lithium battery list - small size cells

[francois]

Hello Mr Zdeněk Houf,

 

Please find some cells we also produce in small size with very high discharge capacity. 

These cells have an higher nominal voltage with 3.7V – 4.2V max and maintain the voltage higher than NCM, even under high discharge current.

The range XP with 35C continuous, 70C peak and the XT range with 55C continuous and 80C discharge.

Really the top one of the market. Very low impedance.

We charge in normal use 2C but many of our customers charge on 5C.

As very low internal resistance, can be discharged very high with low heat.

If you get small cells for your application you can do assembly in 2P, 3P or 4P depends on voltage you need at the end, so you will lower the Amp request on each cell and get an higher voltage means more watts for motor.

 

Please find the data on the cells we can supply in small size.

EPS3700XP, EPS4500XP, EPS5000XP for 35C continuous

EPS3700XT, EPS4400XT, EPS5000XT for 55C continuous.

 

 


EPS XP Series - 35C continuous discharge Lipo Batteries 

 


Part No. 

Capacity

Nominal voltage

Description

Max Charge

Max cont. discharge 

Max Burst discharge

(3 Sec)       

Max Charge Current

Max cont.

discharge 

Current

Max Burst  

Current   

(3 Sec)

Approx. dimension    

H x W x L (mm)

Approx. Weight (g)

Wh

Energy Density Wh/Kg

														
															

 


EPS3700XP-1S

3700mAh

3.7V

3700mAh - 1cell

2C

35C

70C

7.40A

129.5A

259.0A

7.5x43x129

93.5

13.69

146


 

 

 

 

 

 

 

 

 

 

 

 

 

 


EPS4500XP-1S

4500mAh

3.7V

4500mAh - 1cell

2C

35C

70C

9.0A

157.5A

315.0A

7.5x44x152

112.0

16.65

149


 

 

 

 

 

 

 

 

 

 

 

 

 

 


EPS5000XP-1S

5000mAh

3.7V

5000mAh - 1cell

2C

35C

70C

10.0A

175.0A

350.0A

8.5x45x152

125.0

18.5

148

 

 


EPS XT Series - 55C continuous discharge Lipo Batteries 

 


Part No. 

Capacity

Nominal voltage

Description

Max Charge

Max cont. discharge 

Max Burst discharge

(3 Sec)       

Max Charge Current

Max cont.

discharge 

Current

Max Burst  

Current   

(3 Sec)

Approx. dimension    

H x W x L (mm)

Approx. Weight (g)

Wh

Energy Density Wh/Kg

														
															

 


EPS3700XT-1S

3700 mAh

3.7V

3700mAh - 1cell

2C

55C

80C

7.40A

203.5A

296.0A

7.8x43x130

96.0

13.69

143


 

 

 

 

 

 

 

 

 

 

 

 

 

 


EPS4400XT-1S

4400 mAh

3.7V

4400mAh - 1cell

2C

55C

80C

8.80A

242.0A

352.0A

7.8x45x148

113.0

16.28

144


 

 

 

 

 

 

 

 

 

 

 

 

 

 


EPS5000XT-1S

5000 mAh

3.7V

5000mAh - 1cell

2C

55C

80C

10.0A

275.0A

400.0A

8.7x45x148

126.0

18.5

147

 

We can also supply you a new 20Ah cell size we start the production soon specially designed for formula 1 with very large pole tablet to support very high current use and we can propose you only the 15C continuous version, 30C peak.

Cells are pure cobalt.3.7V nominal – 4.2V max.

 


EPS XP Series – Large size 15C continuous discharge Lipo Batteries 

 


Part No. 

Capacity

Nominal voltage

Description

Max Charge

Max cont. discharge 

Max Burst discharge

(3 Sec)       

Max Charge Current

Max cont.

discharge 

Current

Max Burst  

Current   

(3 Sec)

Approx. dimension    

H x W x L (mm)

Approx. Weight (g)

Wh

Energy Density Wh/Kg

														
															

 


EPS-XP20C-1S

20Ah

3.7V

20000mAh - 1cell

2C

15C

30C

40.0A

300.0A

600.0A

9.0x160x220

557.0

74.0

133

 

 

We hope we will do some job together with your team for your 2013 car.

Have a nice day.

 

 

Meilleures Salutations

Best regards

François BRETHIOT

 

E Propulsion Systems LTD

Unit 01,8F, Fabrico Industrial Building,    

78-81, Kwai Cheong Road,

Kwai Chung, NT., Hong Kong

 

De : francois [mailto:francois na epropulsions.com] 
Envoyé : vendredi 7 septembre 2012 18:32
À : Zdeněk Houf - CTU CarTech Electric Czech republic
Objet : E PROPULSIONS SYSTEMS - High performance Lithium battery list

 

Hello Mr Zdeněk Houf,

 

I wish you a very good year for the design and race of your car for the next E Formula Student 2013 event.

There is so many parameters to get the winning choice from the body and structural parts, aerodynamics, but, the most important are the Motor, the Controller and a very good Batteries  set to be able to resist to the requested high discharge currents with highest voltage possible to get best performance of the car.

 

Our company, settled in Shenzhen area has a work force of nearly 600 persons with more than 20 high rank battery engineers.

We have an unique design, complete range and high performance discharge lithium batteries with a very low internal resistance, suiting a wide variety of applications for ground, flight or automotive systems.

We generally do OEM batteries for many European and US companies but have decided now to present our products under our own label E PROPULSION SYSTEMS.

 

We really appreciate you will choose our batteries for your car and are ready to help you by some special discount, especially for this event on a relationship win to win as you can advertise our name and logo on your car.

 

Please find the production list of our battery cells in big size for EV application. We think you can find the good cell size for your application.

We can help you in your choice of size, capacity, discharge ability, weight in regard of your requirement. 

Please give us more info on your request, cell types. Amp consumption, total voltage… to give you our opinion on your choice. What’s the best size you are looking for? Thanks for all your comments.

 

Please remember that’s the earlier you start, more the tests you can do and best results will you have.

We can supply you bare cells. Production delivery is generally 7/8 weeks.

Please find some typical technical data sheet on some cells. 

You want to order for testing some of our products to give you a better idea on the real performance of the cells? We are very confident in our products. You can do it. The results will be what’s mention on our data sheet.

Please don’t hesitate to contact us for any further requirements. 

See you soon. Have a nice day.

 

Best regards

François BRETHIOT

 

E Propulsion Systems LTD

Unit 01,8F, Fabrico Industrial Building,    

78-81, Kwai Cheong Road,

Kwai Chung, NT., Hong Kong

 

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