• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: GEB/OEM
  • Model Number: 75190S
  • Type: 2000cycles 50ah 3.2v Lifepo4 Cylinder Battery Cell
  • Nominal Voltage: 3.2V
  • Size: 75*190mm
  • Nominal Capacity: 50Ah
  • Voltage: 3.2v
  • Capacity: 50Ah
  • Material: 12months
  • Continuous discharge current: 2C(100A)
  • Burst discharger current: 10C(500A)
  • Cycle life: 2000 Times
  • Weight: 1.85Kg
  • Resistance: 1.85Kg
  • Certificate: CE/RoHS/UN38.3/MSDS

Packaging & Delivery

Packaging Details Standard export package
Delivery Time 10-15 working days after receiving payment

 

 

 

Item

 

Parameters

 

Remark

Rated Capacity

Typical

50Ah

standard discharge(0.2C)

after standard charge

Minimum

50.5Ah

Alternating 

Internal Resistance

≤1mΩ

 
Dimension 75*190mm 
Warranty12 months 
Application  electric vehicles electric vehicles
Nominal Voltage3.2V  mean operation voltage

Voltage at end of Discharge

2.0V

discharge cut-off voltage

Charging at end of Voltage

3.7V

 

Standard Charge

Constant Current 0.3C Constant 

Voltage 3.7V 0.02C cut-off

charge time:Approx 4.5h

Standard Discharge

Constant Current 2C end Voltage 2.0V

 

Fast Charge

Constant Current 0.5C Constant 

Voltage 3.7V 0.02C cut-off

charge time:Approx 1h

Fast Discharge

Constant Current 2C end Voltage 2.0V

 

Cycle Characteristic

2000times(100%DOD)

4000 times(80%DOD)

7000 times(50%DOD)

the residual capacity is no less 

than 80% of rated capacity at 3C rate.

Maximum Continuous

 Discharge Current

2C

pulse discharge current: 10C

Operation Temperature Range

Charge:0~50℃

Discharge:-20~75℃

60±25%R.H. bare battery

Storage Temperature Range

Less than 1 year:-20~20℃

Less than 3 months:-20~60℃

60±25%R.H. at the shipment 

 

 

Features&Application

 

 

 

 

 

Key Features

1.Lighter weight, smaller size 

2.High temperature performance

3.Extremely safe, no explosion, no fire under collision

4.Strong over-discharge resistance and charge retention

5.Strong charging acceptance and quick-charging capability  6.Maintenance-free and no acid or water for maintenance in usage

7.Large capability and long life for all high power output applications

8.Environmentally friendly non-toxic, non-contaminating, no rare metal.

9.Low self-discharge and good discharge performance at low temperature  10.Excellent large current discharge performance especially in startup and climbing

 

Main Applications

(1)Power electric vehicles: electric bike, bicycle, scooter, motor, car

(2)Portable Devices: GPS,PDA, laptop, notebook

(3)Video Devices: LED flashlight, cordless phone ,camera, safety alarm

(4)Others: electric meter water Instrument, backup power

 

 

Related Products     We participate in a variety of trade fairs twice every year .On Electronics Show we discuss with customers 

about our products and help them solve questions face to face.We have established contacts with many 

potential buyers from other places as America, Australia, Belgium, Israel,Germany, the Netherlands, 

Canada etc.

 

 

FAQ

 

 1. Q: What is minimal rated capacity?

 A: minimal rated capacity is the capacity on 0.2 C discharge till the voltage tapered to 2.0V shall be measured  after rested for 30min then finish standard charge.

 

 2. Q: What is internal impedance?

 A: Internal impedance is measured at AC 1KHz after 50% charge.

 

 3. Q: What is standard charge?

 A: Charging shall consist of charging at a 0.2 C constant current rate until the cell reaches 4.20V. The cell shall then be charged at constant voltage 0f 4.20 volts while tapering the charge current Charging shall be terminat  ed when the charging current has tapered to 0.02 C. Charge time:Approx 6.0h,The cell shall demonstrate no permanent degradation when charged between 0℃ and 45℃

 

 4. Q: What is standard discharge?

 A: Batteries shall be discharged at a constant current of 0.2 C to 3.0 volts @20℃±5℃.  If no otherwise specified, the rest time between Charge and Discharge amount to 30min.

 

 5. Q: What is overcharge?

 A: 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.

 

 6. Q:What is over discharge?

 A: 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.

 

 7. Q: What is external short-circuit?

,A: 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). Sto  p the test when the temperature falls to 10℃ lower than the peak value. Observe the variation of the batteries’  appearance and temperature.

 

8.Q:How are chargers selected?
A:Selecting principles of chargers is as below:
(1)Voltage should be regulated by the safest voltage of chargeable cell * n (make the Lithium iron phosphate    as 3.6 V and Ni- Co- Mn as 4.2 V);
(2)Current should be limited by the safe current of chargeable cell, and the customers’specific requirements also should be considered.
(3)If above 120W,chargers with aluminum alloy cooling fin or cooling fan will be suggested.
(4)If under 60W,chargers with plastic shell will be suggested.

 

Contact Right Now!

 

 

 

We offer varies of polymer lithium battery cells and packs according to your requirements. Warmly welcome your inquiry.

 

 

Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview

Transactions

Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
Trade Assurance
China (Mainland)
Transaction Level:
Supplier Assessments:
23 Transactions 110,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $70,000
Learn More