OEM 18650 10c High Rate Discharge 2500mAh Rechargeable Lithium Ion Battery with PCB 2500 mAh 3.7V Cell for Home Appliance Lithium Battery China Factory

• Type: Lithium Battery
• Charger Type: Electric Charger
• Charger Application: Standard Battery
• Nominal Voltage: 3.7V
• Charger Style: Simple Charger
• Compatible Battery Type: 18650
• Model NO.: TL-3.7v
• Size: Prismatic
• Certification: KC, RoHS, TUV, CB, UL, CE
• Socket Type: For E.U.
• Recyclable: Non-Recyclable
• Mbs: Yes
• Transport Package: Paper Box with PE Bag
• Specification: 1.6kgs
• Trademark: TL
• Origin: Shenzhen, China
• HS Code: 8506500000
• Production Capacity: 5000

Product Description

Product Description

OEM 18650 10C high rate discharge 2500mAh Rechargeable Lithium ion Battery  with PCB 2500 mah 3.7v Cell for Home Appliance

General Performance

 

Item	Test Methods and Condition	Criteria
0.2C  Capacity	After standard charging, rest battery for 10mins, then discharge at 0.2C to voltage 3.0V, recording the discharging time	>=300min
Cycle life	Constant current 1C charge to 4.2V,  then constant voltage charge to current declines to 0.01C, rest 10 minutes. Constant current 10C discharge to 3.0V, rest 10 minutes. Repeat above steps till continuously discharging capacity higher than 80% of the initial capacity of the cell.	>=300times
Capability of keeping electricity	20±5ºC, after standard charging, rest the batteries 28days, discharging at 0.2C to voltage 3.0V, recording the discharging time.	>=240min

Safe Characteristics

 

Item	Test Methods and Condition	Criteria
Over charge testing	At 20±5ºC, charging cells with constant current 2.0C to voltage 5.0V. Stop test till cell temperature 10ºC lower than max temperature.	No fire or explosion
Over discharge testing	At 20±5ºC, according to the requirements of the standard charge, the cell will be discharge to cutoff voltage, then the cell is subjected to a forced discharge at constant current 1C, to 4.2V. The total duration for the forced discharge testing is 90min.	No fire or explosion
Short circuit testing	At 55±5ºC, after standard charging, connect cells anode and cathode by wire of which impedance less than 80±20mΩ. The cell remains on test for 24 hours or until the surface temperature declines by 20% of the max temperature rise.	No fire or explosion

Environmental Performance

 

Item	Test Methods and Condition	Criteria
Discharge at high temperature	After standard charging, rest the cells 4h at 60±2ºC, then discharging at 1C to voltage 3.0V, recording the discharging time.	>=54min
Discharge at low temperature	After standard charging, rest the cells 16h at -20±2ºC, then discharging at 0.2C to voltage 3.0V, recording the discharging time.	>=210min
Thermal Shock	Put the cells in the oven. The temperature is to be raised at 5±2ºC per minute to a temperature of 130±2ºC, and remains 30 minutes.	No fire or explosion

Detailed Photos

 

Li-ion 18650 2500mah features

Typical Capacity: 2500mah
Norminal Voltage: 3.7v
voltage of discharge: 2.75v Charge
voltage: 4.2v±0.05v
Standard charging current: 0.5C
Fast charging current: 1C, can be up to 2-3C Standard discharging current: 0.5C Max
Continuous Discharging Current: 10C
Max Instant Discharging Current: 15C(≤200ms)
Working temperature: charge: 0ºC ≤ T ≤ 45ºC
discharge: -20ºC ≤ T ≤ 60ºC
Storage Temperature: -20~60ºC,1 month -20~45ºC, 6 months -20~25ºC, 12 months

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