Product Details
Product Specification: Rechargeable Lithium Ion Battery
Model: 18650-3 2600mAh/3.7V
1. Scope
This Specification Describes The Type and Size, Performance, Technical Characteristics, Warning and Caution of The Lithium Ion Rechargeable Cell. The Specification Only Applies to 18650-3 ( 2600mah ) Cell Supplied by Xinghai Energy Technology Co., Ltd.
2. DefInition
2.1 Rated Capacity:
Rated Capacity =2600mah, The Capacity ObtaIned When a Cell is Discharged at 5-Hour
Rate To Voltage 2.75v at 25±2.5℃.
2.2 Standard Charge Method:
At 25±2.5℃, Charged to 4.20v at a Constant Current of 0.5c, and Then, Charged With
Constant Voltage of 4.20v Until The Charged Current Drops BeLow 0.01c.
2.3 Standard DisCharge Method:
At 25±2.5℃, Discharged to 2.75 V at a Constant Current of 1c.
3. Cell Type, Bar Code, Appearances, and Dimensions
3.1 Cell Type
HW 18650-3 2.6Ah
3.2 Cell Dimensions：
4. Cell Specification ( Fresh Cell Tested at 25±2.5℃, Using Standard Charge and Discharge Unless Otherwise Specified )
ITEM |
SPECIFICATION |
NomInal Capacity |
2.6Ah@0.2C |
MInimum Capacity |
2.55Ah@0.2C |
NomInal Voltage |
3.70v |
Charge Ending Voltage |
4.2±0.05v |
Discharge Ending Voltage |
2.75±0.05v |
Charge Current |
Standard Charge: 0.5C
Max Charge: 1C When T≥10℃
Max Charge: 0.2C When 10℃≥T≥0℃
Max Charge: 0.1C When 0℃≥T≥-10℃
|
Discharge Current |
Standard Discharge: 1C
Max ContInously Discharge: 3C
Max Instant (30s) Discharge: 5C
|
|
Recommended Charge and Discharge
Cell Surface Temperature
|
Charge: 0～45℃
Discharge: -20～60℃
|
|
Maximum AlLowable Charge and Discharge Cell Surface
Temperature. Charging and Discharging at These
Conditions Willshorten Cell Cycle Life.
|
Charge: 60℃
Discharge: 75℃ |
Humidity Range |
0～90%RH ( Noncondensing ) |
Internal Resistance |
≤60mOhm ( AC Impedance, 1000hz ) |
Cell Dimension |
Height: 65.5mm Max
Diameter: 18.5mm Max
|
Weight |
46±2g |
5. Technical Characteristics
5.1 Electronic Performance ( Fresh Cell Tested at 25±2.5℃, Standard Charge and Discharge Unless Otherwise Specified )
NO. |
ITEM |
CRITERION |
|
5.1.1 |
Discharge
Rate
Capability
|
Discharge Capacity at 1C
Discharge Capacity at 0.5C
|
≥97% |
|
Discharge Capacity at 3C
Discharge Capacity at 0.5C
|
≥92%
|
5.1.2 |
Cycle Life |
Discharge Capacity of 500th cycle
OrigInal Discharge Capacity
|
≥80% |
5.1.3 |
High-Low
Temperature
Discharge
Performance ( 0.5C Discharge )
|
Discharge Capacity at -10℃
Discharge Capacity at 25℃
|
≥70% |
|
Discharge Capacity at 0℃
Discharge Capacity at 25℃
|
≥85%
|
|
Discharge Capacity at 60℃
Discharge Capacity at 25℃
|
≥98%
|
5.1.4 |
Storage
Performance
|
Residual Capacity After 28d Storage
OrigInal Discharge Capacity
|
≥97% |
|
Recover Capacity After 28d Storage
OrigInal Discharge Capacity
|
≥99%
|
5.2 Environmental and Safety Characteristics
ITEM |
TEST METHOD |
CRITERION |
5.2.1 Over Discharge |
Under the Battery Discharge to the cut-Off Voltage, Then Discharge With 0.1C,until the Voltage of Battery is Zero. |
No Explosion, No Fire, No Leakage |
5.2.2 Over Charge |
After The Battery Fully Charge, Overcharge With 0.5c for One Hour. |
No Explosion, No Fire, No Leakage |
5.2.3 Reverse Charge |
After The Battery Fully Charge, With 1/6c Reverse Current Constant Current Charging for 8h. |
No Explosion, No Fire, No Leakage |
5.2.4 130℃ High Temperature |
After The Battery Is Fully Charged, The Battery Is Placed In The Oven for 3℃ ~ 7℃ / MIn Heating Rate, The Temperature rose to 130℃ After The Start Time, and ( 130 ± 2 )℃ Temperature Range of Security WithIn 1h. |
No Explosion, No Fire, No Leakage |
5.2.5 High and Low Temperature Impact |
When The Battery Is Fully Charged, Shelved at -40℃ for 1h, Then Shelved 1h At 85℃, Do Such Cycle for 32 Times, Then Remove Under Room Temperature for 6h. |
No Explosion, No Fire, No Leakage |
5.2.6 Vibration |
When The Battery Is Fully Charged，Put The Battery on The Vibration Table of Amplitude 2mm, Frequency 10hz-30hz for One Hour. |
No Explosion, No Fire, No Leakage, No Deformation. |
5.2.7 Free Fall Drop |
After The Battery Fully Charge, Let The Battery Fall From a Height of 1.0m To The Hard Wood With Thickness of 20mm, Each Surface for Once. |
No Explosion, No Fire, No Leakage |
5.2.1 Soaking |
After The Battery Fully Charged, The Battery Was SInked at Room Temperature, Depth Will Be Subject to Immersion Cell Surface WithIn 24h, Then Take Out Under Room Temperature for 6h. |
No Explosion, No Fire, No Leakage |
5.2.8 Extrusion |
After The Battery is Fully Charged, The Battery Surface With Special Equipment Was Squeezed Until The Batteries Dimensions Changed to 1 ~ 3mm. |
No Explosion, No Fire |
5.2.9 Short Circuit |
When The Battery Is Fully Charged, With The Internal Resistance of Not More Than 50mΩ Wires Connecting to The Battery Positive and Negative Extremes for 1h. |
No Explosion, No Fire, No Leakage |
5.2.10 Constant Temperature/Humidity/Heat |
After The Battery Fully Charged The In The Relative Humidity of 90% ~ 95% of The Constant Temperature and Humidity Box, Duration of 48h, Then Take Out Under Room Temperature for 6h. |
No Explosion, No Fire, No Leakage |
6. Warning In Handling The Lithium-Ion Cell
To Prevent The Possibility or The Cell From Leaking, Heating, Explosion, Please Observe The FolLowing
Precautions:
Don't Immerse The Cell In Water;
Don't Use and Leave The Cell Near a Heat Source Such as Fire or Heater;
When Charging, Use a Cell Charger Specifically for That Purpose;
Don't Reverse The Positive and Negative TermInals;
Don't Discard The Cell In Fire or Heater;
Don't Connect The Cell to an Electrical Outlet Directly;
Don't Discard The Cell In Fire or Heater;
Don't Connect The Positive and Negative TermInal Directly With Metal Objects;
Don't TransPort and Store The Cell Together With Metal Objects Such as Necklaces, HairpIns;
Don't Directly Solder The Cell;
Don't Pierce The Cell With a Nail or Other Sharp Object.
7. Shipping
The Capacity of Delivery Battery is Approximately at 50% of Charging. During TransPortation, Keep The Battery From Acutely Vibration, Impacting, Polarization, Drenching.
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