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-SAMSUNG SDI Confidential Proprietary –
Spec. No. INR18650-20R Version No. 1.2
In-Young Jang
SPECIFICATION OF PRODUCT
Lithium-ion rechargeable cell for power tools
Model name : INR18650-20R
Dec., 2011
Samsung SDI Co., Ltd.
Energy Business Division
http://www.Datasheet4U.com

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-SAMSUNG SDI Confidential Proprietary –
Spec. No. INR18650-20R Version No. 1.2
In-Young Jang
Contents
1.0. Scope
2.0. Description and model name
2.1. Description
2.2. Model name
3.0. Nominal specification
4.0. Outline dimensions
5.0. Appearance
6.0. Standard test conditions
6.1. Environmental conditions
6.2. Measuring equipments
7.0. Characteristics
7.1. Standard charge
7.2. Rapid charge
7.3 Nominal discharge capacity
7.4. Standard rated discharge capacity
7.4. Initial internal impedance
7.5. Temperature dependence of discharge capacity
7.6. Temperature dependence of charge capacity
7.7. Charge rate capabilities
7.8. Discharge rate capabilities
7.9. Cycle life
7.10. Storage characteristics
7.11. Status of the cell as of ex-factory
8.0. Mechanical Characteristics
8.1. Drop test
8.2. Vibration test
9.0. Safety
9.1 Overcharge test
9.2 External short-circuit test
9.3 Reverse charge test
9.4 Heating test
10.0. Warranty
11.0. Others
11.1 Storage for a long time
11.2 Others
12.0. Packing
Proper use and handling of lithium ion cells
Handling precaution and prohibitions of lithium Ion rechargeable cells and batteries
Samsung SDI emergency contact information
Additional remarks
Revision history
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-SAMSUNG SDI Confidential Proprietary –
Spec. No. INR18650-20R Version No. 1.2
In-Young Jang
1.0. Scope
This product specification has been prepared to specify the rechargeable lithium-ion cell
('cell') to be supplied to the customer by Samsung SDI Co., Ltd.
2.0. Description and model
2.1 Description
lithium-ion rechargeable cell
2.2 Model name
INR18650-20R
3.0. Nominal specifications
Item
Specification
3.1 Nominal discharge capacity
2,000mAh
Charge: 1A, 4.20V,CCCV 100mA cut-off,
Discharge: 0.2C, 2.5V discharge cut-off
3.2 Nominal voltage
3.6V
3.3 Standard charge
CCCV, 1A, 4.20 ± 0.05 V, 100mA cut-off
3.4 Rapid charge
CCCV, 4A, 4.20 ± 0.05 V, 100mA cut-off
3.6 Charging time
3.7 Max. continuous discharge
(Continuous)
3.8 Discharge cut-off voltage
End of discharge
Standard charge : 180min / 100mA cut-off
Rapid charge: 50min (at 25) / 100mA cut-off
22A(at 25), 60% at 250 cycle
2.5V
3.9 Cell weight
45.0g max
3.10 Cell dimension
3.11 Operating temperature
(surface temperature)
3.12 Storage temperature
(Recovery 90% after storage)
Height : 64.85 ± 0.15mm
Diameter : 18.33 ± 0.07mm
Charge : 0 to 50
(recommended recharge release < 45)
Discharge: -20 to 75
(recommended re-discharge release < 60)
1.5 year
3 months
1 month
-30~25(1*)
-30~45(1*)
-30~60(1*)
Note (1): If the cell is kept as ex-factory status (50±5% SOC, 25),
the capacity recovery rate is more than 90% of 10A discharge capacity
100% is1,950mAh at 25with SOC 100% after formation.
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-SAMSUNG SDI Confidential Proprietary –
Spec. No. INR18650-20R Version No. 1.2
In-Young Jang
4.0 Outline dimensions
See the attachment (Fig. 1)
5.0. Appearance
There shall be no such defects as scratch, rust, discoloration, leakage which
may adversely affect commercial value of the cell.
6.0. Standard test conditions
6.1 Environmental conditions
Unless otherwise specified, all tests stated in this specification are conducted at
temperature 25±5and humidity 65±20%.
6.2 Measuring equipment
(1) Amp-meter and volt-meter
The amp-meter and volt-meter should have an accuracy of the grade 0.5mA and
mV or higher.
(2) Slide caliper
The slide caliper should have 0.01 mm scale.
(3) Impedance meter
The impedance meter with AC 1kHz should be used.
7.0. Characteristics
7.1 Standard charge
This "Standard charge" means charging the cell CCCV with charge current 0.5CmA
(1,000mA), constant voltage 4.2V and 100mA cut-off in CV mode at 25for capacity. .
7.2 Rapid charge
Rapid charge means charging the cell CCCV with charge current 4A and 100mA cut-off
at 25
7.3 Nominal discharge capacity
The standard discharge capacity is the initial discharge capacity of the cell, which is
measured with discharge current of 400mA(0.2C) with 2.5V cut-off at 25within 1hour
after the standard charge.
Nominal discharge capacity 2,000mAh
Which complying to the minimum capacity of IEC61960 standard.
7.4 Standard rated discharge capacity
The standard rated discharge is the discharge capacity of the cell, which is measured
with discharge current of 10A with 2.5V cut-off at 25within 1hour after the standard
charge.
Standard rated discharge capacity 1,950mAh
7.5 Initial internal impedance
Initial internal impedance measured at AC 1kHz after standard charge
Initial internal impedance 18m
7.6 Temperature dependence of discharge capacity
Capacity comparison at each temperature, measured with discharge
constant current 10A and 2.5V cut-off after the standard charge is
as follows.
Discharge temperature
-20
-10
0
25
60
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-SAMSUNG SDI Confidential Proprietary –
Spec. No. INR18650-20R Version No. 1.2
In-Young Jang
60%
75%
80%
100%
100%
Note: If charge temperature and discharge temperature is not the same,
the interval for temperature change is 3 hours.
Percentage index of the discharge at 25at 10A (=1,950mAh) is 100%.
7.7 Temperature dependence of charge capacity
Capacity comparison at each temperature, measured with discharge constant current
10A and 2.5V cut-off after the standard charge is as follows.
Charge temperature
Discharge temperature
05254550
Relative capacity 80% 90% 100% 95% 95%
25
Note: If charge temperature and discharge temperature is not the same,
the interval for temperature change is 3 hours.
Percentage index of the discharge at 25at 10A (=1,950mAh) is 100%.
7.8 Charge rate capabilities
Discharge capacity is measured with constant current 10A and 2.5V cut-off
after the cell is charged with 4.2V as follows.
Current
Charge condition
Standard 1A
Maximum rapid charge 4A
Cut-off
100mA
100mA
Relative
Capacity
100%
98%
Note: Percentage index of the discharge at 25at 10A (=1,950mAh) is 100%.
7.9 Discharge rate capabilities
Discharge capacity is measured with the various currents in under table and 2.5V
cut-off after the standard charge.
Discharge condition
Current
0.40A
4A
10A 18A 20A
Relative
Capacity
100%
97%
100%
97%
95%
Percentage index of the discharge at 25at 10A (=1,950mAh) is 100%.
7.10 Cycle life
With standard charge and maximum continuous discharge.
Capacity after 250cycles,
Capacity 1,200mAh (60% of the nominal capacity at 25)
7.11 Storage characteristics
Standard rated discharge capacity after storage for 1 month at 60from the standard
charged state is 90% of the initial 10A discharge capacity at 25
7.12 Status of the cell as of ex-factory
The cell should be shipped in 50 ± 5% charged state. In this case, OCV is from 3.600V
to 3.690V.
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