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Spec. No.
SAMSUNG SDI Confidential Proprietary
INR18650-35E Version No. Ver. 1.1
SPECIFICATION OF PRODUCT
for Lithium-ion rechargeable cell
Model name : INR18650-35E
July, 9th, 2015
Samsung SDI Co., Ltd.
Cell Business Division

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Spec. No.
SAMSUNG SDI Confidential Proprietary
INR18650-35E Version No. Ver. 1.1
Revision history
Revision
No.
Ver. 1.0
Ver. 1.1
Date(‘yr-m-d)
‘15-03-10
‘15-07-09
Page
19
19
Item
Description
Ver. 1.0
Cycle life condition change
Changes
/ Author
Yunwoong Kim
Yunwoong Kim
1 Samsung SDI., Battery Business Division.

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Spec. No.
SAMSUNG SDI Confidential Proprietary
INR18650-35E Version No. Ver. 1.1
1. 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. Description and Model
2.1 Description
Cell (lithium-ion rechargeable cell)
2.2 Model
INR18650-35E
2.3 Site
Manufactured in Korea
3. Nominal Specifications
Item
3.1 Standard discharge Capacity
3.2 Charging Voltage
3.3 Nominal Voltage
3.4 Charging Method
3.5 Charging Current
3.6 Charging Time
3.7 Max. Charge Current
3.8 Max. Discharge Current
3.9 Discharge Cut-off Voltage
Specification
Min 3,350mAh
- Charge : 0.5C(1,700mA), 4.2V, 0.02C(68mA) cut-off @RT
- Discharge : 0.2C(680mA), 2.65V cut-off @RT
*1C=3,400mA
4.2V
3.60V
CC-CV
(constant voltage with limited current)
Standard charge: 1,700mA
For cycle life : 1,020mA
Standard charge: 4hours
2,000mA (not for cycle life)
8,000mA (for continuous discharge)
13,000mA (not for continuous discharge)
2.65V
3.10 Cell Weight
50 g max
3.11 Cell Dimension
3.12 Operating Temperature
(Cell Surface Temperature)
3.13 Storage Temperature
Height : Max. 65.25 mm
Diameter: Max. Φ 18.55 mm
Charge : 0 to 45°C
Discharge : -10 to 60°C
1 year : -20~25°C (1*)
3 months : -20~45°C (1*)
1 month : -20~60°C (1*)
Note (1): If the cell is kept as ex-factory status (30% of charge),
The capacity recovery rate is more than 80%.
2 Samsung SDI., Battery Business Division.

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Spec. No.
SAMSUNG SDI Confidential Proprietary
INR18650-35E Version No. Ver. 1.1
4. Outline Dimensions
See the Fig. 1
Max. 18.55
Max. 65.25
Unit : mm
Fig. 1 Outline Dimensions of INR18650-35E
3 Samsung SDI., Battery Business Division.

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Spec. No.
SAMSUNG SDI Confidential Proprietary
INR18650-35E Version No. Ver. 1.1
5. Appearance
There shall be no such defects as scratch, rust, discoloration, leakage which
may adversely affect commercial value of the cell.
6. Standard Test Conditions
6.1 Environmental Conditions
Unless otherwise specified, all tests stated in this specification are
conducted at temperature 23±3°C and humidity 65%.
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. Characteristics
7.1 Standard Charge
This "Standard Charge" means charging the cell with charge current of
1,700mA and constant voltage 4.2V at 23°C, 0.02C(68mA) cut-off.
7.2 Standard Discharge Capacity
The standard discharge capacity is the initial discharge capacity of the cell, which is
measured with discharge current of 0.2C(680mA) with 2.65V cut-off at 23°C
within 1 hour after the Standard charge.
Standard Discharge Capacity 3,350mAh
7.3 Rated Discharge Capacity
The rated discharge capacity is the initial discharge capacity of the cell, which is
measured with discharge current of 1C(3,400mA) with 2.65V cut-off at 23°C
within 1 hour after the Standard charge.
Rated Discharge Capacity 3,250mAh (97% of 3,350mAh)
7.4 Initial internal impedance
Initial internal impedance measured at AC 1kHz after Standard charge.
Initial internal impedance 35m
4 Samsung SDI., Battery Business Division.