3.6V-3150mAh-Samsung-INR18650-33G

Samsung INR18650-33G

The Sansung INR-18650-33G battery comes up with a nominal capacity of 3150mAh, the voltage of 3.6V. It is an absolutely excellent cell for anyone seeking high performance 18650 cells.

HIGHLIGHTS OF INR18650-33G

Nominal Capacity: 3150mAh
Nominal Voltage: 3.6V
Max. Discharge Current: 9750mA(not for continuous discharge)

APPEARANCE

There shall be no such defects as deep scratch, crack, rust, discoloration or leakage, which may adversely affect the commercial value of the cell.
Diameter :max.18.33+/-0.07mm

Diameter is defined as the largest data value measured on the “A” area of a cylindrical cell.

Height : max.65.05+/-0.15mm

Weight: max.47.0g

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Nominal Specification of INR18650-33G

Item	Specification
Typical Capacity	3,150mAh (0.2C, 2.5V discharge)
Minimum Capacity	3,000mAh (0.2C, 2.5V discharge)
Charging Voltage	4.20V
Nominal Voltage	3.60V (0.2C discharge)
Charging Method	CC-cV(constant voltage with limited current)
Charging Current	Standard charge: 975mA
Charging Time	Standard charge: 5hours
Max. Charge Current	3,250mA (not for cycle life)
Max. Discharge Current	6,500mAh (continuous discharge)
Max. Discharge Current	9,750mAh (not for continuous discharge)
Discharge Cut-off Voltage	2.5V
Cell Weight (max. (g))	48g max
Cell Dimension	Diameter(max.) : Φ 18.40 mm
Cell Dimension	Height : 65.2mm max
Operating Temperature(Cell Surface Temperature)	Charge:0 to 45°C
Operating Temperature(Cell Surface Temperature)	Discharge:-20 to 60°℃
Storage Temperature	1 year : -20~25°C
	3 months : -20~45°C
	1 month : -20~60°C

Note

1): If the cell is kept as ex-factory status (30% of charge), the capacity recovery rate is more than 80%.

Characteristics of INR18650 20Q

1 Standard Charge

This “Standard Charge” means charging the cell with charge current of 975mA and constant voltage 4.20V at 25°C, 0.02C cutoff.

2 Standard Discharge Capacity

The standard discharge capacity is the initial discharge capacity of the cell, which is measured with discharge current of 650mA with 2.5V cut-off at 25°C within 1 hour after the Standard charge.

Standard Discharge Capacity ≥ 3,000mAh

3 Rated Discharge Capacity

The rated discharge capacity is the initial discharge capacity of the cell, which is measured with discharge current of 3,250mA with 2.5V cut-off at 25°C within 1 hour after the Standard charge.

Rated Discharge Capacity ≥ 2,700mAh (90% of 3,000mAh)

4 Initial internal impedance

Initial internal impedance measured at AC 1kHz after Standard charge.

Initial internal impedance ≤ 45mΩ

5 Temperature Dependence of Discharge Capacity

Discharge capacity comparison at each temperature, measured with discharge constant current 650mA and 2.5V cut-off with follow temperature after the Standard charging at 25°C.

	Discharge temperature
	-10°C	25°C	45°C
Relative Capacity	50%	100%	95%

Note: If charge temperature and discharge temperature is not the same, the interval for temperature change is 3 hours.

Percentage as an index of the Standard discharge capacity (=3,000mAh) is 100%.

6 Temperature Dependence of Charge Capacity

Capacity comparison at each temperature, measured with discharge constant current 650mA and 2.5V cut-off at 25°C after the Standard charge is as follow temperature.

	Discharge temperature			Discharge Temperature
	-10°C	25°C	45°C	45°C
Relative Capacity	50%	100%	95%

Note: If charge temperature and discharge temperature is not the same, the interval for temperature change is 3 hours. Percentage as an index of the Standard discharge capacity (=3,000mAh) is 100%

7 Charge Rate Capabilities

Discharge capacity is measured with constant current 650mA and 2.5V cut-off after the cell is charged with 4.2V at 25°C as follows.

	Charge Condition
Current	975mA	1,625mA	3,250mA
Cut-off	5h or 0.02C	3h or 0.02C	2.5h or 0.02C
Relative Capacity	100%	95%	90%

Note: Percentage as an index of the Rated discharge capacity (=2,700mAh) is 100%.

How to Custom 18650 Battery Pack

We have the unique ability to develop custom 18650 battery pack to fit your needs. Our expert team of chemists, engineers, and manufacturers who use proven chemistry and production methods that will get from spec to production fast. Slim, flexible, more powerful.

WHAT WE CUSTOM

Custom Voltage Range: 3V ~ 120V
Custom Discharge Current: 0.2C ~ 120C (0.01A-1000A)
Custom BMS: Size, Features, Communication, Cut-off, Temperature
Custom Battery Size: Starting 0.5mm Thickness
Battery Temperature from -40°C–85°C
Custom Connector: JST/Molex/Hirose/Anderson/TE/Amphenol Etc

WHY CHOOSE US

Custom 18650 Battery Pack, MOQ 100 pcs
Custom Samples as fast as 3 Days
Strict Quality Control, No Safety Concerns Ever
Instant Customer Support, Solve Any Problem in Time.

Requirements

Let us know your size limitations and anticipated capacity or Hours needed for your project.

Design

We will send datasheet to you or New design according to your requirement.

Prototype

We will start making samples for you if all things are set.

Wait for Samples

It takes 3-10 days to make custom samples, Just have a little patience.

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