Name: Samsung INR21700-50G 3.63V 4900mAh Long-Life Battery Cell
Brand: NOGI Battery
SKU: INR21700-50G
Availability: InStock
Rating: 5 (1 reviews)

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Samsung INR21700-50G 3.63V 4900mAh Long-Life Battery Cell

Description Review

Description

Product Overview

Samsung 50G – High Energy with Long Cycle Life

The Samsung INR21700-50G is a high-energy 21700 lithium-ion cell designed for battery packs that require a balance of long runtime, long service life and practical power output.

With a standard discharge capacity of at least 4900mAh, the 50G supports up to 14.7A continuous discharge at -20°C to 30°C. Samsung SDI also specifies ≥70% capacity after 1000 cycles under defined long-life test conditions, making it a strong option for applications where battery longevity and energy capacity are important.

The Samsung 50G is particularly suitable for e-bikes, e-scooters, portable energy storage, ESS/UPS and other energy-focused battery packs where runtime and service life are more important than extreme high-current performance.

1. Samsung INR21700-50G Cell Specifications

Manufacturer	Samsung SDI
Battery Model	INR21700-50G
Battery Type	21700 Lithium-ion Cell
Nominal Voltage	3.63V
Standard Capacity	≥4900mAh
Charge Voltage	4.2V
Discharge Cut-off Voltage	2.5V
Max Charge Current	1C (4.9A*)
Max Discharge Current	2C (9.8A @ 31°C to 60°C)
Peak Discharge Current	3C (14.7A @ -20°C to 30°C)
Internal Resistance	≤18mΩ
Charge Temperature	0-45℃
Discharge Temperature	-20-60℃
Cycle Life	≥1000 cycles (≥70% capacity)
Battery Dimensions	Max. Ø21.50 × 70.85mm
Battery Weight	Max. 71g
Warranty	3 Years – NOGI Warranty

Samsung INR21700-50G Datasheet→

View the Samsung SDI technical specification for detailed information on capacity, charging, discharge performance, cycle life, dimensions, operating temperature and cell handling requirements.

2. Why Choose Samsung INR21700-50G?

4900mAh High Energy Capacity

Provides longer runtime for battery packs where energy capacity is a key priority.

Long-Life Performance

Samsung SDI specifies ≥70% capacity after 1000 cycles under its defined long-life test conditions.

Up to 14.7A Continuous Discharge

Supports up to 14.7A continuous discharge at -20°C to 30°C, combining high energy capacity with practical power capability.

Energy & Power Balance

A strong choice for projects requiring long runtime and moderate continuous power, rather than extreme high-current discharge.

Samsung SDI Cell Quality

Defined manufacturer specifications for capacity, charging, discharge performance, cycle life and operating conditions provide a reliable technical basis for battery pack design.

Is Samsung 50G Right for Your Battery Pack?

The Samsung INR21700-50G is a good choice when your battery pack prioritizes:

Long Runtime

High energy capacity helps extend operating time between charges.

Long Service Life

Suitable for battery systems where cycle life is an important part of the project design.

Moderate Continuous Power

Provides up to 14.7A continuous discharge under specified temperature conditions.

Energy-Focused Pack Design

Ideal when energy capacity and service life are more important than extreme high-current performance.

Need Higher Power?

For battery packs requiring substantially higher discharge current, the Samsung INR21700-50S may be a more suitable option.

Recommended Applications

With its combination of high energy capacity, long-life performance and moderate discharge capability, the Samsung INR21700-50G is suitable for:

E-bike battery packs

E-scooter battery packs

Light electric vehicle (LEV) battery systems

Portable energy storage

ESS and UPS battery systems

Industrial and mobile equipment

Customized 21700 battery packs

Cell suitability should be evaluated according to pack voltage, continuous and peak current, operating temperature, BMS settings and thermal design.

Testing & Cell Matching

Testing & Cell Matching for Battery Pack Projects

NOGI Battery can provide voltage and internal resistance testing, cell matching and additional testing support according to order requirements.

Samples can also be arranged for project evaluation before bulk orders. For customized battery projects, send us your pack voltage, required capacity, continuous current, peak current and application so we can help evaluate suitable cell options.

What Samsung SDI cylindrical cells can Nogibattery supply?

Nogibattery provides full lineup of genuine Grade A Samsung SDI cylindrical lithium-ion cells, covering mainstream 18650 and 21700 sizes with abundant in-stock classic INR & ICR models. Some Best-selling models for your reference.

Model	Format	Capacity	Positioning
INR18650-20R	18650	2000mAh	High Power
INR18650-25R	18650	2500mAh	High Power
INR18650-30Q	18650	3000mAh	Balanced Power
INR18650-35E	18650	3500mAh	High Energy
INR21700-30T	21700	3000mAh	High Power
INR21700-40T	21700	4000mAh	High Power
INR21700-50E	21700	5000mAh	High Energy
INR21700-50G	21700	≥4900mAh	Long Life + High Energy
INR21700-50S	21700	5000mAh	High Power + High Capacity
INR21700-53G1	21700	5300mAh	High Energy

3. Customer Review

Every acknowledgment from clients fuels NOGIBattery's development. Our team stays dedicated to supplying dependable lithium cells for all partners.

4. Customer FAQ

Q: Are Samsung INR21700-50G cells available for bulk orders?

A: Please contact us for current stock, batch information, MOQ and bulk pricing. Availability may vary by production batch.

Q: Can I order Samsung 50G samples before a bulk purchase?

A: Yes. Samples can be arranged for cell testing and battery pack evaluation before larger-volume orders.

Q: Can you provide test data before shipment?

A: Yes. Voltage, internal resistance and other available test results can be provided according to the order and testing requirements.

Q: Can Samsung 50G cells be matched for battery pack assembly?

A: Yes. Voltage and internal resistance matching is available. Additional matching requirements can be discussed according to your battery project.

Q: Do you provide battery pack assembly support?

A: Yes. NOGI Battery can support cell matching, welding and customized module or battery pack assembly according to project requirements.

Q: Can you ship Samsung 50G cells internationally?

A: Yes. International battery shipping solutions are available. DDP shipping can be discussed depending on the destination and order requirements.

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Samsung INR21700-50G 3.63V 4900mAh Long-Life Battery Cell