Description

3.7V 5000mAh High Capacity 21700 Cell | Samsung 50GB 15A Max Discharge

Designed for durability, the Samsung INR21700-50GB delivers 500+ charge cycles while retaining 80% capacity, outlasting standard cells in long-term use. Its low self-discharge minimizes energy loss during storage, making it ideal for backup power and seasonal equipment. Built with premium materials and strict Samsung SDI quality control, it maintains consistent performance over years of use, reducing replacement costs.

1.Basic Parameters

Battery Model	INR21700-50GB
Battery Type	21700 Cylindrical Cell
Nominal Voltage	3.7V
Nominal Capacity	5000mAh
Working Voltage	2.5V-4.2V
Max Charge Current	1C
Max Discharge Current	2C
Peak Discharge Current	3C
Internal Resistance	≤18mΩ
Charge Temperature	0-45℃
Discharge Temperature	-20-60℃
Storage Temperature	-20-45℃
Cycle Life	≥1000 cycles
Battery Size	φ21*70mm
Battery Weight	68g
Warranty	2 Years

2.Why 21700 Battery Cell?

Higher energy density
The 21700 cell offers greater capacity (typically 4000–5000 mAh) than the older 18650 cell, without a significant increase in size.

Improved power output
It supports higher continuous discharge currents, making it suitable for high-drain applications like e-bikes, power tools, and EVs.

Better thermal management
The larger cylindrical format allows for more efficient heat dissipation, enhancing safety and cycle life compared to smaller cells.

Cost-effective performance
Fewer cells are required to achieve the same pack capacity (e.g., replacing 3-4 18650 cells with 2-3 21700 cells), reducing assembly complexity and overall system cost.

What 21700 cells does NOGIPower supply?

NOGIPower have built strong partnerships with leading 21700 cell manufacturers, allowing us to provide our customers with a reliable, stable, and diverse range of 21700 cells. Below are some of our most popular 21700 models for your reference.

Manufacturer Model	Material	Voltage	Capacity	Brand	Cycles life	Peak discharge Rate
INR21700/40P	NMC	3.7V	4000mAh	EVE	≥600 Cycles	12.5C
INR21700/40PL	NMC	3.7V	4000mAh		≥600 Cycles	22.5C
INR21700/50E	NMC	3.7V	5000mAh		≥1000 Cycles	5C
21700/50PL	NMC	3.7V	5000mAh		≥1000 Cycles	36C
INR21700/58E	NMC	3.7V	5700mAh		≥1000 Cycles	5C
INR21700-30T	NMC	3.7V	3000mAh	SAMSUNG	≥500 Cycles	11C
INR21700-40T	NMC	3.7V	4000mAh		≥500 Cycles	11.25C
INR21700-50E	NMC	3.7V	5000mAh		≥1000 Cycles	3C
INR21700-50GB	NMC	3.7V	5000mAh		≥1000 Cycles	3C
INR21700-50S	NMC	3.7V	5000mAh		≥500 Cycles	8C
INR21700-45E	NMC	3.7V	4500mAh	DMEGC	≥1000 Cycles	4C
INR21700-50E	NMC	3.7V	5000mAh	DMEGC	≥1000 Cycles	4C
2170 (JP40)	NMC	3.7V	4000mAh	Ampace	≥600 Cycles	35C
INR-21700-P42A	NMC	3.7V	4200mAh	Molicel	≥500 Cycles	10.5C
INR‑21700‑P45B	NMC	3.7V	4500mAh		≥500 Cycles	10C
INR‑21700‑P50B	NMC	3.7V	5000mAh		≥500 Cycles	12C
ND21700-4000mAh-3C	NMC	3.7V	4000mAh	NORDA	≥800 Cycles	4C
ND21700-40H	NMC	3.7V	4000mAh		≥300 Cycles	10C
ND21700-4500mAh-3C	NMC	3.7V	4500mAh		≥800 Cycles	4C
ND21700-5000mAh	NMC	3.7V	5000mAh		≥500 Cycles	3C

Battery Module/Pack Customization
NOGIPower provides full customization service including semi-finished battery pack customization & finished battery OEM/ODM. For 21700 cells, NOGIPower adopts advanced laser welding technology for cylindrical cell assembly via 3 standardized steps: cell grading & arrangement, precision laser spot welding and modular forming. Featuring ultra-low internal resistance, robust welding joint and flexible customized layout, our semi-finished modules or pack serve energy storage, e-vehicle and industrial power supply industries with high precision, reliability and production efficiency.

3.Real Customer Reviews
Our growth comes from every customer’s recognition. NOGIPower team are committed to delivering reliable batteries to our customers.

4.Customer FAQ

Q: What certifications do your batteries have?

A: Our batteries are certified with UN38.3, CE, FCC, RoHS, IEC62133, UL and other regional certifications as required.

Q: Can you provide MSDS, test reports and transport documents?

A: Yes, we can provide full documentation including MSDS, UN38.3 test report, cargo transport assessment report, and certification files.

Q: What’s your MOQ (Minimum Order Quantity)?

A: No strict MOQ requirement. Small samples are available for testing.

Q: Can you ship to our port/warehouse directly?

A: Yes, FOB/CIF/DAP/DDP are all available for most countries. DDP (door to door and duty paid) is preferred by a larger number of customers.

Q: Do you support OEM/ODM customization?

A: Yes, battery pack/OEM/ODM available.

5.Who We are?
NOGIPower focus on high-performance lithium battery solutions.We have established long-term in-depth cooperation with renowned battery manufacturers including CATL, CALB, EVE and Farasis etc. Our product lineup includes LFP batteries, NMC ternary lithium batteries and energy storage systems, alongside professional OEM & ODM customization services.
All products comply with international standards, featuring superior safety and long service life. Our reliable solutions are widely applied in solar energy storage, vehicles and industrial power sectors. We partner with clients worldwide to advance sustainable energy development.

More info, please contact us: Wechat/WhatsApp: +8613570852640 Email: support@nogipower.com

3.7V 5000mAh High Capacity 21700 Cell Samsung 50GB 15A Max Discharge