Key Features
Dimensions and Capacity
The 21700 battery is physically larger than many other common battery types, such as the 18650. This increased size allows for a higher energy capacity, typically ranging from 3000mAh to 5000mAh. This capacity is significantly greater than that of the 18650 battery, which generally ranges between 1500mAh and 3000mAh.
Voltage and Stability
A standard 21700 battery operates at a nominal voltage of 3.7V and has a voltage range between 2.5V and 4.2V. One of the standout features of the 21700 battery is its ability to maintain a stable voltage throughout its discharge cycle, ensuring consistent performance in various applications.
High Energy Density
21700 batteries are known for their high energy density, which enables them to store more energy in a relatively compact form. This makes them ideal for high-drain applications where both power and capacity are crucial.
Advantages
Higher Capacity and Longer Run Time
The most significant advantage of 21700 batteries over other types like the 18650 is their higher capacity. This translates to longer run times for devices, which is particularly important in applications such as electric vehicles and power tools.
Improved Safety Features
Many 21700 batteries come equipped with built-in safety features like overcharge protection and short circuit protection. These features help prolong the battery’s lifespan and ensure safe usage, making them more reliable for consumers and manufacturers alike.
Consistent Performance
The stable voltage output of 21700 batteries throughout their discharge cycle ensures that devices perform consistently without sudden drops in power. This reliability is crucial for high-drain applications.
Molicel 21700 P42A
The Molicel 21700 P42A is a versatile and powerful battery that excels in both capacity and discharge ability. With a minimum capacity of 4,000mAh and a typical capacity of 4,200mAh, it offers exceptional power and endurance. Its maximum continuous discharge rating of 45 Amps ensures that it can handle even the most demanding devices without compromising performance.
Manufacturer: Molicel
Model: P42A
Positive Terminal: Flat Top
Nominal Capacity: 4200mAh
Continuous Discharge Rating (max): 45A
Nominal Voltage: 3.6V
Maximum Voltage: 4.2V
Discharge Cut-off Voltage: 2.5V
Protected: No
Rechargeable: Yes
Approx. Dimensions: 21.40mm x 70.00mm
Approx. Weight: 70g (Max)
Associated Names: INR-21700-P42A
Samsung 30T
With unmatched power, this cell delivers an incredible punch of current that no other cell on the market can match. Pumping out an impressive 3,000 mAh of energy, this cell boasts a true 35 amp Continuous Discharge/Drain Rating without any temperature cut involved. Even at 30 amps of continuous discharge/drain, it only warms up to 67 degrees Celsius or 153 degrees Fahrenheit, showcasing the exceptional ingenuity and research that went into its development. Designed specifically for Ultra-High Discharging/Drain devices over 20 amps, this cell truly shines and demonstrates its full capabilities.
Manufacturer: Samsung SDI
Model: 30T
Positive Terminal: Flat Top
Nominal Capacity: 3000mAh
Continuous Discharge Rating (max): 35A
Nominal Voltage: 3.6V
Maximum Voltage: 4.2V
Discharge cut-off Voltage: 2.5V
Protected: No
Rechargeable: Yes
Approx. Dimensions: 21.10mm x 70.20mm
Approx. Weight: 68.2g
Associated Names: INR21700-30T
Samsung 50E
The Samsung 50E 21700 Battery is a high-capacity, lithium-ion rechargeable cell ideal for devices requiring extended runtime and consistent power. With a robust 5000mAh capacity and a 10A continuous discharge rate, it delivers reliable performance for low to moderate-drain applications. Engineered with stable lithium-ion chemistry, the 50E offers excellent efficiency and longevity, supporting over 300 charge cycles with minimal degradation. Its larger 21700 form factor provides greater endurance than standard 18650 cells, making it perfect for flashlights, e-bikes, and portable electronics. Unprotected and built for advanced users, the Samsung 50E balances power, safety, and durability in one compact unit.
Specifications:
Brand: Samsung
Model: 50E
Battery Type: 21700
Capacity: 5000mAh
Nominal Voltage: 3.6V
Full Charge Voltage: 4.2V
Discharge Cutoff Voltage: 2.5V
Continuous Discharge Rate (CDR): 10A
Rechargeable: Yes
Protected: No (Unprotected cell – use with proper safety measures)
Cycle Life: Approximately 300+ charge cycles
Diameter: 21.4mm
Length: 70.0mm
Weight: Approximately 70g
Samsung 40T
The Samsung 40T battery is a reliable choice for your vaping needs, offering long-lasting performance and consistency. Ideal for use with regulated single or dual-battery mods, this cell can handle up to approximately 70 watts per cell. With the Samsung 40T, you can enjoy all-day vaping without compromising on quality, especially if you prefer lower wattages.
Manufacturer: Samsung SDI
Mode: 40T (3)
Positive Terminal: Flat Top
Nominal Capacity: 4000mAh
Continuous Discharge Rating (max): 35A
Nominal Voltage: 3.6V
Maximum Voltage: 4.2V
Discharge cut-off Voltage: 2.5V
Protected: No
Rechargeable: Yes
Approx. Dimensions: 21.1mm x 70.4mm
Approx. Weight: 68.7g
Associated Names: INR21700-40T
Molicel 21700 P45B
The Molicel 21700 P45B 4500mAh 45A Battery is a powerful and reliable option for those seeking a long-lasting and high-performing battery. With its high discharge current and exceptional cycle life, this battery delivers a strong performance. It is designed to operate smoothly even in low temperatures as low as -40°C, making it suitable for various environments.
Manufacturer: Molicel
Model: P45B
Positive Terminal: Flat Top
Nominal Capacity: 4500mAh
Continuous Discharge Rating (max): 45A (80C Temp cut-off)
Nominal Voltage: 3.6V
Maximum Voltage: 4.2V
Discharge cut-off Voltage: 2.5V
Protected: No
Rechargeable: Yes
Approx. Dimensions: 21.55mm x 70.15mm (Max)
Approx. Weight: 70g (Max)
Associated Names: INR-21700-P45B
Samsung 58E
The Samsung 58E 21700 Battery is a high-capacity, rechargeable lithium-ion cell designed for long-lasting power in energy storage systems and low-to-moderate drain devices. With a massive 5330mAh capacity and a continuous discharge rate of 10.7A, it delivers extended runtime and stable performance across multiple applications. Built for reliability, this unprotected 21700 cell supports over 500 charge cycles with minimal degradation. Its lithium-ion chemistry ensures efficient power output and voltage stability, making it ideal for daily use where longevity matters. Compact yet powerful, the Samsung 58E is a trusted choice for users seeking dependable energy solutions in a high-density form factor.
Specifications
• Brand: Samsung
• Model: 58E (CC5493F101)
• Battery Type: 21700
• Capacity: 5330mAh
• Nominal Voltage: 3.6V
• Full Charge Voltage: 4.2V
• Discharge Cutoff Voltage: 2.5V
• Continuous Discharge Rate (CDR): 10.7A
• Rechargeable: Yes
• Protected: No (Unprotected cell – use with proper safety measures)
• Cycle Life: Approximately 500+ charge cycles
• Diameter: 21.1mm
• Length: 70.0mm
• Weight: Approximately 68g
HOHM TECH RUN XL 21700
The Hohm Run XL 21700 4007mAh 30.3A Battery by Hohm Tech is a high-performance battery designed for vaping enthusiasts. With its increased charge capacity and speed, it offers a longer-lasting and more efficient vaping experience. Made from a lithium nickel manganese cobalt composite, this battery is at the forefront of battery technology in the vaping market.
Capacity: 4007mAh
Max Charge Rate: 6.01A
Max Charge Voltage: 4.2V
Continuous Discharge Rate: 30.3A
Max 80oC | 3.2V cut-off: 38.6A
Pulse | Peak: 44.1A
Cycle Life Retention: 500 Cycles (72%), 1000 (62%)
Chemistry Type: QSP Li-NMC
Sony VTC6A
The Sony VTC6A is a reliable battery suitable for vaping up to 70 watts per cell, with a 4000 mAh capacity for extended vaping sessions. It offers performance similar to the Samsung 40T but may not be as easily found as other batteries in the market.
Manufacturer: Murata
Model: US21700VTC6A (VTC6A)
Size: 21700
Style: Flat Top
Nominal Capacity: 4100mAh
Discharge Current: 40A Maximum Continuous with 80 deg C cutoff
Nominal Voltage: 3.6V
Maximum Voltage: 4.2V
Approximate Dimensions: 21.1mm x 70mm
Approximate Weight: 72.9g
