Cylindrical Lithium Cells
Our NBS cylindrical lithium cells are best for high energy density, long cycle life, and consistent performance, and are widely used in battery formats in modern electronics and energy systems that serve as the foundation for many high-drain applications, from electric vehicles to industrial equipment. At National Battery Supply, we ensure every cylindrical lithium cells have high capacity, stable output voltage, large current discharge, and a wide temperature operating range.
Cylindrical Lithium Cells
Professional Cylindrical Battery Cell Design
The structure of our cylindrical lithium cells includes with shell, a cap, positive electrode, negative electrode PTC element, a safety gasket, and valves. The casing of the battery is constructed with nickel-plated steel. Also, the whole battery casing is the negative electrode of the battery, and the top cap is the positive electrode of the battery.
What Makes Our Cylindrical Battery Cells Safe?
Our cylindrical cells are served with best safety mechanisms that include pressure vent, Current Interrupt Device, and Positive Temperature Coefficient. A pressure vent is a weak point built to release internal pressure (gases) safely if is battery overheats.
CID is a mechanical switch that permanently closes the electrical connection if the internal pressure exceeds the safety limit. Whereas a PTC limits the current flows and limits overheating when a rise in temperature.
Durability You Can Rely On
Our NBS-built lithium cylindrical cells are built with external protection circuitry that keeps the battery voltage from going too high (over-charging) or too low (over-use) that the battery will cut out when completely dead at 2.5V. Although even with this protection, you must use a Li ion/ LiPoly constant-current charger to recharge them at a rate of 1 Amp or less.
Our Lithium Cylindrical Cell Sizes
18500 cells are 18mm in diameter, 65 mm in length, that is made for laptops and EV’s
21700 cells are in a 21mm diameter, 70mm in length, and are mostly uses in modern electric vehicles and power tools.
14500 cells are similar in size to an AA battery and are mostly built for small electronic devices and flashlights, and more.
Performance and Efficiency
Our NBS cylindrical lithium cells output a high energy density of 200–250 Wh/kg and serve a long cycle life of 500–2000 cycles while maintaining a high energy-to-weight ratio with stable performance over hundreds to even thousands of charge cycles.
Advantages of Cylindrical Lithium Cells
Our custom-built lithium cylindrical cells come with metal casing safe against physical stress and swelling. Inside the cylindrical shape, that dissipates the heat efficiently and overcomes energy loss. Also, with our nickel plated casing that uniformly distributes the pressure and overcomes the risk of leakage or explosion under any normal circumstances.
Power Up Your Equipment With Our NBS Cylindrical Lithium Cells
Get reliable, long-lasting energy for all your power needs with our advanced, high-capacity cylindrical lithium cells.
How Cylindrical Cells Drive Modern Technology?
Cylindrical lithium cells are mostly use in consumer electronics like cameras, flashlight. For Electrical Vehicles cylindrical lithium cells are use in consistent performance. Also you can use in home and industrial backup power systems for backup power systems. In medical equipment like portable diagnostic and monitoring systems and use in robotics, drones for continuous power supply and high drain performance.
Why Are Cylindrical Lithium Cells More Efficient?
Our NBS built cylindrical lithium cell works through the energy stored mechanism based on the movement of ions, when you charge the cell lithium ion start moving from cathode to anode and for discharging time the ions travel back from anode to cathode and create an external circu
Get High Consistent Power On Your Devices with Our Cylindrical Lithium-Ion Cells
Get ready for superior performance and exceptional cycle life, engineered into every compact and robust cylindrical cell.
What Our Clients Are Saying
National Battery Supply
(4.7/5.0)
National Battery Supply
(4.7/5.0)
FAQ’s
How long do cylindrical lithium cells last?
Cylindrical lithium cells usually last between 500 to 2000 charge cycles
Are cylindrical lithium cells safe to use?
Yes, our cylindrical lithium cells are safe to use and comes with built in feature like pressure relief valve. PTC and (Current Interrupt Devices) CID.
Can cylindrical lithium cells be replaced individually in a battery pack?
Yes, you can replace cylindrical lithium cells with battery packs.
How do cylindrical lithium cells compare with prismatic or pouch cells?
Cylindrical cells are better than prismatic and pouch cells in terms of mechanical strength, easier heat management, and lower manufacturing cost.
Can cylindrical lithium cells overheat or explode?
No, most of our cylindrical lithium cells are built with thermal and pressure safety mechanisms that overcomes any mishap under any normal circumstances.
Request more information
National Battery Supply delivers dependable energy storage solutions tailored to commercial, industrial, and government applications. Our catalog ranges from custom battery manufacturing and UPS systems, portable power stations, to high-capacity solutions like whole-home battery energy storage systems (BESS) and scalable containerized energy storage units- engineered for reliability, flexibility, and rapid deployment.
We support critical infrastructure, telecom, data centers, healthcare, and remote operations with power systems built for performance in demanding environments. Whether it’s deep cycle batteries, lithium forklift replacements, OEM portable power kits, solar backups, and large-scale energy storage systems. We provide tailored solutions with short lead times, custom branding, and bulk pricing.
Our team also specializes in helping integrators, resellers, and developers source complete battery systems for residential microgrids, off-grid power stations, and industrial container setups. Whether you need to back up a home, energize a remote site, or manage facility-wide loads, we have the scalable energy storage options to match.
Contact us today to learn how our advanced power systems can reduce downtime, extend operational capacity, and support your long-term energy goals.
National Battery Supply is a reputable manufacturer specializing in custom battery solutions. With over 20 years of experience, we can manage all your power needs.