
This 18350 lithium ion battery pack is engineered for professional users demanding reliable power in compact electronic devices. Targeting industrial and consumer electronics sectors, it offers a specialty solution for manufacturers seeking a stable and consistent power source. As a product from a custom battery manufacturer, it supports integration into diverse devices such as GPS trackers, medical instruments, and portable electronics. The 1100mAh nominal capacity with 3.7V nominal voltage ensures compatibility across applications requiring long-lasting lithium ion battery pack options, meeting stringent safety and performance demands of contemporary design.
Featuring a low internal resistance of ≤30 mΩ and a maximum continuous discharge current of 3C, this 18350 cell exhibits strong electrical efficiency and responsiveness. It employs a CC/CV charge methodology with a 4.2V cut-off voltage and supports up to 1C max charging current. The compact size (18.3mm diameter, 35.5mm length) provides high energy density suitable for space-constrained designs. Moreover, its lifecycle surpasses 500 cycles while maintaining at least 80% initial capacity, certified by CE, ROHS, UN38.3, and IEC62133 standards. These specific measurable parameters position it as a dependable component within the portfolio of any battery pack supplier.
The product demonstrates versatility in industrial and commercial applications ranging from outdoor power supplies to electric scooters and electric bikes. As an electric bike battery element or critical component within a battery for electric bike assemblies, it ensures operational reliability and continuous power supply even in dynamic environments. This lithium ion battery pack also meets safety and environmental requirements necessary in regulated sectors, facilitating adoption by manufacturers focused on delivering compliance and durability. Its presence across multiple verticals underscores its function not only as a power source but as a strategic asset for efficient system integration.
| Item | Specifications | Remark |
| Model No. | Li18350-1100 | |
| Nominal Voltage | 3.7V | |
| Nominal Capacity | 1100mAh | @0.2C Discharge |
| Dimensions | 18.3*35.5mm max | Diameter*Height |
| Cycle Life | ≥500 times | ≥ 80% of the initial capacity |
| Charge Method | CC/CV | |
| Charge Cut-off Voltage | 4.2V | |
| Discharge Cut-off Voltage | 3.0V | |
| Standard Charge Current | 0.2C | |
| Standard Discharge Current | 0.2C | |
| Max Continuous Charge Current | 1C | |
| Max Continuous Discharge Current | 3C | |
| Max Peak Discharge Current | 5C | |
| Recommended Operation Ambient Temperature | Charge: 0~45℃, Discharge:-20~60℃ | |
| Storage Temperature | -20℃~25℃ | 12 months |
| -20℃~45℃ | 3 months | |
| -20℃~60 ℃ | 1 month | |
| Internal Resistance | ≤30mΩ | |
| Weight | 22.5±2g |
The cell's cylindrical 18350 design integrates efficiently within modular assemblies, allowing flexible incorporation by a custom battery manufacturer or battery pack supplier. Its mechanical stability and compact dimensions enable optimized thermal management and ease of assembly into larger packs such as a battery for electric bike modules. The advanced automated manufacturing and rigorous quality control processes guarantee consistent dimensional accuracy and minimal internal resistance, key for system-level reliability. These design strengths facilitate seamless adaptation in varied configurations without compromising electrical or mechanical performance.
In operation, the 18350 Li-ion battery pack delivers consistent discharge voltage and high charge-discharge efficiency, critical for end-users requiring a dependable electric bike battery or battery for electric bike integration. The extensive cycle life reduces maintenance and replacement frequency, directly impacting total cost of ownership. Its compliance with international certifications provides users confidence in safety and environmental responsibility. Enhanced charge tolerance and stable voltage output improve user device performance, supporting applications ranging from portable medical devices to outdoor electric mobility solutions.
Within the electric bike industry, this lithium ion battery pack fulfills rigorous power delivery and safety standards necessary for battery for electric bike assemblies. Its compact 18350 cell format allows manufacturers to configure optimized battery packs that balance energy density and weight, essential for enhancing electric bike performance and rider ergonomics. The product’s certifications ensure compatibility with regulatory requirements, while its stable discharge current supports consistent motor output. Integration into electric bike battery systems enhances overall product reliability throughout diverse operating conditions, including varying temperature and load cycles.
In medical instrumentation, the battery pack supplier role is crucial for ensuring battery safety and longevity. This 18350 Li-ion cell provides a stable 3.7V nominal voltage and manages high duty cycles efficiently, enabling continuous operation of portable medical devices under critical conditions. Its long cycle life addresses device uptime requirements, while compliance with CE, ROHS, and IEC62133 assures adherence to healthcare safety standards. Medical device manufacturers depend on these batteries for workflow integration within portable monitoring or diagnostic equipment, ensuring power consistency and minimizing device downtime.
































What customization options do you offer as a custom battery manufacturer?
We provide tailored battery design and assembly services to meet specific technical and dimensional requirements. As a trusted custom battery manufacturer, we ensure each battery pack supplier solution matches your device’s power, size, and safety needs with precise engineering and quality control.
Can you supply battery packs for electric bikes with reliable performance?
Yes, we manufacture durable battery for electric bike applications with stable voltage and long cycle life. Our electric bike battery solutions comply with international safety certifications, supporting high discharge currents required for electric mobility devices.
What quality certifications does your lithium ion battery pack hold?
Our lithium ion battery pack series holds CE, ROHS, UN38.3, IEC62133, CB, UL, and PSE certifications. These attest to our commitment to safety, environmental compliance, and performance reliability, backed by ISO9001 and ISO14001 factory standards.
What are the recommended operating conditions and maintenance tips for the 18350 battery cell?
We advise charging between 0–45℃ and discharging between -20–60℃ for optimal performance. Store the battery in a cool, dry place within specified temperatures. Following these guidelines enhances cycle life and safety, ensuring your lithium ion battery pack maintains consistent output over time.
Yichun Topwell Power Co., Ltd (Trademark:TWE) established in 2002, is a high-tech enterprise focusing on the R&D, production and sales of lithium polymer batteries, lithium ion batteries, lithium iron phosphate batteries, and lithium thionyl chloride batteries. Products are widely used in consumer electronics, Internet of Things, smart home, medical, vehicle, home and outdoor energy storage, and have obtained CE, RoHS, Reach, UN38.3, IEC62133, CB, UL, MSDS certifications, etc.
Topwell moves on by providing reliable, efficient and intelligent battery solutions to meet different energy needs. We have efficient engineering, production and quality management teams. From raw material procurement, to production, testing, sales and after-sales service, all steps have been controlled by a strict quality management system. Our factory has passed ISO9001, IS014001, BSCI certification, SGS, Intertek audit. With the advantages in price, quality and service, we have established long-term and stable cooperative relationships with many well-known brands. Topwell always attached the great importance to the long term cooperation with customers. No matter the order is big or small, we do our best to support you the highest quality with favorable price. We believe that Topwell Power can be your best battery supplier!