18650 3500mAh Lithium-ion Battery – High Capacity Rechargeable Cell
| Model | 18650 |
| Voltage | 3.7V |
| Capacity | 3500mAh |
| Max Size | 18.2mm*65.5mm |
| Operating Temperature | -20℃ to 60℃ |
| Standard Charge Rate | 0.5C |
| Standard Discharge Rate | 1C |
| Configuration | 1S1P |
| Weight | 68.4g |
VTCBATT Custom 18650 Lithium Battery Solutions
VTCBATT provides custom 18650 3.7V 3500mAh lithium battery manufacturing for OEM and industrial projects, supporting cell matching, battery pack design, BMS integration, connectors, labels, housings, and quality testing to meet specific application, performance, and branding requirements.
Long Cycle Life
Based on 0.5C/1C cycling, the VTCBATT 18650 Battery 3500mAh can maintain over 80% capacity after 500 cycles and totally reach 1000 times cycle life.
Different Discharge Rate
VTCBATT 18650 Battery 3500mAh can be discharged in different rates of 0.2C,0.5C,1C,2C,3C to meet different power consumption.
PCB with NTC
VTCBATT 18650 Batteries 3500mAh are provided with NTC(Negative Temperature Coefficient), a kind of temperature sense to decrease the resistance as the temperature increases, allowing accurate temperature monitoring of the batteries. The NTC plays a critical role in improving the battery reliability and safety.
Full Certification & Extended Warranty
VTCBATT 18650 Battery meet global certifications including CB, CE, UL, and UN38.3, and offer a 14-month warranty—two months longer than standard—to maximize customer confidence and profit.
VTCBATT 18650 battery passed all the major global certifications, such as CB, CE, EN61000,IEC62133,MSDS.UN38.3,ROHS,UL,BIS,KC Certification,which makes your product more competitive.
Compared to a normal 12-month warranty, VTCBATT lithium ion batteries have 14-month warranty and two extra months for shipping and customs clearance ,which ensure the customer’s profit.
VTCBATT Production and Service
VTCBATT not only focuses on customized design and excellent service to meet the diverse demands of different customers, but also devotes itself to precise and standardized manufacturing in every process to ensure the highest-quality batteries. Meanwhile, VTCBATT will provide comprehensive support from pre-sales to after-sales, focusing on customers’ feedback to establish long-term and win-win cooperation. VTCBATT professional sales and technical engineer teams will be your best custom battery experts to assist with reliable and fast services at any time.
From the raw materials mixing to the cell test, VTCBATT adopts an automatic manufacturing process to maximize production efficiency and enhance the batteries
quality, safety, and reliability. The entire manufacturing process is monitored and 100% tested before flowing to the next procedure to ensure zero defects before delivery.
Over the past 20 years, VTCBATT has built strong partnerships with customers in more than 50 countries worldwide. With reliable quality, responsive service, and tailored battery solutions, we have earned the trust of our clients—many of whom have maintained long-term cooperation and lasting friendships with us for over a decade. Together, we continue to grow and move forward toward a brighter future.
Application for 18650 Battery 3500mAh
