Li-ion

18650 3500mAh Lithium-ion Battery – High Capacity Rechargeable Cell

Parameter	Specification
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

✓Certification supportCB, CE, UL, UN38.3, MSDS, IEC61000, IEC62133, EU2023/1542

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Product overview

18650 Battery 3500mAh for RC Models, Drones, and Robotics | Battery Manufacturers in China & Battery Supply Factory

Featuring high-energy density and compact size, 18650 3.7V 3500mah lithium ion polymer battery is high-capacity, small-size and lightweight to supply long-lasting power to satisfy the runtime of different applications. The 3500mAh lithium polymer battery can support a 3C continuous discharge current as a strong power supply for Robotics, Portable Equipment, GPS trackers, Medical Devices, IOT Devices, drones, and UAVs.

01

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.

02

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.

03

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.

Technical insight

Product and application details

Drone

The compact 18.2mm diameter allows tight integration into small UAV frames without altering aerodynamic balance or center of gravity.

Robotics

High discharge rates support sudden torque demands in mobile robots while maintaining stable voltage under heavy dynamic loads.

Solar Sensor

Extended operating temperature range ensures reliable performance for outdoor solar sensors facing extreme environmental heat or cold.

UAV

Lightweight 68.4g design maximizes flight endurance for unmanned aerial vehicles by minimizing overall payload mass effectively.

Featuring high-energy density and compact size, 18650 3.7V 3500mah lithium ion polymer battery is high-capacity, small-size and lightweight to supply long-lasting power to satisfy the runtime of different applications. The 3500mAh lithium polymer battery can support a 3C continuous discharge current as a strong power supply for Robotics, Portable Equipment, GPS trackers, Medical Devices, IOT Devices, drones, and UAVs.

Factory capability

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 provides comprehensive support from pre-sales to after-sales, focusing on customer feedback to establish long-term and win-win cooperation. VTCBATT professional sales and technical engineer teams will be your custom battery experts for reliable and responsive project support.

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Modern Manufacturing

From raw materials mixing to cell testing, VTCBATT adopts automated manufacturing processes to improve production efficiency and battery quality, safety, and reliability. The manufacturing process is monitored and tested before material moves to the next procedure.

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Trusted by Global Customers

Over the past 20 years, VTCBATT has built partnerships with customers in more than 50 countries. Reliable quality, responsive service, and tailored battery solutions support long-term cooperation with equipment manufacturers, distributors, and brands.