Li-ion

VTC18650-3S2P 11.1V 6900mAh Lithium-ion Battery Pack for Medical Monitoring, Industrial Sensors, IoT Devices

Parameter	Specification
Model	VTC18650-3S2P
Battery Type	Cylindrical Lithium Ion Rechargeable Battery
Nominal Voltage	11.1V
Nominal Capacity	6900mAh (discharge with 1.34A to 7.5V)
Internal Impedance	≤150mΩ
Max. Charge Voltage	12.6V
Rapid Charge Current	6.7A
Standard Discharge	CC 0.2C (1.345A), Cut-off 7.5V
Max. Discharge Current	8A
Pack Dimensions	396468mm (Max)
Weight	Approx. 300g
Discharging Temperature	-20°C to 60°C

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

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Product overview

VTC18650-3S2P 25.2V 6900mAh Lithium Ion Battery Pack for Medical Monitoring, Industrial Sensors, IoT Devices | Battery Manufacturers in China & Battery Supply Factory

The VTC18650-3S2P is a high-performance lithium-ion battery pack designed by VTCBATT to meet the demanding energy requirements of modern industrial and medical applications. With a nominal voltage of 11.1V and a typical capacity of 6900mAh (76.59Wh), this battery pack delivers long-lasting power in a compact 18650-3S2P configuration. It features an advanced Protection Circuit Module (PCM) incorporating the Seiko S-8254AAN protection IC and six dp4407 MOSFETs, ensuring multi-layer safety against overcharge, over-discharge, over-current, and short circuits. The integrated 10K NTC thermal sensor provides critical overheat protection, cutting off discharge if the surface temperature exceeds 70°C.

As a leading battery factory, VTCBATT provides comprehensive OEM/ODM services, including custom wire lengths, connector matching, and batch production to support your project from sample development to full-scale deployment.

01

Advanced PCM & Seiko Protection IC

Safety is paramount in our 11.1V battery pack design. Equipped with a professional-grade Protection Circuit Module (PCM) featuring the Seiko S-8254AAN protection IC and six dp4407 MOSFETs, it provides multi-layer defense against overcharge, over-discharge, and over-current. This ensures the long-term integrity of the 18650 cells and the safety of the host device.

02

Durable Industrial-Grade Construction

Built for reliability, the battery pack is wrapped in high-quality blue PVC and features UL1007 18AWG/24AWG wiring. It is engineered to withstand vibration, mechanical shock, and temperature cycling, supporting a wide discharge temperature range from -20°C to 60°C. This makes it a robust power solution for both stationary and portable industrial equipment.

03

High Capacity 6900mAh for Extended Runtime

The VTC18650-3S2P features a high typical capacity of 6900mAh (76.59Wh), providing significantly longer operational life for energy-hungry devices like medical monitors and industrial IoT nodes. This 3S2P configuration optimizes the energy density of the 18650 cells, ensuring your equipment stays powered for extended periods without frequent recharging or battery swaps.

04

Integrated 10K NTC Thermal Safety

To prevent thermal-related issues, this battery pack includes an integrated 10K NTC thermistor. The system is designed for active overheat protection, automatically stopping discharge if the surface temperature exceeds 70°C. This critical feature makes the VTC18650-3S2P ideal for sensitive medical environments and demanding industrial applications.

Technical insight

Product and application details

CNC memory retention

The 6900mAh capacity ensures long-term data preservation during power outages for critical machine settings.

GPS tracking devices

Compact 39mm width fits tight enclosures while supporting the 8A peak current required for signal bursts.

Industrial IoT sensor nodes

Operating down to -20°C guarantees reliable performance in unheated warehouse environments for continuous monitoring.

Portable medical monitoring

Stable 11.1V output prevents device shutdowns during critical patient vitals tracking sessions.

Portable power tools

Rapid charge capability at 6.7A minimizes downtime between high-drain usage cycles on job sites.

Smart meters

Low internal impedance of 150mΩ reduces heat generation during frequent short-duration data transmission pulses.

Solar-powered lighting controllers

Wide discharge temperature range up to 60°C handles direct sunlight exposure without thermal degradation.

Wireless security systems

Low self-discharge characteristics maintain readiness for alarm triggers during extended periods of inactivity.

The VTC18650-3S2P is a high-performance lithium-ion battery pack designed by VTCBATT to meet the demanding energy requirements of modern industrial and medical applications. With a nominal voltage of 11.1V and a typical capacity of 6900mAh (76.59Wh), this battery pack delivers long-lasting power in a compact 18650-3S2P configuration. It features an advanced Protection Circuit Module (PCM) incorporating the Seiko S-8254AAN protection IC and six dp4407 MOSFETs, ensuring multi-layer safety against overcharge, over-discharge, over-current, and short circuits. The integrated 10K NTC thermal sensor provides critical overheat protection, cutting off discharge if the surface temperature exceeds 70°C. As a leading battery factory, VTCBATT

The VTC18650-3S2P is a high-performance lithium-ion battery pack designed by VTCBATT to meet the demanding energy requirements of modern industrial and medical applications. With a nominal voltage of 11.1V and a typical capacity of 6900mAh (76.59Wh), this battery pack delivers long-lasting power in a compact 18650-3S2P configuration. It features an advanced Protection Circuit Module (PCM) incorporating the Seiko S-8254AAN protection IC and six dp4407 MOSFETs, ensuring multi-layer safety against overcharge, over-discharge, over-current, and short circuits. The integrated 10K NTC thermal sensor provides critical overheat protection, cutting off discharge if the surface temperature exceeds 70°C.

As a leading battery factory, VTCBATT provides comprehensive OEM/ODM services, including custom wire lengths, connector matching, and batch production to support your project from sample development to full-scale deployment.

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.