High-capacity LP18650 2S1P 3500mAh 7.4V Li-ion Battery Pack

High-capacity LP18650 2S1P 3500mAh 7.4V Li-ion Battery Pack. Compact 18mm x 36mm x 70mm design with integrated PCM. Ideal for industrial and medical gear. Order from LiPol today.

High-Performance Li-ion Battery LP18650 2S1P 3500mAh
In the world of professional portable electronics, the 18650 cell remains the global standard for reliability, energy density, and cycle life. As a leading LiPol Battery Manufacturer, we have optimized this classic chemistry into a powerful, multi-cell configuration: the LP18650 2S1P 3500mAh Li-ion Battery Pack.

This Li-ion battery pack is engineered for devices that require a higher voltage threshold and a rugged cylindrical form factor. With a Size of 18mm x 36mm x 70mm, it provides a streamlined power source that is easy to integrate into both existing and new hardware designs.

Professional Dual-Cell Configuration
The LP18650 2S1P utilizes two high-quality 3.7V cells connected in series to achieve a nominal 7.4V (25.9Wh). This configuration is highly efficient for devices with 5V or higher internal rails, reducing heat loss during voltage regulation.

Integrated Safety: Every pack includes a high-performance Protection Circuit Module (PCM) that manages cell balancing, over-charge protection, and short-circuit prevention.

High Capacity: The 3500mAh rating ensures extended runtimes for critical equipment.

Durable Build: Wrapped in high-quality blue PVC heat shrink with professional lead exits, designed for industrial environments.

Power Your Innovation with LiPol
Reliable energy is the foundation of every great device. For a detailed datasheet or a volume quote on our LP18650 2S1P 3500mAh, visit LiPol Battery Manufacturer Now.

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High-capacity LP18650 2S1P 3500mAh 7.4V Li-ion Battery Pack Specifications

Li-ion Batteries Application

Li-ion Battery Pack Application
The versatility of the LP18650 2S1P 3500mAh makes it the industry “workhorse” for professional hardware. These packs are extensively used across several high-demand sectors:

Medical Equipment: Portable oxygen concentrators, infusion pumps, and patient monitoring systems.

Industrial IoT: Remote sensors, agricultural drones, and long-range communication gateways.

Consumer Robotics: Battery-powered cleaning robots, handheld vacuum stabilizers, and educational kits.

Lighting Solutions: Professional high-lumen flashlights using LP26650 or LP21700 cells, and emergency backup lighting.

Hot Selling Li-ion Batteries

Popular Li-ion Batteries and Form Factors
When selecting a cylindrical power source, it is essential to choose the correct size for your mechanical housing. LiPol offers the industry’s most popular Li-ion batteries in various standard dimensions to fit your specific needs:

LP18650: Size 18mm * 65mm — The most versatile and widely used cell for everything from medical tools to power banks.

LP21700: Size 21mm * 70mm — A modern standard offering higher capacity and discharge rates for high-drain applications.

LP26650: Size 26mm * 65mm — A high-capacity “fat” cell perfect for rugged flashlights and industrial backup systems.

Whether you need a single cell or a 2S1P 3500mAh pack, we provide the documentation and testing reports required for global compliance.

Instock Li-ion Batteries

Currently Available Instock Li-ion Batteries
To help you bypass long manufacturing lead times, LiPol maintains an inventory of currently available instock Li-ion and LiPo Batteries. We carry high-demand configurations, including the LP18650 2S1P 3500mAh, ready for immediate dispatch. Purchasing from our stock battery inventory allows you to secure a sample for your R&D project within days. For projects with unique requirements, we also offer custom battery packs where we can adjust wire lengths, add NTC thermistors, and install specific connectors like JST or Molex.