11.1V 3000mAh (3S1P) Li-Ion Rechargeable Battery Pack (No BMS)

Power your electronics projects with the Freak Engineer 11.1V 3000mAh (3Ah) 3S1P Li-Ion Rechargeable Battery Pack. Designed using high-quality 18650 Li-Ion cells, this battery pack delivers reliable performance for robotics, drones, RC models, DIY electronics, portable devices, and embedded systems.

With a nominal voltage of 11.1V and 3000mAh capacity, this battery provides stable power for medium-load applications. The pack supports a 1C continuous discharge rate (3A Max), making it suitable for projects requiring dependable and efficient energy output.

This battery pack is supplied without an integrated BMS (Battery Management System), allowing experienced users to integrate their own protection circuitry according to project requirements. Manufactured in India, it offers excellent build quality and dependable performance for makers, engineers, and hobbyists.

Important: Since this battery pack does not include a BMS, use a compatible Li-Ion charger and appropriate protection circuitry to ensure safe operation.

Key Features

• High-quality 3000mAh (3Ah) Li-Ion battery pack
• 11.1V nominal output suitable for various electronic projects
• 3S1P configuration (3 cells in series)
• Built using premium 18650 Li-Ion cells
• Continuous 1C discharge rate (3A Max)
• Lightweight and compact design
• Reliable voltage stability and long service life
• Factory assembled with output leads
• Ideal for DIY battery-powered systems
• Made in India
• No built-in BMS for custom battery management integration

Applications

Perfect for:

• Robotics Projects
• RC Cars & RC Boats
• DIY Electronics
• Embedded System Projects
• Portable Instruments
• Battery Backup Systems
• Arduino & Raspberry Pi Projects (with suitable voltage regulation)
• Surveillance Devices
• LED Lighting Systems
• Prototype Development
• Educational Projects
• Industrial Electronics

Specifications

• Brand: Freak Engineer
• Battery Type: Lithium-Ion (Li-Ion)
• Cell Type: 18650
• Battery Configuration: 3S1P
• Nominal Voltage: 11.1V
• Capacity: 3000mAh (3Ah)
• Continuous Discharge Rate: 1C
• Maximum Continuous Current: 3A
• Battery Management System (BMS): No
• Rechargeable: Yes
• Country of Origin: Made in India
• Connector: Pre-installed power connector (as shown in image)

Package Includes

• 1 × Freak Engineer 11.1V 3000mAh (3S1P) Li-Ion Battery Pack
• Pre-attached output cable with connector

Safety Instructions

• Use only a compatible 3S (12.6V) Li-Ion charger.
• Do not short-circuit the battery terminals.
• Do not puncture, crush, or expose the battery to fire.
• Never overcharge or over-discharge the battery.
• Since the battery has no built-in BMS, use an external protection circuit if required.
• Store in a cool and dry location away from direct sunlight.

Why Choose Freak Engineer?

The Freak Engineer 3000mAh 11.1V Li-Ion Battery Pack is built for engineers, hobbyists, students, and makers who require a dependable rechargeable power source. Its premium 18650 cells, compact construction, and customizable no-BMS design make it an excellent choice for a wide range of electronics and robotics applications.