Freak Engineer 3S1P 11.1V 3000 mAh 1C with BMS

The Freak Engineer 3S1P 11.1V 3000mAh 1C Li-Ion Battery Pack with BMS is a compact and reliable rechargeable battery designed for robotics, drones, RC models, DIY electronics, and portable power applications. Built using premium-grade lithium-ion cells in a 3S1P configuration, this battery delivers a nominal voltage of 11.1V with a 3000mAh capacity, providing stable power output and extended runtime. The integrated Battery Management System (BMS) offers protection against overcharging, over-discharging, overcurrent, and short circuits, helping improve battery safety and lifespan. The pack is lightweight, durable, and ready for plug-and-play integration into compatible projects. Typical specifications for a 3S1P 3000mAh pack include a 12.6V full-charge voltage, 9V discharge cut-off, and 1C continuous discharge capability (3A).

Key Features

• 3S1P Lithium-Ion battery pack configuration
• Nominal voltage: 11.1V
• Capacity: 3000mAh
• 1C continuous discharge rate (3A)
• Built-in BMS protection for enhanced safety
• Protection against overcharge, over-discharge, overcurrent, and short circuit
• Lightweight and compact design
• Stable voltage output for consistent performance
• Rechargeable with a compatible 12.6V Li-Ion charger
• Durable PVC heat-shrink insulation

Applications

• Robotics projects
• Arduino and Raspberry Pi power supply (with suitable regulator if required)
• RC cars and RC boats
• FPV drones and quadcopters
• DIY electronic projects
• Portable LED lighting
• Surveillance and monitoring systems
• Battery-powered testing equipment
• Educational and engineering prototypes

Specifications

• Brand: Freak Engineer
• Battery Type: Lithium-Ion Rechargeable Battery Pack
• Configuration: 3S1P
• Nominal Voltage: 11.1V
• Fully Charged Voltage: 12.6V
• Capacity: 3000mAh
• Continuous Discharge Rate: 1C (3A)
• Discharge Cut-off Voltage: 9V
• Protection: Built-in BMS
• Rechargeable: Yes
• Outer Covering: PVC Heat Shrink Sleeve
• Cell Type: 18650 Lithium-Ion Cells

Package Includes

• 1 × Freak Engineer 3S1P 11.1V 3000mAh 1C Li-Ion Battery Pack with BMS

Advantages

• Long service life
• High energy density
• Reliable safety protection
• Lightweight and portable
• Easy installation
• Maintenance-free operation

Safety Instructions

• Use only a compatible 12.6V Li-Ion charger.
• Do not puncture, crush, or expose the battery to fire.
• Avoid short-circuiting the battery terminals.
• Store in a cool, dry place when not in use.
• Do not use a damaged or swollen battery.