Freak Engineer 11.1V 3000mAh Li-Ion Battery Pack - No BMS

Product Overview

Bring your high-potential electronics projects to life with the Freak Engineer 11.1V 3000mAh (3Ah) Li-Ion Rechargeable Battery Pack. Built using premium-grade 18650 lithium-ion cells in a streamlined 3S1P configuration, this battery delivers highly stable, lightweight power perfect for mid-load applications.

Engineered for flexibility, this pack features a continuous 1C discharge rate (3A Maximum), providing reliable energy delivery for embedded boards, smart devices, and microcontrollers.

Important Note for Developers & Makers: > This battery pack is intentionally supplied without an integrated BMS (Battery Management System). This allows advanced users, engineers, and hobbyists complete freedom to design their own protection circuitry, integrate custom balancing boards, or use existing system-level external protection architectures.

Key Features

• Optimal 11.1V Output: Perfect for mid-voltage configurations like motors, specialized sensors, and remote telemetry systems.

• Premium 18650 Cells: Built in a compact 3S1P (3 cells in series) arrangement for efficient space utilization.

• No Built-In BMS: Raw pack architecture gives experienced builders full control over external battery management setups.

• Continuous 1C Discharge: Reliably delivers up to 3A max continuous current for stable performance.

• Lightweight & Compact: Easy to integrate into weight-sensitive mobile designs like mini-rovers and portable instruments.

• Pre-Wired for Convenience: Comes factory-assembled with an output lead cable for swift integration into your project power path.

• Proudly Made in India: Manufactured with strict quality control protocols to ensure top-tier cellular health and lifespan.

Technical Specifications

ParameterSpecificationBrandFreak EngineerBattery ChemistryLithium-Ion (Li-Ion)Cell Type18650 Cylindrical CellsConfiguration3S1PNominal Voltage11.1V (Full Charge: ~12.6V)Capacity3000mAh / 3AhContinuous Discharge Rate1C (3A Maximum Continuous)BMS ProtectionNone (External BMS Required)Output ConnectionPre-attached cable with connectorCountry of OriginIndia

Applications

This 11.1V 3Ah raw Li-ion pack is highly optimized for:

• Robotics & Automation: Line-following bots, small robotic arms, and basic micro-controller motor drivers.

• Development Platforms: High-efficiency power for Arduino, Raspberry Pi, and ESP32 projects (when paired with appropriate voltage regulators).

• IoT & Embedded Electronics: Portable instrumentation devices, remote environmental logging systems, and low-power smart tracking units.

• Prototypes & Hobbies: Custom backup power supplies, emergency LED lighting loops, and educational classroom electronics.

Critical Safety & Usage Instructions

Because this battery pack does NOT feature an integrated safety board, strict adherence to the following guidelines is necessary for safe handling:

• External BMS Required: Always use a fitting external 3S Battery Management System (BMS) during deployment to safely regulate overcharging, over-discharging, and short circuits.

• Strict Charging Protocol: Charge only with a dedicated 3S (12.6V) Lithium-Ion battery charger with proper CC/CV curves. Never use incorrect adapters.

• Handling & Storage: Never short-circuit the terminals, pierce, crush, or subject the cell block to extreme open heat or moisture. Store in a cool, well-ventilated dry space.

Package Includes

• 1 × Freak Engineer 11.1V 3000mAh (3S1P) Li-Ion Battery Pack (No BMS)

• 1 × Pre-attached output cable with connector