Safe high-voltage power for your custom electronics.
This Samsung 30Q 4S 18650 Battery Pack features four genuine Samsung INR18650-30Q cells connected in series (4S) in a compact square layout. It delivers a nominal 14.8V voltage (16.8V full charge) and a solid 3000mAh capacity.
The integrated Protection Board (BMS) is the key feature of this pack, offering comprehensive safety against overcharge (cut-off at 16.8V), over-discharge, over-current, and short circuits. It safely limits the continuous working current to 6A (90W).
Pre-wired with a default XH2.54 2-pin connector, it is ready to plug into your custom 14.8V/16V electronics. Important: This pack is designed for low-to-medium current devices. It is not intended for high-drain power tools or RC vehicles (which require 20A+).
Key Features
4S Series Configuration (14.8V / 16.8V): Provides a high 14.8V nominal voltage (16.8V full charge) for devices requiring a 16V power source.
Built-in Protection Board (BMS): Features overcharge protection (16.8V cutoff), over-discharge, over-current, and short-circuit protection. Limits continuous current to 6A (90W) for safety.
Genuine Samsung 30Q Cells: Authentic high-quality cells ensure reliable capacity and long cycle life.
Pre-wired & Plug-and-Play: Comes with a default XH2.54 2-pin connector (red/black leads, 8-15cm) for easy integration.
Compact 4-Cell Square Layout: Shrink-wrapped with the side protection board, measuring approx. 68.8mm (H) x 36.9mm (W) x 36.9mm (D).
Parameters
*Dimensions are approximate and include the protection board and heat shrink wrap. Please allow ±1-2mm tolerance.
Applications
Recommended For:
DIY Electronics & 16V Devices: Perfect for custom 16V audio amplifiers, portable speakers, and electronic circuits.
Portable LED Lighting: Suitable for high-power 12V/16V LED strips or camping lights (under 6A).
Robotics & Custom Projects: Reliable 14.8V power for microcontrollers and sensors.
Power Backup Systems: Build custom 16.8V backup power supplies.
Not Recommended For:
High-Drain Power Tools or RC Models (>6A): Do not use in drills, saws, RC cars, or drones. The 6A protection limit will trip and cut off power under heavy loads.
Devices Requiring Bare Cells: If your device's battery tray expects a standard flat-top cell, this pre-wired pack will not fit.
12V Devices: While 14.8V is often used as a "16V" replacement, ensure your 12V device can handle up to 16.8V before using.
FAQ
Q1: What does "4S" mean and how does it differ from a single cell?
A: "4S" means 4 cells in Series. This increases the voltage to 14.8V (16.8V full charge) while keeping the capacity at 3000mAh.
Q2: What is the maximum discharge current?
A: The built-in protection board limits the continuous working current to 6A (approximately 90W). It is not designed for high-drain devices.
Q3: How do I charge this 14.8V pack?
A: You must use a dedicated 4S Li-ion charger (16.8V output) with a charging current of 1A-3A, or integrate it into a custom charging circuit with the correct 16.8V cutoff.
Q4: Can I use this for my power tool?
A: No. Power tools typically require 15A to 30A+. The 6A limit on this protection board will cause it to shut off immediately under load.
Q5: What is the connector type?
A: It comes pre-wired with a default XH2.54 2-pin connector (red/black). Other connector types may be available upon request.