Double the capacity, maximum safety, and ready to plug in.
This Samsung 30Q 2P 18650 Battery Pack features two genuine Samsung INR18650-30Q cells connected in parallel (2P), delivering a massive 6000mAh capacity while maintaining a standard 3.7V nominal voltage (4.2V full charge).
Designed for DIY enthusiasts, it comes fully assembled with a built-in protection board (BMS) and pre-wired with a default XH2.54 2-pin connector. The protection board safeguards against overcharge, over-discharge, over-current, and short circuits.
Important: Because of the integrated protection board, the continuous working current is limited to 4A (peak 8A). This makes it the perfect high-capacity, low-drain power source for portable electronics, IoT devices, custom power banks, and long-runtime DIY projects. It is not intended for high-power tools or high-drain flashlights.
Key Features
Double Capacity (6000mAh): Two 3000mAh cells in parallel provide double the runtime for your devices without increasing the voltage.
Built-in Protection Board (BMS): Comprehensive safety against overcharge, over-discharge, over-current, and short circuits.
Pre-wired & Plug-and-Play: Comes with a default XH2.54 2-pin connector (red/black leads, 8-15cm) for easy integration.
Safe 4A Continuous Current: Specifically designed for low-to-medium current devices. (Max continuous 4A, peak startup 8A).
Compact 2-Cell Layout: Shrink-wrapped with the side protection board, measuring approx. 66mm (H) x 36.9mm (W) x 18.4mm (D).
Parameters
*Dimensions are approximate and include the protection board and heat shrink wrap. Please allow ±1-2mm tolerance.
Applications
Recommended For:
Long-Runtime DIY Electronics: Perfect for Arduino, ESP32, and sensor nodes where you need months of standby power.
Portable Devices: High-capacity replacement for mini fans, radios, and small wireless modules.
Custom Power Banks: Build a 6000mAh safe power bank with built-in protection.
LED Lighting (Low Power): Suitable for small desk lamps, camping lanterns, or emergency lights drawing under 4A.
Not Recommended For:
High-Drain Devices (>4A): Do not use in high-power flashlights, power tools, or devices drawing more than 4A continuously. The protection board will cut off power.
Vaping/Mechanical Mods: Not suitable for high-current vaping devices.
Devices Requiring Bare Cells: If your device's battery tray expects a standard flat-top cell, this pre-wired pack will not fit.
FAQ
Q1: Does this battery pack have a protection board?
A: Yes, it features an integrated side protection board to prevent overcharge, over-discharge, over-current, and short circuits, ensuring safe operation.
Q2: What is the maximum discharge current?
A: Because of the protection board, the continuous working current is limited to 4A (with a peak of 8A for short startups). It is not designed for high-drain devices.
Q3: Can I use this for a high-power flashlight?
A: No. High-power flashlights typically draw 5A to 10A+. The 4A protection limit will cause the board to shut off the battery. Use a bare Samsung 30Q cell for high-power lights.
Q4: What does "2P" mean?
A: "2P" stands for 2 cells in Parallel. This doubles the capacity (3000mAh + 3000mAh = 6000mAh) while keeping the voltage at 3.7V.
Q5: Can I change the connector to something else?
A: The default is an XH2.54 2-pin. We can potentially provide other connectors (like JST, PH2.0, or bare wires) upon request. Please contact us before ordering if you need a different connector.