High-drain power in a space-saving triangular layout for your custom DIY battery packs.
This Samsung 30Q 3S 18650 Battery Pack is a pre-assembled bare cell configuration, featuring three genuine Samsung INR18650-30Q high-drain cells arranged in a compact triangular series (3S1P) with spot-welded nickel tabs. It delivers a nominal 11.1V voltage (12.6V full charge) and a 3000mAh capacity, with a powerful 15A continuous discharge capability.
The triangular layout makes this pack ideal for custom projects where space is tight and a standard inline 3-cell pack won't fit.
IMPORTANT: This is a BARE CELL PACK.
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No BMS (Protection Board) is included.
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No wires or connectors are attached.
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The nickel tabs are pre-welded at specific positions: B1 (middle cell positive), B2 (rear connection), and Total Positive B+. Please refer to the diagram before soldering.
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You must have the skills to solder your own connections and install an external 3S BMS before use. Never use or charge this pack without proper protection.
Key Features
Genuine Samsung 30Q Cells: Authentic high-drain 18650 cells, rated for high-current applications.
15A Continuous Discharge: The official Samsung 30Q rating provides explosive power for demanding DIY projects, RC models, or custom power tools. (Supports up to 20A short bursts).
Space-Saving Triangular Layout: Ideal for fitting into tight, non-standard battery compartments.
Pre-welded Nickel Tabs: Comes with pure nickel strips spot-welded to the terminals, ready for you to solder your wires or build a battery pack.
3S Series Configuration (11.1V): Provides the higher voltage required for 12V applications.
Parameters
*Dimensions are approximate. Please allow ±1-2mm tolerance.
Applications
Recommended For:
DIY Battery Packs: For building custom 12V power packs for robotics, power tools, or portable devices where a triangular fit is needed.
RC Models & Airsoft: Suitable for high-current RC cars, boats, or Airsoft AEGs (requires proper wiring and BMS).
Custom High-Drain Projects: Spot welders, portable jump starters, or any project demanding 15A bursts.
Not Recommended For:
Beginners or Plug-and-Play Users: If you cannot spot-weld, solder, and install a BMS, do not buy this product.
Devices Requiring a Finished Pack: This will not fit directly into standard battery compartments without custom wiring.
Vaping (Unprotected): Using bare, unprotected cells in mechanical mods is extremely dangerous and not recommended.
FAQ
Q1: Does this battery have a protection board (BMS)?
A: No. This is a bare cell pack. You must install an external 3S BMS to protect against overcharge, over-discharge, and short circuits.
Q2: Does it come with wires?
A: No. It only includes spot-welded nickel tabs. You will need to solder your own wires or spot-weld your connections.
Q3: How do I wire this triangular pack?
A: Please refer to the product image. The tabs are welded at specific spots: B1 (middle cell positive), B2 (rear connection), and Total Positive B+. You will need to connect the BMS according to this layout.
Q4: What is the actual discharge current?
A: The Samsung 30Q cells have an official continuous discharge rating of 15A (with short bursts up to 20A). However, the actual current you can draw will depend entirely on the BMS and wiring you install.
Q5: Can I request a different tab position?
A: Yes, custom tab welding (B1, B2, B+ positions) may be available upon request. Please contact us before ordering if you need a specific wiring layout.
