Key Features
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True 30A Continuous Discharge – Engineered for the highest-drain applications: mechanical mods, impact drivers, and direct-drive flashlights.
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Ultra-Low Internal Resistance (≈13mΩ) – Minimizes heat, maximizes power delivery, and keeps your device performing at its peak.
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2100mAh Optimized Capacity – Sacrifices raw capacity for extreme current capability and exceptional cycle stability under load.
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Genuine Sony/Murata Cell – 100% authentic, manufactured to the strictest Japanese quality standards for consistency and safety.
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Flat Top Design – Perfect for spring-contact devices and DIY pack builders. Flat surface ensures reliable spot-welding.
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Unprotected Cell – Allows unrestricted current flow; always pair with a BMS when building multi-cell packs.
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10-Pack Value – Ideal for building high-current packs, stocking your mods, or keeping spares for demanding gear.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | Sony US18650VTC4 (Murata) |
| Typical Capacity | 2100 mAh (0.2C discharge to 2.5V) |
| Minimum Capacity | 2000 mAh |
| Nominal Voltage | 3.6 V (typical operating 3.7 V) |
| Max Continuous Discharge | 30 A (cell temperature ≤ 80°C) |
| Max Pulse Discharge | Up to 60 A (short burst <10 sec, monitor temperature) |
| Discharge Cut-off Voltage | 2.5 V (do not over-discharge) |
| Standard Charge | CC-CV, 0.5C (1050 mA) to 4.2 V, cut-off 50 mA |
| Max Charge Current | 1C (2000 mA); 2C fast charge possible with temperature control |
| Internal Resistance | Approx. 13 mΩ (AC 1 kHz) |
| Cycle Life | ≥ 300 cycles (to 70% capacity, 1C charge / 10A discharge) |
| Operating Temperature (Discharge) | -20°C to 60°C (ensure active cooling for sustained 30A) |
| Top Type | Flat Top, Unprotected |
| Dimensions | Approx. 18.2 mm diameter × 65.0 mm length |
| Weight (single cell) | Approx. 46 g |
| Package Includes | 10 × Sony VTC4 18650 cells in protective anti-static packaging |
Applications
Recommended For (Peak Power Demands)
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Cordless Power Tools: Impact drivers, drills, circular saws – perfect for rebuilding packs.
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RC Models: 1/10 scale cars, trucks, boats, and quadcopters requiring high burst current.
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High-Output Flashlights: FET-driven or multi-emitter hot-rod lights demanding 30A+.
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Airsoft AEGs: High rate-of-fire electric guns.
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DIY Battery Packs: Spot welders, portable power stations, and custom high-current applications.
Not Recommended For
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Long-runtime, low-drain devices (camping lanterns, solar lights, clocks) – choose 3500mAh cells.
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Standard USB power banks – capacity is too low and performance is wasted.
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Devices requiring button top cells (use a magnetic spacer if needed).
FAQ
Q: Is 2100mAh enough? Why not a higher capacity cell?
A: The VTC4 prioritizes current delivery over capacity. Its 2100mAh is the trade-off for a true 30A rating and ultra-low internal resistance. In high-drain devices, consistent power under load matters far more than a few hundred extra milliampere-hours. If your application draws under 10A and you need maximum runtime, switch to a high-capacity 3500mAh cell.
Q: Are these genuine Sony cells?
A: Yes. We source directly from authorized distributors. Every cell is a genuine Sony/Murata US18650VTC4. Beware of counterfeit cells sold online; we guarantee authenticity.
Q: Can I rebuild a cordless drill battery with these?
A: Yes, the VTC4 is excellent for high-torque tools. All cells must be matched for voltage and internal resistance. Spot-weld nickel strips – never solder directly to the cell – and install a BMS rated for at least 40A.
Q: How should I store and maintain them?
A: Store in a cool, dry place at around 3.6-3.7V (40% state of charge). Use a quality CC-CV lithium-ion charger. After heavy use, allow cells to cool before recharging. Never store fully charged or discharged for long periods.
