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Experience the best of both worlds with the Molicel P30B – a rare 18650 cell that combines a substantial 3000mAh capacity with a true 30A continuous discharge. This 4-pack is the ultimate power upgrade for high-wattage , cordless power tools, FET-driven flashlights, and RC vehicles. Choose between flat top and button top to fit your specific device. With an ultra-low internal resistance of approximately 12mΩ, the P30B delivers minimal voltage sag and maximum punch, all while giving you more runtime than typical high-drain cells. When you need both endurance and extreme current, the P30B is the professional’s choice.
3000mAh + 30A Balanced Performance – The perfect sweet spot between high capacity and high drain. Enough energy for longer sessions, enough current for demanding builds and tools.
30A True Continuous Discharge – Handles sub-ohm vaping, power tool start-up surges, and FET turbo flashlights without breaking a sweat. No pulsing, no guesswork.
Ultra-Low Internal Resistance (~12mΩ) – Minimizes heat generation and voltage drop, ensuring consistent performance and longer cell life even under heavy loads.
Flat Top & Button Top Options – Flat top for spring-contact devices and spot-welding packs; button top for devices requiring a raised positive terminal. Versatility out of the box.
4-Pack Convenience – Ideal for dual-battery mods, replacing cells in a tool pack, or building a small high-current RC pack.
Molicel Genuine Quality – Manufactured by one of the most trusted names in high-drain lithium cells, with rigorous testing and consistent batch performance.
| Parameter | Specification |
|---|---|
| Model | Molicel INR-18650-P30B |
| Typical Capacity | 3000 mAh (0.2C discharge to 2.5V) |
| Minimum Capacity | 2900 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 40 A (short burst, monitor temperature) |
| Discharge Cut-off Voltage | 2.5 V (do not over-discharge) |
| Standard Charge | CC-CV, 0.5C (1500 mA) to 4.2 V, cut-off 50 mA |
| Max Charge Current | 1C (3000 mA); fast charge above 1C requires temperature monitoring |
| Internal Resistance | ≤ 15 mΩ (typical ~12 mΩ, AC 1 kHz) |
| Cycle Life | ≥ 250 cycles (to 80% capacity, 1C charge / 10A discharge) |
| Operating Temperature (Discharge) | -20°C to 60°C (ensure adequate cooling for sustained 30A) |
| Top Type | Flat Top or Button Top (please select) |
| Dimensions (Flat Top) | Approx. 18.4 mm diameter × 65.0 mm length |
| Weight (single cell) | Approx. 48 g |
| Package Includes | 4 × Molicel P30B 18650 cells in protective packaging (selected top type) |
Recommended For
High-Power Vaping: Mechanical mods and high-wattage regulated devices with sub-ohm builds (safely down to ~0.13Ω at 3.6V). The 3000mAh capacity provides noticeably longer vaping sessions compared to 2500-2600mAh cells.
Cordless Power Tools: Impact drivers, drills, and wrenches when used in properly built battery packs with a BMS. The 30A rating handles startup surges effortlessly.
High-Output Flashlights: FET-driven or direct-drive hot-rod lights with turbo modes pulling 20–30A. Enjoy both extreme brightness and extended runtime.
RC Cars, Boats & Airsoft: Competitive models that need instant burst currents and benefit from the extra capacity for longer play.
DIY High-Current Projects: Spot welders, portable jump starters, and any application where balanced capacity and current matter.
Not Recommended For
Ultra-Long Runtime Low-Power Devices: If your device draws less than 5A continuously, a 3500mAh high-capacity cell (e.g., Panasonic NCR18650GA) will provide longer runtime.
Standard USB Power Banks: The high-current capability is wasted; a cheaper high-capacity cell is more suitable.
Devices with Extremely Tight Battery Compartments: Button top versions add slight length; verify fit before ordering.
Q: What makes the P30B special compared to other high-drain cells?
A: Most high-drain 18650s sacrifice capacity for current (e.g., 2600mAh for 35A). The P30B gives you a genuine 30A while keeping 3000mAh, meaning you don’t have to choose between power and runtime. It’s the ideal “all-day” high-performance cell.
Q: Can I use this for vaping? What resistance is safe?
A: Yes, the P30B is excellent for mechanical mods and regulated high-wattage devices. With a 30A continuous limit and 3.6V nominal, it can safely fire builds down to approximately 0.13Ω, leaving a comfortable safety margin. Always calculate your actual current using Ohm’s law.
Q: Should I choose flat top or button top?
A: Flat top is the standard for most spring-loaded flashlights, chargers, and for spot-welding battery packs. Button top is needed for some devices that require a raised positive contact for reverse-polarity protection or specific battery holders. Check your device’s requirements before ordering.
Q: Is this battery protected?
A: No, the P30B is an unprotected cell, which is standard for high-drain applications to allow full current flow. Your device must have its own low-voltage protection, or you must use an external BMS when building multi-cell packs.
Q: How should I store these cells long-term?
A: Store at 3.6–3.7V (about 40–50% charge) in a cool, dry place inside a non-conductive case. Avoid storing fully charged or fully discharged for weeks or months.
Free Shipping: Enjoy free shipping on all orders over $65. For orders under $65, the shipping cost is $8.99.
Delivery Time: Once shipped, orders typically arrive within 7–15 business days.
Easy Returns: We want you to be completely satisfied. If you're not, you can return your product within 30 days of receiving your order. Please ensure the items are unused and in their original condition. For return instructions, please contact our support team.
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