Samsung 18650 30Q 3000mAh 5C Rechargeable Lithium ion Battery Cell for Flashlight Vape E-bike
⚡ Samsung 18650 30Q 3000mAh Lithium-ion Battery Cell for Flashlight, Vape & E-bike
The Samsung 18650 30Q 3000mAh 5C Lithium-ion Battery Cell is a high-performance, high-energy-density rechargeable cell designed for power-intensive applications like flashlights, e-bikes, vapes, and scooters. Offering 234.8Wh/kg energy density, low internal resistance, and excellent heat control, this cell provides stable, long-lasting power with smooth voltage output and superior safety. It maintains 80% capacity after 500 cycles at 0.2C and supports continuous 5C (15A) discharge, making it one of the most reliable 18650 cells in the market.
Samsung 30Q 18650 Battery Specification
Model: Samsung 30Q
Rated Capacity: 3000mAh
Energy: 10.8Wh
Energy Density: 234.8Wh/kg
Minimal Capacity: 2950mAh
Rated voltage: 3.6V
Discharge Cut-off Voltage: 2.5V
Charge Cut-off Voltage: 4.2V
Cycle Life: More than 500 cycles
Dimensions: Φ18*65mm
Weight: 46g
Internal Resistance: Less than 26mΩ
Standard Discharge Current: 0.2C (600mA)
Standard Charge Current: 0.5C (1500mA)
Max Continuous Discharge Rate: 5C (15A)
Max Continuous Charge Current: 1.33C (4A)
Charging Temperature: 0 to 45℃;
Discharge Temperature: -20 to 80℃
Storage Temperature:
- -20℃~25℃: 12 months
- -20℃~45℃: 3 months
- -20℃~60 ℃: 1 month
Key Features — Samsung INR18650 30Q
🔋 High Energy Density — 234.8Wh/kg
The Samsung INR18650-30Q achieves an impressive energy density of 234.8Wh/kg, delivering more power in a smaller footprint. This makes it perfect for compact, long-runtime applications, offering a balance of capacity, power output, and thermal stability.
Whether used in a high-lumen flashlight, long-range e-bike, or high-wattage vape device, the 30Q ensures efficient energy delivery and extended operational time.
⚙️ 3000mAh Large Capacity for Extended Runtime
Featuring a nominal capacity of 3000mAh, this 18650 cell provides long-lasting performance, reducing charging frequency and extending device usage time. Its 3.6V nominal voltage platform ensures compatibility with most Li-ion systems while maintaining steady discharge characteristics.
📉 Smooth, Linear Voltage Curve for Consistent Power
The 3.6V discharge platform of the 30Q is slightly lower than the standard 3.7V Li-ion cells, resulting in a flatter, smoother discharge curve. This design minimizes voltage fluctuations and ensures stable output, protecting sensitive electronics and delivering consistent power throughout the discharge cycle.
🔁 Long Cycle Life and Reliable Performance
Engineered for both energy and endurance, the Samsung 30Q demonstrates outstanding cycle durability:
≥80% capacity retention after 500 cycles at 0.2C discharge
≥60% capacity retention after 250 cycles at 5C discharge
This long cycle life makes the 30Q ideal for devices that demand repeated charging and discharging, ensuring dependable power delivery for years of use.
⚡ 5C (15A) Continuous Discharge for High-Power Devices
The Samsung 30Q supports continuous discharge up to 15A (5C), offering low heat generation, high efficiency, and safe operation even in high-drain applications.
Perfect for:
🚴♂️ E-bikes & E-scooters
🚬 Vape mods
🔦 Tactical & professional flashlights
🔧 Power tools and hobby projects
Its low internal resistance ensures fast response, minimal voltage sag, and excellent discharge efficiency even at elevated current levels.
🌡️ Wide Operating Temperature Range
Built to perform under extreme conditions, the 30Q can operate continuously up to 80°C without thermal instability. This wide working range ensures reliability in outdoor, industrial, or high-drain applications.
🧱 Excellent Consistency for Battery Pack Assembly
With tight cell parameter consistency, the Samsung 30Q is ideal for multi-series and multi-parallel battery packs. Whether used in 10S e-bike packs or multi-cell flashlight configurations, its matched voltage, resistance, and capacity ensure balanced and stable performance.
🧩 Custom Battery Pack Support
Cestpower Battery provides customized pack design and manufacturing based on Samsung 30Q cells, including:
⚙️ Voltage & Capacity Design – From single-cell to multi-series modules
🏷️ OEM Branding – Custom labeling, shrink sleeves, and packaging
🔌 Connector Integration – JST, XT60, or customer-specific terminals
📦 Turnkey Solutions – Fully assembled, tested, and certified packs
Cestpower engineering team ensures that every custom pack meets electrical, mechanical, and safety requirements for your target application.
❓ Frequently Asked Questions (FAQ)
Q1: Can I use Samsung 30Q in a high-drain device?
A: Yes. The 30Q supports 15A continuous discharge, ideal for high-power tools, e-bikes, and vape devices.
Q2: How long can I expect the 30Q to last?
A: Under normal usage, the cell retains over 80% capacity after 500 cycles at 0.2C discharge.
Q3: Does the 30Q require a protection circuit?
A: Yes. For safety, use a PCM or BMS when building multi-cell packs to prevent overcharge, over-discharge, or short circuit.
Q4: Is the 30Q safe to use in hot environments?
A: Absolutely. It performs reliably up to 80°C, thanks to its stable thermal design and low internal resistance.
Q5: Can I order custom packs based on Samsung 30Q cells?
A: Yes. Cestpower Battery provides OEM/ODM pack assembly, including connectors, protective circuits, and branding.
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