For battery cells, review the product description for real-world current recommendations, testing notes, and application guidance. Manufacturer maximum ratings should be treated as limits, not the best target for long-term pack health.
Description
Samsung 30Q 18650 Cell – 3000mAh – High-Drain Lithium-Ion Battery - Check availability
Continuous discharge: 15A
The Samsung 30Q 18650 3000mAh is a high-drain lithium-ion cell designed to balance strong runtime with dependable 15A continuous output.
With 3000mAh typical capacity (2950mAh minimum), 3.60V nominal voltage, and 15A continuous discharge, the 30Q is well suited for power tools, high-output flashlights, custom battery packs, and other medium-to-high-drain builds.
Samsung specifies the INR18650-30Q as a lithium-ion rechargeable cell for power tools. It is best used in properly engineered battery packs or host devices with suitable protection, charging control, and temperature monitoring.
Specifications:
| Model | Samsung INR18650-30Q |
| Size | 18650 |
| Typical Capacity | 3000mAh |
| Minimum Capacity | 2950mAh |
| Nominal Energy | 10.8Wh |
| Minimum Energy | 10.6Wh |
| Nominal Voltage | 3.60V |
| Max Voltage | 4.20V |
| Min Discharge Voltage | 2.50V |
| Max Continuous Discharge | 15A continuous |
| Standard Charge Current | 1.5A (0.5C) CC/CV to 4.20V, 150mA cut-off |
| Max Charge Current | 4.0A CC/CV to 4.20V, 100mA cut-off |
| Standard Discharge | 0.6A (0.2C), 2.50V cut-off |
| Chemistry | INR / NCA-based Lithium-ion |
| Rechargeable | Yes |
| Initial AC Impedance | ≤26mΩ at 1kHz |
| Approx. Weight | ≤48.0g |
| Dimensions | ≤18.4mm diameter × ≤65.0mm height |
| Operating Temperature | Cell surface — Charge: 0°C to 50°C (recommended recharge release <45°C) / Discharge: -20°C to 75°C (recommended re-discharge release <60°C) |
| Storage Condition | 1.5 years: -30°C to 25°C; 3 months: -30°C to 45°C; 1 month: -30°C to 60°C |
| Cycle Life | ≥60% capacity retention (≥1800mAh) after 250 cycles at standard charge and maximum continuous discharge |
| Datasheet | Datasheet |
Applications:
- ✅ High-Performance E-Bikes
- ✅ Electric Scooters
- ✅ Power Tools
- ✅ Heavy-Duty Battery Packs
- ✅ Custom 21700 Builds
DIY500AMP.COM Design – Trusted 18650 High-Drain Performance
⚠️ Safety Warning for Lithium-Ion Battery Usage
This cell is a rechargeable lithium-ion battery. Mishandling, short-circuiting, overheating, overcharging, puncture, crushing, or physical damage can cause fire, burns, or serious injury.
The Samsung 30Q should be used in a properly engineered battery pack or host device with over-charge, over-discharge, over-current, over-heat, and short-circuit protection. Charge with a CC/CV charger only, and monitor temperature during charge and discharge.
Important Usage Guidelines:
- Use in a Properly Protected Battery Pack / Host Device
- Charge with a Correct CC/CV Lithium-Ion Charger
- Monitor Temperature During Charge and Discharge
- Spot Weld Only – Do Not Solder Directly
- Do Not Use if Wrap or Insulator Is Damaged
- Prevent Shorts – Keep Away from Loose Metal Objects
- Do Not Overcharge, Over-Discharge, Crush, Puncture, or Burn
Orders ship from Florida when inventory is available. Lithium-ion cells require proper handling, protected packs, correct chargers, and safe storage. Do not solder directly to battery terminals.
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