High Rate 18650 3.7V 2000mAh 30A 18650 Li-ion Cells - Overstock!

These are overstock 18650 3.7V 2000mAh high-rate Li-ion cylindrical cells.

Of course we get these in large full cases so we will repackage your order into custom packaging for safe shipment.

These high-rate cells deliver strong continuous discharge in a compact form factor. Since we're clearing overstock, you can purchase exactly the quantity you need — no minimum cases or fixed packs required. Buy 1, 10, 50, or more!

Specifications:

• Nominal Voltage: 3.7V
• Nominal Capacity: 2000mAh (2.0Ah)
• Energy: 7.4Wh
• Max Charge Voltage: 4.20V ± 0.05V
• Discharge Cut-off Voltage: 2.5V (typical)
• Standard Charging Mode: CCCV, 1A (0.5C) to 4.20V
• Max Continuous Charge Current: 4A (2C)
• Max Continuous Discharge Current: 30A (with proper temperature cut-off)
• Dimensions (with sleeve): Diameter ≈18.3–18.5mm, Height ≈65mm (±0.15mm)
• Weight: ≈43–46g per cell

SAFETY GUIDELINES & WARNINGS

⚠️ IMPORTANT SAFETY NOTICE ⚠️ Lithium-ion batteries require proper handling and knowledge to ensure safe operation. Failure to follow safety guidelines may result in fire, explosion, serious injury, or property damage.

GENERAL SAFETY GUIDELINES

• Only purchase and use if you fully understand lithium-ion battery safety.
• Always charge in or on a fire-resistant surface—never leave batteries charging unattended.
• Use only a compatible smart charger designed specifically for 3.7V/4.2V lithium-ion cells.
• Store batteries in a protective case—never carry them loose in a pocket, bag, or purse.
• Keep away from metal objects (keys, coins, tools) to prevent short circuits.
• Use only within manufacturer-listed specifications and in protected battery packs with a proper BMS.
• Resellers must provide these warnings to all customers.

PROHIBITED USES & HANDLING

• DO NOT use this battery in e-cigarettes, vaporizers, or similar devices.
• DO NOT mix old and new, or used and unused batteries.
• DO NOT short circuit, puncture, cut, crush, incinerate, or modify the battery.
• DO NOT use if the battery wrapper is torn or damaged in any way.
• DO NOT overcharge or over-discharge—this can lead to battery failure or venting.
• DO NOT expose the battery to liquids, extreme heat, or direct sunlight.
• DO NOT solder directly—only use spot welding or nickel strips for battery pack assembly.
• DO NOT exceed 30A continuous discharge.