3.7V 18650 2500mAh 44 Grams Lithium-Ion Rechargeable Cell Original

Product Description The Original 18650 2500mAh is a premium, high-density power cell weighing in at a substantial 44 grams. In the world of lithium batteries, weight is often a direct indicator of quality and true capacity; this 44g cell ensures a genuine 2500mAh rating with superior energy retention. It is specifically designed for demanding electronics, high-power LED flashlights, and custom battery pack assemblies where long-term stability and consistent discharge rates are non-negotiable.

Key Features

• True Capacity Guarantee: Heavy 44g construction confirms a high-density chemical core for long-lasting performance.

• Low Internal Resistance: Ensures efficient power delivery with minimal heat generation during discharge.

• Reliable Cycle Life: Engineered to withstand hundreds of charge-discharge cycles while maintaining over 80% of its original capacity.

• Industrial Standard: Flat-top design is perfect for spot-welding into 2S, 3S, or 4S packs for drones and EVs.

• Stable Voltage: Maintains a consistent 3.7V nominal output, crucial for sensitive microcontroller projects.

Technical Details

• Dimensions: 18 mm (Diameter) x 65 mm (Height)

• Standard Discharge Current: 2500mA (1C)

• Max Pulse Discharge: 2C - 3C (depending on temperature)

• Charge Cut-off Voltage: 4.2V ± 0.05V

• Discharge Cut-off Voltage: 2.75V

• Storage Temperature: -20°C to +45°C