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मूल्य सूची: Retail Price (B2C) मूल्य सूची
मूल्य सूची: Retail Price (B2C) मूल्य सूची
3.7V 18650 2500mAh 44 Grams Lithium-Ion Rechargeable Cell Original

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

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ComponentSpecification
ChemistryLithium-Ion (Li-ion)
Model18650
Nominal Voltage3.7V
Full Charge Voltage4.2V
Capacity2500mAh
Weight44 Grams (High Density)
Top StyleFlat Top
Price
₹ 101.69 ₹ 101.69
(Tax included)

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

Prototyping and Engineering Tips from Robogears

  • The Weight Test: When buying 18650 cells, always check the weight. Low-quality or "fake" cells often weigh less than 35g. At 44g, this cell represents the gold standard for high-capacity 18650 chemistry.

  • BMS Protection: This is an unprotected industrial cell. For DIY power banks or robotics, you must use a BMS (Battery Management System) to protect against over-discharge. Dropping below 2.5V can permanently chemically "brick" the cell.

  • Heat Sinks: If you are building a high-current battery pack, ensure there is a small air gap between cells or use a battery spacer. Even high-quality cells generate heat when discharged at high rates.

  • Initial Balancing: Before building a multi-cell pack, charge all cells individually to 4.2V using a dedicated lithium charger to ensure they are balanced from the start.

Package Includes

  • 1 x 18650 3.7V 2500mAh Li-ion Original Battery (44g)

Disclaimer Images are for reference; actual color (Green/Blue/Pink) may vary by batch. Specifications subject to change by manufacturer. Handle with extreme care; never short-circuit the terminals.