HP CL SDI18650 2.8Ah (807611-241) Laptop Battery

The HP CL SDI18650 2.8Ah (807611-241) is a high-quality lithium-ion laptop battery designed for reliable power delivery. Manufactured by Samsung SDI, this 18650 cylindrical cell offers a nominal voltage of 3.7V and a rated capacity of 2.8Ah (2800mAh), providing 10.36Wh of energy. Ideal for DIY laptop battery replacements or custom battery packs, it requires an external Battery Management System (BMS) for safe operation.

Advantages

This battery cell delivers consistent performance with a typical cycle life of 300-500 cycles (to 80% capacity). Its compact dimensions (18.3mm diameter, 65.0mm length) and light weight (48g) make it suitable for portable devices. The flat top terminal design ensures compatibility with various battery holders and spot welding applications.

Suitable for

• HP laptop battery pack repairs
• Custom 18650 battery packs
• Power bank projects
• Portable electronics requiring 3.7V Li-Ion cells

Key specifications

• Battery Chemistry: Lithium-Ion (Li-Ion)
• Cell Form Factor: 18650 Cylindrical
• Nominal Voltage: 3.7 V
• Rated Capacity: 2.8 Ah (2800 mAh)
• Energy Rating: 10.36 Wh
• Maximum Charge Voltage: 4.2 V
• Minimum Discharge Voltage: 2.5 V
• Terminal Type: Flat Top
• Protection Circuit: Unprotected (requires external BMS)
• Operating Temperature (Charge): 0°C to 45°C
• Operating Temperature (Discharge): -20°C to 60°C
• Approximate Weight: 48 g
• Approximate Diameter: 18.3 mm
• Approximate Length: 65.0 mm
• Cell Manufacturer: Samsung SDI
• Rechargeable: Yes
• Typical Cycle Life: 300-500 cycles (to 80% capacity)

Recommendations

For safe and optimal performance, always use this cell with a compatible Battery Management System (BMS). Ensure proper handling and charging within specified voltage and temperature ranges. Suitable for experienced users building or repairing battery packs.