Technical Specifications

General Information

• Product Name: Dell 3521 - 5521 65W Laptop Battery
• Type: Rechargeable Lithium-Ion (Li-ion) Battery

Compatibility

• Compatible Models:
  • Dell Inspiron 15 3521
  • Dell Inspiron 15 5521
  • Also compatible with Dell Inspiron 3537, 5537, 5721, 5737, 3721, and 3737 series laptops
  • ell Inspiron 14 14R Series 14-3421 14R-3437 14R-5421 14R-5437 for Dell Inspiron 15 15R Series 15-3521 15-3531 15-3537 15-3542 15R-5521 15R-5537 for Dell Inspiron 17 17R Series 17-3721 17-3737 17R-5721 17R-5737 M731R-5735 M531R-5535 Latitude E3440 E3540 Series Vostro 2421 2521

Electrical Specifications

• Voltage: 11.1V
• Capacity: 4400 mAh
• Energy: 65 Wh
• Cells: 6-cell battery pack

Physical Specifications

• Dimensions:
  • Length: Approximately 204 mm
  • Width: Approximately 50 mm
  • Height: Approximately 20 mm
• Weight: Approximately 400 grams (varies slightly based on manufacturer and specific design)

Features

• Battery Technology: Lithium-Ion (Li-ion)
• Cycle Life: Generally around 300-500 charge cycles (depends on usage and maintenance)
• Certification: CE, RoHS, FCC (varies by manufacturer)

Performance

• Typical Runtime: Varies based on laptop model and usage, but generally provides 3-5 hours of usage on a full charge (subject to power consumption and usage patterns)
• Charge Time: Approximately 2-3 hours to fully charge (depends on the laptop’s charging system and power adapter)

Safety Features

• Overcharge Protection: Yes
• Over-discharge Protection: Yes
• Short Circuit Protection: Yes
• Overcurrent Protection: Yes

Environmental Requirements

• Operating Temperature: 0°C to 45°C (32°F to 113°F)
• Storage Temperature: -20°C to 60°C (-4°F to 140°F)
• Relative Humidity: 20% to 80% non-condensing

Summary

• Voltage: 11.1V
• Capacity: 4400 mAh
• Energy: 65 Wh
• Cells: 6-cell battery pack
• Typical Runtime: 3-5 hours on a full charge (depending on usage)
• Charge Time: 2-3 hours
• Weight: Approximately 400 grams
• Dimensions: 204 mm x 50 mm x 20 mm
• Safety Features: Overcharge, Over-discharge, Short Circuit, Overcurrent Protection
• Certifications: CE, RoHS, FCC