Dell Original 4 Cell 12.2V 64WHr Laptop Battery for Latitude 5521 Precision 3470Li poly battery (internal) 64Whr, 4 cell battery Voltage: 12. 2v Built in circuit protection for device safety 1 year nationwide warranty from DELL. A guided assurance on compatibility Get confirmation on chat support within seconds 15 days easy replacement BIS certified product ensures standardization and quality of product

Over Voltage protection feature Protect the charging laptop rom getting high voltage

Screen Connector: 30 Pin screen

15 days easy replacement

1-year replacement warranty

1-year warranty

Input:100-240v

Capacity:3650 mAh

Battery Energy 42Wh

Capacity: 3378mAh

Li-poly battery (internal)

45-watt charger

4 cell 54wh battery-VKYJX