Amazon.com: Amanda WJ5R2 Battery Replacement for Dell Precision 3510 Series Latitude E5570 4F5YV 11.4V 84Wh : Electronics
Amazon.com: Rome Tech RTC CMOS Battery for Dell Latitude 2110 Dell Latitude 2120 Dell Latitude E5440 Dell Latitude E5450 Dell Latitude E5540 - Laptop Backup CMOS BIOS Battery CR2032 with 2 Pin
EEprom needed for Dell Battery Samsung SDI with bq30420 chip – Laptop Battery Chip Reset, Reprogram and Repair – Laptop Battery Analyzer and Repair Forum