![Amazon.com: Replacement CMOS Battery for DELL Inspiron 1318 1720 1721 Vostro 1400 1500 1700 XPS 15 L501X Precision M2400 M4400 M6500 Backup Reserve Button Cell Batteries 3 Pins 3 Wires : Electronics Amazon.com: Replacement CMOS Battery for DELL Inspiron 1318 1720 1721 Vostro 1400 1500 1700 XPS 15 L501X Precision M2400 M4400 M6500 Backup Reserve Button Cell Batteries 3 Pins 3 Wires : Electronics](https://m.media-amazon.com/images/I/61RsuM7UCfL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Replacement CMOS Battery for DELL Inspiron 1318 1720 1721 Vostro 1400 1500 1700 XPS 15 L501X Precision M2400 M4400 M6500 Backup Reserve Button Cell Batteries 3 Pins 3 Wires : Electronics
![How to replace bios battery at old Dell laptop Inspiron Series CMOS checksum bad (Error 0251 & 0271) - YouTube How to replace bios battery at old Dell laptop Inspiron Series CMOS checksum bad (Error 0251 & 0271) - YouTube](https://i.ytimg.com/vi/l8uQ4_lzSZs/maxresdefault.jpg)
How to replace bios battery at old Dell laptop Inspiron Series CMOS checksum bad (Error 0251 & 0271) - YouTube
![Amazon.com: Rome Tech CMOS Battery for Dell Inspiron 1420 / Dell Inspiron 1520 / Dell Inspiron 1521 / Dell Inspiron 1720 / Dell Inspiron 1721 - Laptop Backup BIOS RTC 3V CR2032 Battery with 3 Wire Cable : Electronics Amazon.com: Rome Tech CMOS Battery for Dell Inspiron 1420 / Dell Inspiron 1520 / Dell Inspiron 1521 / Dell Inspiron 1720 / Dell Inspiron 1721 - Laptop Backup BIOS RTC 3V CR2032 Battery with 3 Wire Cable : Electronics](https://m.media-amazon.com/images/I/41II9EKn5DL._AC_.jpg)
Amazon.com: Rome Tech CMOS Battery for Dell Inspiron 1420 / Dell Inspiron 1520 / Dell Inspiron 1521 / Dell Inspiron 1720 / Dell Inspiron 1721 - Laptop Backup BIOS RTC 3V CR2032 Battery with 3 Wire Cable : Electronics
![Dell CYMC1 - 3V Lithium CMOS Battery for Inspiron, Latitude, Optiplex, Precision, PowerEdge, Studio, Vostro, XPS Computers Dell CYMC1 - 3V Lithium CMOS Battery for Inspiron, Latitude, Optiplex, Precision, PowerEdge, Studio, Vostro, XPS Computers](https://cdn11.bigcommerce.com/s-qfzamxn9kz/images/stencil/original/products/146024/192214/dell-cymc1-3v-lithium-cmos-battery-for-inspiron-latitude-optiplex-precision-poweredge-studio-vostro-xps-computers-22__38342.1556898714.jpg?c=2)