The AC adapter and battery must be plugged in before the system bios can be flashed" - Dell Community
![Amazon.com: Tanch Y3F7Y6B WDX0R Laptop Battery Replacement for Dell Inspiron 15 5579 Inspiron 15 5578 2-in-1 Inspiron 14-7460 11.4 or 11.46V 3500mAh 42Wh : Electronics Amazon.com: Tanch Y3F7Y6B WDX0R Laptop Battery Replacement for Dell Inspiron 15 5579 Inspiron 15 5578 2-in-1 Inspiron 14-7460 11.4 or 11.46V 3500mAh 42Wh : Electronics](https://m.media-amazon.com/images/I/61rYUZVR9ES._AC_UF894,1000_QL80_.jpg)
Amazon.com: Tanch Y3F7Y6B WDX0R Laptop Battery Replacement for Dell Inspiron 15 5579 Inspiron 15 5578 2-in-1 Inspiron 14-7460 11.4 or 11.46V 3500mAh 42Wh : Electronics
![Dell Latitude 9510 (2-in-1) review: 24-hour battery life, great audio sell this business laptop | PCWorld Dell Latitude 9510 (2-in-1) review: 24-hour battery life, great audio sell this business laptop | PCWorld](https://www.pcworld.com/wp-content/uploads/2023/04/img_20200709_130743-2-100855146-orig.jpg?quality=50&strip=all)