Got a Dell XPS 15 9550's battery replaced, been working out for a little while now has a 12% capacity issue. : r/techsupport
XPS 15-9570, not recognizing XPS 15-9550 battery | DELL Technologies
Amazon.com: LeFix Replacement for DC in Power Jack Charging Port Socket Cable Dell XPS 15 9550 9560 9570 P56F Precision 5510 M5520 Series,64TM0 064TM0 AAM00 DC30100X300 DC30100X200 : Electronics
11.4V 56WH New H5H20 Laptop Battery For Dell XPS 15 9550 9550 9560 9570 Precision 5530 5520 7590 M5520 Series - AliExpress