11.4v 97wh 6gtpy New Original 5xj28 Laptop Battery For Dell Precision 5510 Xps 15 9550 9560 9570 6gtpy 5xj28 - Laptop Batteries - AliExpress
Amazon.com: 6GTPY Laptop Battery 97Wh for Dell XPS 15 9560 9550 Precision 5510 5520 M5520 Replacement for 5XJ28 i7-7700HQ 5D91C Laptop [Longer Model Not for Laptop with SDD/HDD] : Electronics
Pictures of XPS 15 (9560) Motherboard and 97Wh Battery : r/Dell
New 6GTPY 11.4V 97Wh Battery for Dell XPS 15 9550 9560 9570 P56F P56F001 P56F002 Vostro 7500 7590 Precision 5510 5520 5530 M2X4 5XJ28 5D91C GPM03 451-BBYB-TM 1P6KD 4GVGH [Not for Laptop with SDD/HDD] - Walmart.com
New 6-Cell 97Wh Extended Battery for Dell XPS 15 9560 9570 Precision 5520 5530 5XJ28 GPM03 6GTPY - Walmart.com
i did it. XPS 15 9560 with 56Wh battery and 1TB secondary hard drive in place of the 97Wh battery : r/Dell