NEW L17C4PG2 L17L4PG2 L17M4PG2 Battery For Lenovo Legion Y730-17ICHg Y740-17ICHg | eBay
Legion Y740, 4 to 5 hours battery life under use. After updating bios, enabling hybrid graphics mode, undervolting cpu by 155 mV and setting screen brightness to 50%. : r/Lenovo
New genuine Battery for LENOVO Legion Y730 17 Y740 17 L17C4PG2, L17L4PG2, L17M4PG2, L17S4PG2 4ICP6/54/90, 5B10Q88556, 928QA224H|Laptop Batteries| - AliExpress
Lenovo Legion Y740-17IRHG 816J 17.3" Battery 15.36V 4955mAh 76Wh L17M4PG2 for sale online | eBay